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• The Internet of Things & Commerce: Part 2 -- Interview with Brian Celenza, Commerce Innovation Strategist

  - by Katrina Gosek, Director | Commerce Product Strategy-Oracle

  Internet of Things & Commerce Series: Part 2 (of 3) Welcome back to the second installation of my three part series on the Internet of Things & Commerce. A few weeks ago, I wrote “The Next 7,000 Days” about how we’ve become embedded in a digital architecture in the last 7,000 days since the birth of the internet – an architecture that everyday ties the massive expanse of the internet evermore closely with our physical lives. This blog series explores how this new blend of virtual and material will change how we shop and how businesses sell. Now enjoy reading my interview with Brian Celenza, one of the chief strategists in our Oracle Commerce innovation group. He comments on the past, present, and future of the how the growing Internet of Things relates and will relate to the buying and selling of goods on and offline. -------------------------------------------- QUESTION: You probably have one of the coolest jobs on our team, Brian – and frankly, one of the coolest jobs in our industry. As part of the innovation team for Oracle Commerce, you’re regularly working on bold features and groundbreaking commerce-focused experiences for our vision demos. As you look back over the past couple of years, what is the biggest trend (or trends) you’ve seen in digital commerce that started to bring us closer to this idea of what people are calling an “Internet of Things”? Brian: Well as you look back over the last couple of years, the speed at which change in our industry has moved looks like one of those blurred movement photos – you know the ones where the landscape blurs because the observer is moving so quickly your eye focus can’t keep up. But one thing that is absolutely clear is that the biggest catalyst for that speed of change – especially over the last three years – has been mobile. Mobile technology changed everything. Over the last three years the entire thought process of how to sell on (and offline) has shifted because of mobile technology advances. Particularly for eCommerce professionals who have started to move past the notion of “channels” for selling goods to this notion of “Mobile First”… then the Web site. Or more accurately, that everything – smartphones, web, store, tablet – is just one channel or has to act like one singular access point to the same product catalog, information and content. The most innovative eCommerce professionals realized some time ago that it’s not ideal to build an eCommerce Web site and then build everything on top of or off of it. Rather, they want to build an eCommerce API and then integrate it will all other systems. To accomplish this, they are leveraging all the latest mobile technologies or possibilities mobile technology has opened up: 4G and LTE, GPS, bluetooth, touch screens, apps, html5… How has this all started to come together for shopping experiences on and offline? Well to give you a personal example, I remember visiting an Apple store a few years ago and being amazed that I didn’t have to wait in line because a store associate knew everything about me from my ID – right there on the sales floor – and could check me out anywhere. Then just a few months later (when like any good addict) I went back to get the latest and greatest new gadget, I felt like I was stealing it because I could check myself out with my smartphone. I didn’t even need to see a sales associate OR go to a cash register. Amazing. And since then, all sort sorts of companies across all different types of industries – from food service to apparel –  are starting to see mobile payments in the billions of dollars now thanks not only to the convenience factor but to smart loyalty rewards programs as well. These are just some really simple current examples that come to mind. So many different things have happened in the last couple of years, it’s hard to really absorb all of the quickly – because as soon as you do, everything changes again! Just like that blurry speed photo image. For eCommerce, however, this type of new environment underscores the importance of building an eCommerce API – a platform that has services you can tap in to and build on as the landscape changes at a fever pitch. It’s a mobile first perspective. A web service perspective – particularly if you are thinking of how to engage customers across digital and physical spaces. —— QUESTION: Thanks for bringing us into the present – some really great examples you gave there to put things into perspective. So what do you see as the biggest trend right now around the “Internet of Things” – and what’s coming next few years? Brian: Honestly, even sitting where I am in the innovation group – it’s hard to look out even 12 months because, well, I don’t even think we’ve fully caught up with what is possible now. But I can definitely say that in the last 12 months and in the coming 12 months, in the technology and eCommerce world it’s all about iBeacons. iBeacons are awesome tools we have right now to tie together physical and digital shopping experiences. They know exactly where you are as a shopper and can communicate that to businesses. Currently there seem to be two camps of thought around iBeacons. First, many people are thinking of them like an “indoor GPS”, which to be fair they literally are. The use case this first camp envisions for iBeacons is primarily for advertising and marketing. So they use iBeacons to push location-based promotions to customers if they are close to a store or in a store. You may have seen these types of mobile promotions start to pop up occasionally on your smart phone as you pass by a store you’ve bought from in the past. That’s the work of iBeacons. But in my humble opinion, these promotions probably come too early in the customer journey and although they may be well timed and work to “convert” in some cases, I imagine in most they are just eroding customer trust because they are kind of a “one-size-fits-all” solution rather than one that is taking into account what exactly the customer might be looking for in that particular moment. Maybe they just want more information and a promotion is way too soon for that type of customer. The second camp is more in line with where my thinking falls. In this case, businesses take a more sensitive approach with iBeacons to customers’ needs. Instead of throwing out a “one-size-fits-all” to any passer by with iBeacons, the use case is more around looking at the physical proximity of a customer as an opportunity to provide a service: show expert reviews on a product they may be looking at in a particular aisle of a store, offer the opportunity to compare prices (and then offer a promotion), signal an in-store associate if a customer has been in the store for more than 10 minutes in one place. These are all less intrusive more value-driven uses of iBeacons. And they are more about building customer trust through service. To take this example a bit further into the future realm of “Big Data” and “Internet of Things” businesses could actually use the Oracle Commerce Platform and iBeacons to “silently” track customer movement w/in the store to provide higher quality service. And this doesn’t have to be creepy or intrusive. Simply if a customer has been in a particular department or aisle for more than a 5 or 10 minutes, an in-store associate could come over an offer some assistance already knowing customer preferences from their online profile and maybe even seeing the items in a shopping cart they started at home. None of this has to be revealed to the customer, but it certainly could boost the level of service an in-store sales associate could provide. Or, in another futuristic example, stores could use the digital footprint of the physical store transmitted by iBeacons to generate heat maps of the store that could be tracked over time. Imagine how much you could find out about which parts of the store are more busy during certain parts of the day or seasons. This could completely revolutionize how physical merchandising is deployed or where certain high value / new items are placed. And / or this use of iBeacons could also help businesses figure out if customers are getting held up in certain parts of the store during busy days like Black Friday. If long lines are causing customers to bounce from a physical store and leave those holiday gifts behind, maybe having employees with mobile check as an option could remove the cash register bottleneck. But going to back to my original statement, it’s all still very early in the story for iBeacons. The hardware manufacturers are still very new and there is still not one clear standard.  Honestly, it all goes back to building and maintaining an extensible and flexible platform for anywhere engagement. What you’re building today should allow you to rapidly take advantage of whatever unimaginable use cases wait around the corner. ------------------------------------------------------ I hope you enjoyed the brief interview with Brian. It’s really awesome to have such smart and innovation-minded individuals on our Oracle Commerce innovation team. Please join me again in a few weeks for Part 3 of this series where I interview one of the product managers on our team about how the blending of digital and in-store selling in influencing our product development and vision.

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• Performance Optimization &ndash; It Is Faster When You Can Measure It

  - by Alois Kraus

  Performance optimization in bigger systems is hard because the measured numbers can vary greatly depending on the measurement method of your choice. To measure execution timing of specific methods in your application you usually use Time Measurement Method Potential Pitfalls Stopwatch Most accurate method on recent processors. Internally it uses the RDTSC instruction. Since the counter is processor specific you can get greatly different values when your thread is scheduled to another core or the core goes into a power saving mode. But things do change luckily: Intel's Designer's vol3b, section 16.11.1 "16.11.1 Invariant TSC The time stamp counter in newer processors may support an enhancement, referred to as invariant TSC. Processor's support for invariant TSC is indicated by CPUID.80000007H:EDX[8]. The invariant TSC will run at a constant rate in all ACPI P-, C-. and T-states. This is the architectural behavior moving forward. On processors with invariant TSC support, the OS may use the TSC for wall clock timer services (instead of ACPI or HPET timers). TSC reads are much more efficient and do not incur the overhead associated with a ring transition or access to a platform resource." DateTime.Now Good but it has only a resolution of 16ms which can be not enough if you want more accuracy.   Reporting Method Potential Pitfalls Console.WriteLine Ok if not called too often. Debug.Print Are you really measuring performance with Debug Builds? Shame on you. Trace.WriteLine Better but you need to plug in some good output listener like a trace file. But be aware that the first time you call this method it will read your app.config and deserialize your system.diagnostics section which does also take time.   In general it is a good idea to use some tracing library which does measure the timing for you and you only need to decorate some methods with tracing so you can later verify if something has changed for the better or worse. In my previous article I did compare measuring performance with quantum mechanics. This analogy does work surprising well. When you measure a quantum system there is a lower limit how accurately you can measure something. The Heisenberg uncertainty relation does tell us that you cannot measure of a quantum system the impulse and location of a particle at the same time with infinite accuracy. For programmers the two variables are execution time and memory allocations. If you try to measure the timings of all methods in your application you will need to store them somewhere. The fastest storage space besides the CPU cache is the memory. But if your timing values do consume all available memory there is no memory left for the actual application to run. On the other hand if you try to record all memory allocations of your application you will also need to store the data somewhere. This will cost you memory and execution time. These constraints are always there and regardless how good the marketing of tool vendors for performance and memory profilers are: Any measurement will disturb the system in a non predictable way. Commercial tool vendors will tell you they do calculate this overhead and subtract it from the measured values to give you the most accurate values but in reality it is not entirely true. After falling into the trap to trust the profiler timings several times I have got into the habit to Measure with a profiler to get an idea where potential bottlenecks are. Measure again with tracing only the specific methods to check if this method is really worth optimizing. Optimize it Measure again. Be surprised that your optimization has made things worse. Think harder Implement something that really works. Measure again Finished! - Or look for the next bottleneck. Recently I have looked into issues with serialization performance. For serialization DataContractSerializer was used and I was not sure if XML is really the most optimal wire format. After looking around I have found protobuf-net which uses Googles Protocol Buffer format which is a compact binary serialization format. What is good for Google should be good for us. A small sample app to check out performance was a matter of minutes: using ProtoBuf; using System; using System.Diagnostics; using System.IO; using System.Reflection; using System.Runtime.Serialization; [DataContract, Serializable] class Data { [DataMember(Order=1)] public int IntValue { get; set; } [DataMember(Order = 2)] public string StringValue { get; set; } [DataMember(Order = 3)] public bool IsActivated { get; set; } [DataMember(Order = 4)] public BindingFlags Flags { get; set; } } class Program { static MemoryStream _Stream = new MemoryStream(); static MemoryStream Stream { get { _Stream.Position = 0; _Stream.SetLength(0); return _Stream; } } static void Main(string[] args) { DataContractSerializer ser = new DataContractSerializer(typeof(Data)); Data data = new Data { IntValue = 100, IsActivated = true, StringValue = "Hi this is a small string value to check if serialization does work as expected" }; var sw = Stopwatch.StartNew(); int Runs = 1000 * 1000; for (int i = 0; i < Runs; i++) { //ser.WriteObject(Stream, data); Serializer.Serialize<Data>(Stream, data); } sw.Stop(); Console.WriteLine("Did take {0:N0}ms for {1:N0} objects", sw.Elapsed.TotalMilliseconds, Runs); Console.ReadLine(); } } The results are indeed promising: Serializer Time in ms N objects protobuf-net   807 1000000 DataContract 4402 1000000 Nearly a factor 5 faster and a much more compact wire format. Lets use it! After switching over to protbuf-net the transfered wire data has dropped by a factor two (good) and the performance has worsened by nearly a factor two. How is that possible? We have measured it? Protobuf-net is much faster! As it turns out protobuf-net is faster but it has a cost: For the first time a type is de/serialized it does use some very smart code-gen which does not come for free. Lets try to measure this one by setting of our performance test app the Runs value not to one million but to 1. Serializer Time in ms N objects protobuf-net 85 1 DataContract 24 1 The code-gen overhead is significant and can take up to 200ms for more complex types. The break even point where the code-gen cost is amortized by its faster serialization performance is (assuming small objects) somewhere between 20.000-40.000 serialized objects. As it turned out my specific scenario involved about 100 types and 1000 serializations in total. That explains why the good old DataContractSerializer is not so easy to take out of business. The final approach I ended up was to reduce the number of types and to serialize primitive types via BinaryWriter directly which turned out to be a pretty good alternative. It sounded good until I measured again and found that my optimizations so far do not help much. After looking more deeper at the profiling data I did found that one of the 1000 calls did take 50% of the time. So how do I find out which call it was? Normal profilers do fail short at this discipline. A (totally undeserved) relatively unknown profiler is SpeedTrace which does unlike normal profilers create traces of your applications by instrumenting your IL code at runtime. This way you can look at the full call stack of the one slow serializer call to find out if this stack was something special. Unfortunately the call stack showed nothing special. But luckily I have my own tracing as well and I could see that the slow serializer call did happen during the serialization of a bool value. When you encounter after much analysis something unreasonable you cannot explain it then the chances are good that your thread was suspended by the garbage collector. If there is a problem with excessive GCs remains to be investigated but so far the serialization performance seems to be mostly ok.  When you do profile a complex system with many interconnected processes you can never be sure that the timings you just did measure are accurate at all. Some process might be hitting the disc slowing things down for all other processes for some seconds as well. There is a big difference between warm and cold startup. If you restart all processes you can basically forget the first run because of the OS disc cache, JIT and GCs make the measured timings very flexible. When you are in need of a random number generator you should measure cold startup times of a sufficiently complex system. After the first run you can try again getting different and much lower numbers. Now try again at least two times to get some feeling how stable the numbers are. Oh and try to do the same thing the next day. It might be that the bottleneck you found yesterday is gone today. Thanks to GC and other random stuff it can become pretty hard to find stuff worth optimizing if no big bottlenecks except bloatloads of code are left anymore. When I have found a spot worth optimizing I do make the code changes and do measure again to check if something has changed. If it has got slower and I am certain that my change should have made it faster I can blame the GC again. The thing is that if you optimize stuff and you allocate less objects the GC times will shift to some other location. If you are unlucky it will make your faster working code slower because you see now GCs at times where none were before. This is where the stuff does get really tricky. A safe escape hatch is to create a repro of the slow code in an isolated application so you can change things fast in a reliable manner. Then the normal profilers do also start working again. As Vance Morrison does point out it is much more complex to profile a system against the wall clock compared to optimize for CPU time. The reason is that for wall clock time analysis you need to understand how your system does work and which threads (if you have not one but perhaps 20) are causing a visible delay to the end user and which threads can wait a long time without affecting the user experience at all. Next time: Commercial profiler shootout.

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• Bluetooth not working on an Alienware m14x r2

  - by S. L.

  on my alienware m14x r2 laptop with ubuntu 12.04.1 x64, the bluetooth interface is not working. WLAN works fine. I have a dualboot install with ubuntu & win 7 on this laptop. In win 7, the bluetooth interface works fine, because its all activated in BIOS. I have the killer wireless-n 1202 a/g/n interface with integrated bluetooth 4.0 in this laptop. Here is some code : sudo rfkill list 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 003: ID 064e:8128 Suyin Corp. Bus 002 Device 003: ID 0cf3:3004 Atheros Communications, Inc. Bus 002 Device 004: ID 187c:0521 Alienware Corporation dmesg | grep "Bluetooth" [ 2.590377] Bluetooth: Core ver 2.16 [ 2.590395] Bluetooth: HCI device and connection manager initialized [ 2.590397] Bluetooth: HCI socket layer initialized [ 2.590399] Bluetooth: L2CAP socket layer initialized [ 2.590403] Bluetooth: SCO socket layer initialized [ 2.591518] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 2.591519] Bluetooth: BNEP filters: protocol multicast [ 2.599411] Bluetooth: RFCOMM TTY layer initialized [ 2.599415] Bluetooth: RFCOMM socket layer initialized [ 2.599416] Bluetooth: RFCOMM ver 1.11 [ 2.696552] Bluetooth: Generic Bluetooth USB driver ver 0.6 [ 2.696751] Bluetooth: Atheros AR30xx firmware driver ver 1.0 [ 2.702607] Bluetooth: Configuration file not found ar3k/ramps_0x11020000_40.dfu [ 2.702609] Bluetooth: Loading sysconfig file failed Any ideas to fix that problem ?

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• Picking a code review tool

  - by marcog

  We are a startup looking to migrate from Fogbugz/Kiln to a new issue tracker/code review system. We are very happy with Jira, especially the configurability, but we are undecided on a code review tool. We have been trialing Bitbucket, but it doesn't fit our workflow well. Here are the problems we have identified with BB: Comments can be hard to find: when commenting on code not visible in the diff when code that is commented on is later changed viewing the full file doesn't include comments (also doesn't show changes) Viewing comments on individual commits can be a pain We have the implementer merge the diff and close the issue, whereas pull requests are more suited to the open source model where someone with commit rights merges We would like to automate creation of the code review (either from Jira or a command line tool) No syntax highlighting Once the pull request exceeds a certain size, BB won't show the whole thing and you have to view individual commits Linking BB pull requests to Jira issues is a bit janky: we have a pull request URL field on Jira, but this doesn't work when there are changes in multiple repositories Does anyone have any good suggestion given the above? We are tight on budget, and Jira integration is a big plus. We also have multiple commits per issue, and would like to have the option of viewing individual commits in the review. It might also be worth noting that we have a separate reviewer and tester for each issue.

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• ADF Bounded Taskflow Activation

  - by Vijay Mohan

  hey guys, It's really been a while since I last blogged. Just came across a hard-to-debug scenario, so thought of sharing it for the benefit of ADF developers.I had a page fragment(jsff) wrapped inside a  bounded taskflow, for which the activation was conditional and was based on a requestScope property (be it a requestScope variable or a property coming from a requestScope bean). As soon as the taskflow activates and page renders the requestScope parameters life span ends. After that, when you raise an event inside the page (click of commandLink, moseHover, valueChange event etc) then for the first time the event gets fired but it fails to affect the change in the page, moreover, for the subsequent times the event itself doesn't get fired. Any guesses as to what could be the culprit..?I guess, I already gave the reason in the initial paragraph. For the first time when the event gets fired, the fwk sees that the page is already lying in inactivate state, so it fails to affect the change and for subsequent times it doesn't even fire the event because it already knew that the page/region is inactive. So, in such a scenario we must use either a pageFlowScope property or transientVO property which could exist till the page's life span.

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• Failure to toubleshoot a juju charm deployment

  - by Bruno Pereira

  My environments.yaml looks like this: environments: test: type: local control-bucket: juju-a14dfae3830142d9ac23c499395c2785999 admin-secret: 6608267bbd6b447b8c90934167b2a294999 default-series: oneiric juju-origin: distro data-dir: /home/bruno/projects/juju juju bootstrap runs perfect: 2011-11-22 19:19:31,999 INFO Bootstrapping environment 'test' (type: local)... 2011-11-22 19:19:32,004 INFO Checking for required packages... 2011-11-22 19:19:33,584 INFO Starting networking... 2011-11-22 19:19:34,058 INFO Starting zookeeper... 2011-11-22 19:19:34,283 INFO Starting storage server... 2011-11-22 19:19:40,051 INFO Initializing zookeeper hierarchy 2011-11-22 19:19:40,247 INFO Starting machine agent (origin: distro)... [sudo] password for bruno: 2011-11-22 19:23:16,054 INFO Environment bootstrapped 2011-11-22 19:23:16,079 INFO 'bootstrap' command finished successfully Deploy from a known good charm is accepted (tried it with one that I am trying to create): juju deploy --repository=/home/bruno/projects/charms_repo/ local:teamspeak 2011-11-22 19:28:49,929 INFO Charm deployed as service: 'teamspeak' 2011-11-22 19:28:49,962 INFO 'deploy' command finished successfully After this I can see that juju debug-log shows activity and I can see the network indicator going on and off and activity on my hard-disk. Wait... Looking at juju status I get: services: teamspeak: charm: local:oneiric/teamspeak-1 relations: {} units: teamspeak/0: machine: 0 public-address: 192.168.122.226 relations: {} state: start_error juju debug-log does not help and I have no files under /var/log/juju or /var/lib/juju. Last juju debug-log only shows this: 2011-11-22 19:45:20,790 Machine:0: juju.agents.machine DEBUG: Units changed old:set(['wordpress/0']) new:set(['wordpress/0', 'teamspeak/0']) 2011-11-22 19:45:20,823 Machine:0: juju.agents.machine DEBUG: Starting service unit: teamspeak/0 ... 2011-11-22 19:45:21,137 Machine:0: juju.agents.machine DEBUG: Downloading charm local:oneiric/teamspeak-1 to /home/bruno/projects/juju/bruno-test/charms 2011-11-22 19:45:22,115 Machine:0: juju.agents.machine DEBUG: Starting service unit teamspeak/0 2011-11-22 19:45:22,133 Machine:0: unit.deploy INFO: Creating container teamspeak-0... 2011-11-22 19:47:04,586 Machine:0: unit.deploy INFO: Container created for teamspeak/0 2011-11-22 19:47:04,781 Machine:0: unit.deploy DEBUG: Charm extracted into container 2011-11-22 19:47:04,801 Machine:0: unit.deploy DEBUG: Starting container... 2011-11-22 19:47:07,086 Machine:0: unit.deploy INFO: Started container for teamspeak/0 2011-11-22 19:47:07,107 Machine:0: juju.agents.machine INFO: Started service unit teamspeak/0 How can I troubleshot what is happening here?

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• Oracle’s FY14 Partner Kickoff Recap & New OPN Website

  - by Kristin Rose

  There is no doubt that we are off to a strong FY14! Now that Oracle’s Global Partner Kickoff has come and gone, it’s time to take what we have learned and focus on having the strongest year ever! To quote Oracle pilot, Sean D. Tucker, “FY14, it’s all about growth baby!” Here are some of the ways you can grow with Oracle! Sell into accounts where Oracle isn’t selling directly Offer customer added value solutions leveraging our technology Offer deep market capabilities that leverage transformative technology Be aggressive, sell the entire stack, engage with Oracle in the marketplace and get engineered for growth! With this being said, we also know that to have the strongest year ever, you also need the strongest tools ever! Ladies and gentleman, in case you missed its debut during Oracle’s Global Partner Kickoff, let OPN introduce you to the newly redesigned, Oracle PartnerNetwork website, providing  easy access to key business processes, systems and resources! We took your advice and implemented the following enhancements: A new OPN home page, highlighting paths to top tasks Streamlined top navigation New business process focused pages Restructured Knowledge Zone areas (currently applied to select pages) Learn more about the new Oracle PartnerNetwork website and all that Oracle has to offer, by watching the FY14 Global Partner Kickoff replay video below! Thank you for your hard work and partnership in FY13, here’s to an even stronger FY14! Good Selling, The OPN Communications Team

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• Fixing unbootable installation on LVM root from Desktop LiveCD

  - by intuited

  I just did an installation from the 10.10 Desktop LiveCD, making the root volume an LVM LV. Apparently this is not supported; I managed it by taking these steps before starting the GUI installer app: installing the lvm2 package on the running system creating an LVM-type partition on the system hard drive creating a physical volume, a volume group and a root LV using the LVM tools. I also created a second LV for /var; this I don't think is relevant. creating a filesystem (ext4) on each of the two LVs. After taking these steps, the GUI installer offered the two LVs as installation targets; I gladly accepted, also putting /boot on a primary partition separate from the LVM partition. Installation seemed to go smoothly, and I've verified that both the root and var volumes do contain acceptable-looking directory structures. However, booting fails; if I understood correctly what happened, I was dropped into a busybox running in the initrd filesystem. Although I haven't worked through the entirety of the grub2 docs yet, it looks like the entry that tries to boot my new system is correct: menuentry 'Ubuntu, with Linux 2.6.35-22-generic' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod part_msdos insmod ext2 set root='(hd0,msdos3)' search --no-floppy --fs-uuid --set $UUID_OF_BOOT_FILESYSTEM linux /vmlinuz-2.6.35-22-generic root=/dev/mapper/$LVM_VOLUME_GROUP-root ro quiet splash initrd /initrd.img-2.6.35-22-generic } Note that $VARS are replaced in the actual grub.cfg with their corresponding values. I rebooted back into the livecd and have unpacked the initrd image into a temp directory. It looks like the initrd image lacks LVM functionality. For example, if I'm reading /usr/share/initramfs-tools/hooks/lvm2 (installed with lvm2 on the livecd-booted system, not present on the installed one) correctly, an lvm executable should be situated in /sbin; that is not the case. What's the best way to remedy this situation? I realize that it would be easier to just use the alternate install CD, which apparently supports LVM, but I don't want to wait for it to download and then have to reinstall.

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• How to structure a XML-based order form using ASP.NET

  - by Brendan

  First question here; please help me if I'm doing something wrong. I'm a graphic designer who's trying to teach himself ASP.NET/C#. My server-side background is PHP/WordPress and some ASP Classic, and when I do code I've hand-coded just about everything since I started learning HTML. So, as I've started to learn .NET, my code has been very manual and procedural. I'm now trying to create a really basic order form that pulls from an XML file to populate the form; there's an image, a title, a price, and selectable quantities. If I was making this form as a static HTML file, I'd have each field named manually and so on postback I could query each field to get the values. But I'm trying to do this dynamically so that I can add/remove items from the form and not have to change the code. In terms of displaying the XML, I rolled my own by loading XmlDocument and using XmlNodeList and a bunch of foreach loops to get things displayed. Then, I learned about <asp:XmlDataSource> and <asp:Repeater>, which made displaying the XML simpler by a large margin. However, I've had a really hard time getting the data that's been submitted on postback (it was implied on SO that there are better ways to get data than nested RepeaterItems). So, what I've learned so far is that you can do things a bunch of different ways in .NET. that's why I thought it'd be good to ask for answers regarding the best way to use ASP.NET to display a XML document and dynamically capture the data that's submitted. Any help is appreciated! I'm using Notepad++ to code .NET 2.0.

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• Implement Budget Allocation in DAX for Power Pivot and Tabular #powerpivot #tabular #ssas #dax

  - by Marco Russo (SQLBI)

  Comparing sales and budget, or costs and budget, is a very common operation. However, it is often the case that you have different granularities for different tables containing budget and the data to compare with. There are two ways to do that: you can limit the comparison to the granularity that is common to the two tables, or you can allocate the budget where it’s not defined. For example, if you have a budget defined by quarter and category, you might want to allocate it by month and product. In this way, you will do the comparison as you had a more granular definition of the budget, without actually having to do the manual job of allocating data (usually in an Excel worksheet!). If you want to do budget allocation in DAX, you can use the Budget Patterns we published on DAX Patterns. If you come from and MDX/OLAP background, at first you might find it hard to solve the problem of not having attribute hierarchies that helps you in propagating the budget values to lower hierarchical levels. However, I think that once you get used to DAX, you will find the behavior very predictable and easy to “debug” also for more complex allocation formula. You just have to be careful in writing the DAX formula, but probably the pattern we wrote should help you designing the right data model, without creating physical relationships to the budget table! This pattern is also based on the Handling Different Granularities scenario I discussed a couple of weeks ago.

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• Help with a simple incremental backup script

  - by Evan

  I'd like to run the following incomplete script weekly in as a cron job to backup my home directory to an external drive mounted as /mnt/backups #!/bin/bash # TIMEDATE=$(date +%b-%d-%Y-%k:%M) LASTBACKUP=pathToDirWithLastBackup rsync -avr --numeric-ids --link-dest=$LASTBACKUP /home/myfiles /mnt/backups/myfiles$TIMEDATE My first question is how do I correctly set LASTBACKUP to the the the directory in /backs most recently created? Secondly, I'm under the impression that using --link-desk will mean that files in previous backups will not will not copied in later backups if they still exist but will rather symbolically link back to the originally copied files? However, I don't want to retain old files forever. What would be the best way to remove all the backups before a certain date without losing files that may think linked in those backups by currents backups? Basically I'm looking to merge all the files before a certain date to a certain date if that makes more sense than the way I initially framed the question :). Can --link-dest create hard links, and if so, just deleting previous directories wouldn't actually remove linked file? Finally I'd like to add a line to my script that compresses each newly created backup folder (/mnt/backups/myfiles$TIMEDATE). Based on reading this question, I was wondering if I could just use this line gzip --rsyncable /backups/myfiles$TIMEDATE after I run rsync so that sequential rsync --link-dest executions would find already copied and compressed files? I know that's a lot, so many thanks in advance for your help!!

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• My software is hosted on a "bad" website. Can I do anything about it?

  - by Abluescarab

  The software I've created is hosted on what you could call a "bad" website. It's hard to explain, so I'll just provide an example. I've made a free password generator. This, along with most of my other FREE software, is available on this website. This is their description of my software: Platform: 7/7 x64/Windows 2K/XP/2003/Vista Size: 61.6 Mb License: Trial File Type: .7z Last Updated: June 4th, 2011, 15:38 UTC Avarage Download Speed: 6226 Kb/s Last Week Downloads: 476 Toatal Downloads: 24908 Not only is the size completely skewed, it is not trial software, it's free software. The thing is that it's not the description I'm worried about--it's the download links. The website is a scam website. They apparently link to "cracks" and "keygens", but not only is that in itself illegal, they actually link to fake download websites that give you viruses and charge your credit card. Just to list things that are wrong with this website: they claim all software is paid software then offer downloads for keygens and cracks; they fake all details about the program and any program reviews and ratings; they and the downloads site they link to are probably run by the same person, so they make money off of these lies. I'm only a teenager with no means to pursue legal action. This means that, unfortunately, I can't do anything that will actually get results. I'd like my software to only be downloaded off my personal website. I have links to four legitimate locations to download my software and that's it. Essentially, is there anything I can do about this? As I said above, I can't pursue legal action, but is there some way I can discourage traffic to that website by blacklisting it or something? Can I make a claim on MY website to only download my software from the links I provide? Or should I just pay no mind? Because, honestly, it's a bit of a ways back in Google results. Thank you ahead of time.

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• Pivotal Announces JSR-352 Compliance for Spring Batch

  - by reza_rahman

  Pivotal, the company currently funding development of the popular Spring Framework, recently announced JSR 352 (aka Batch Applications for the Java Platform) compliance for the Spring Batch project. More specifically, Spring Batch targets JSR-352 Java SE runtime compatibility rather than Java EE runtime compatibility. If you are surprised that APIs included in Java EE can pass TCKs targeted for Java SE, you should not be. Many other Java EE APIs target compatibility in Java SE environments such as JMS and JPA. You can read about Spring Batch's support for JSR-352 here as well as the Spring configuration to get JSR-352 working in Spring (typically a very low level implementation concern intended to be completely transparent to most JSR-352 users). JSR 352 is one of the few very encouraging cases of major active contribution to the Java EE standard from the Spring development team (the other major effort being Rod Johnson's co-leadership of JSR 330 along with Bob Lee). While IBM's Christopher Vignola led the spec and contributed IBM's years of highly mission critical batch processing experience from products like WebSphere Compute Grid and z/OS batch, the Spring team provided major influences to the API in particular for the chunk processing, listeners, splits and operational interfaces. The GlassFish team's own Mahesh Kannan also contributed, in particular by implementing much of the Java EE integration work for the reference implementation. This was an excellent example of multilateral engineering collaboration through the standards process. For many complex reasons it is not too hard to find evidence of less than amicable interaction between the Spring ecosystem and the Java EE standard over the years if one cares to dig deep enough. In reality most developers see Spring and Java EE as two sides of the same server-side Java coin. At the core Spring and Java EE ecosystems have always shared deep undercurrents of common user bases, bi-directional flows of ideas and perhaps genuine if not begrudging mutual respect. We can all hope for continued strength for both ecosystems and graceful high notes of collaboration via efforts like JSR 352.

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• Accessing and Updating Data in ASP.NET: Filtering Data Using a CheckBoxList

  Filtering Database Data with Parameters, an earlier installment in this article series, showed how to filter the data returned by ASP.NET's data source controls. In a nutshell, the data source controls can include parameterized queries whose parameter values are defined via parameter controls. For example, the SqlDataSource can include a parameterized SelectCommand, such as: SELECT * FROM Books WHERE Price > @Price. Here, @Price is a parameter; the value for a parameter can be defined declaratively using a parameter control. ASP.NET offers a variety of parameter controls, including ones that use hard-coded values, ones that retrieve values from the querystring, and ones that retrieve values from session, and others. Perhaps the most useful parameter control is the ControlParameter, which retrieves its value from a Web control on the page. Using the ControlParameter we can filter the data returned by the data source control based on the end user's input. While the ControlParameter works well with most types of Web controls, it does not work as expected with the CheckBoxList control. The ControlParameter is designed to retrieve a single property value from the specified Web control, but the CheckBoxList control does not have a property that returns all of the values of its selected items in a form that the CheckBoxList control can use. Moreover, if you are using the selected CheckBoxList items to query a database you'll quickly find that SQL does not offer out of the box functionality for filtering results based on a user-supplied list of filter criteria. The good news is that with a little bit of effort it is possible to filter data based on the end user's selections in a CheckBoxList control. This article starts with a look at how to get SQL to filter data based on a user-supplied, comma-delimited list of values. Next, it shows how to programmatically construct a comma-delimited list that represents the selected CheckBoxList values and pass that list into the SQL query. Finally, we'll explore creating a custom parameter control to handle this logic declaratively. Read on to learn more! Read More >

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• Windows 8, the biggest struggle&hellip;.

  - by Dennis Vroegop

  As always, it’s hard to be original. It’s easy to copy great stuff others have done but to think of something nice that others might have done is not trivial. The number of applications in the Windows 8 Store is growing rappidly. That was to be expected; a lot of developers already have the skills needed to build Win8 apps so all it took was some ideas. And they have ideas. Another factor that helps with the growing number of apps in the store is the availability of the project templates in Visual Studio 2012. When you start a new project you are given a ready to run sample that you can adapt to your needs. All the stuff needed to navigate through the app, to display data, to do semantic zoom, it’s all available. So what do we do? We tweak, change, adapt and modify these samples to fit our application. However, the underlying structure of the app remains the same. Somehow developers can’t seem to break free from the structure that the sample apps give you. Result: all apps looks alike. My tip for the day: take the samples and use them to learn. Don’t use them as a foundation of your app. Make you app different from those others and you’ll find you will have something special. I’m curious to see what you come up with!

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• Add a Search Box to the Drop-Down Tab List in Firefox

  - by Asian Angel

  Do you have a lot of tabs open no matter what time of day it is and find sorting through the tabs list frustrating? Then get control back with the List All Tabs Menu extension for Firefox. Before If you have a large number of tabs open using the “Tab List Menu” can start to become a little awkward. You can use your mouse’s middle button to scroll through the list or the tiny arrow button at the bottom but there needs to be a better way to deal with this. After Once you have installed the extension you will notice two differences in the “Tab List Menu”. There will be a search box available and a nice scrollbar for those really long lists. A closer look at the search box and scrollbar setup… Depending on your style you can use the scrollbar to look for a particular page or enter a search term and watch that list become extremely manageable. A closer look at our much shorter list after conducting a search. Definitely not hard to find what we were looking for at all. Conclusion If you are someone who has lots of tabs open at once throughout the day then the List All Tabs Menu extension might be the perfect tool to help you sort and manage those tabs. Links Download the List All Tabs Menu extension (Mozilla Add-ons) Similar Articles Productive Geek Tips Organize Your Firefox Search Engines Into FoldersAdd Search Forms to the Firefox Search BarGain Access to a Search Box in Google ChromeWhy Doesn’t Tab Work for Drop-down Controls in Firefox on OS X?Quick Tip: Spell Check Firefox Text Input Fields TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Stormpulse provides slick, real time weather data Geek Parents – Did you try Parental Controls in Windows 7? Change DNS servers on the fly with DNS Jumper Live PDF Searches PDF Files and Ebooks Converting Mp4 to Mp3 Easily Use Quick Translator to Translate Text in 50 Languages (Firefox)

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• hp pavilion g6 1250 with a BCM 4313 doesn't see any wireless networks

  - by Ahmed Kotb

  i have tried using ubuntu 10.04 and ubuntu 11.10 and both have the same problem the driver is detected by the additional propriety drivers wizard and after installation, ubuntu can't see except on wireless network which is not mine (and i can't connect to it as it is secured) There are plenty of wireless networks around me but ubuntu can't detect them and if i tried to connect to one of them as if it was hidden connection time out. the command lspci -nvn | grep -i net gives 04:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01) 05:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05) iwconfig gives lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=19 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off i guess it is something related to Broadcom driver .. but i don't know , any help will be appreciated UPDATE: ok i installed a new copy of 11.10 to remove the effect of any trials i have made i followed the link (http://askubuntu.com/q/67806) as suggested all what i have done now is trying the command lsmod | grep brc and it gave me the following brcmsmac 631693 0 brcmutil 17837 1 brcmsmac mac80211 310872 1 brcmsmac cfg80211 199587 2 brcmsmac,mac80211 crc_ccitt 12667 1 brcmsmac then i blacklisted all the other drivers as mentioned in the link the wireless is still disabled.. in the last installation installing the Brodcom STA driver form the additional drivers enabled the menu but as i have said before it wasn't able to connect or even get a list of available networks so what should i do now ? the output of command rfkill list all rfkill list all 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no

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• Time management and self improvement

  - by Filip

  I hope I can open a discussion on this topic as this is not a specific problem. It's a topic I hope to get some ideas on how people in similar situation as mine manage their time. OK, I'm a single developer on a software project for the last 6-8 months. The project I'm working on uses several technologies, mainly .net stuff: WPF, WF, NHibernate, WCF, MySql and other third party SDKs relevant for the project nature. My experience and knowledge vary, for example I have a lot of experience in WPF but much less in WCF. I work full time on the project and im curios on how other programmers which need to multi task in many areas manage their time. I'm a very applied type of person and prefer to code instead of doing research. I feel that doing research "might" slow down the progress of the project while I recognize that research and learning more in areas which I'm not so strong will ultimately make me more productive. How would you split up your daily time in productive coding time and time to and experiment, read blogs, go through tutorials etc. I would say that Im coding about 90%+ of my day and devoting some but very little time in research and acquiring new knowledge. Thanks for your replies. I think I will adopt a gradual transition to Dominics block parts. I kinda knew that coding was taking up way to much of my time but it feels good having a first version of the project completed and ready. With a few months of focused hard work behind me I hope to get more time to experiment and expand my knowlegde. Now I only hope my boss will cut me some slack and stop pressuring me for features...

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• The Eight Most-Important EBS Techstack Stories in 2010

  - by Steven Chan

  I've never really understood the custom of stuffing a summary of one's family's activities for the year in a Christmas/Hanukkah/Kwanzaa card.  It seems a little self-congratulatory and impersonal.  I'd rather my friends kept authentically in touch throughout the year, but perhaps that's just me.Nonetheless, I see the value of a year-end summary in the IT industry.  I spend a lot of time helping our customers understand the latest new developments... and straightening out confusion over changes to the old and familiar.  It can be hard to keep up with the latest news in this space.Here are the eight most-important news items for 2010, with suggested actions for Apps DBAs:Premier Support for EBS 11.5.10 ended on November 30, 2010You need to be on a minimum baseline of 11.5.10 patches to be eligible for Extended Support.  New patches for EBS 11i released during the Extended Support period will be produced only for the minimum baseline configuration.Action: Ensure that your EBS 11i environments meet the minimum baseline requirements. Minimum Baselines are Emerging for EBS 12.0 Extended SupportExtended Support for EBS 12.0 begins on February 1, 2012.  That's only 13 months away.  Minimum baselines haven't been finalized yet, but the 12.0.6 Release Update Pack and the Financials CPC July 2009 are currently slated.  Action: Ensure that your EBS 12.0 environments meet the currently-specified baseline requirements. Sun, Windows, and Linux users should have upgraded to JDK 6 by nowJDK 5's End of Service Life was October 30, 2009 for those three platforms.  If you're running the E-Business Suite on Sun, Windows, or Linux, you should upgrade your EBS servers to JDK 6.  Alternatively, you can purchase Java for Business support (the equivalent of Extended Support for Java). Action: Upgrade your Sun, Windows, or Linux EBS servers to JDK 6. Premier Support for Database 10gR2 ended on July 31, 2010The 10gR2 Database is now in Extended Support.  If you're still on 10gR2, you should start planning your upgrade to a higher certified database version such as 11gR2 11.2.0.2.Action: Upgrade to 10gR2 databases to 11gR2 11.2.0.2. 

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• Aging vs. Coding Skills

  - by Renan Malke Stigliani

  A little background, since it can be part of my point fo view. I'm a C#/Java programmer with age of 23, coding since my 18's. I started studying C and working with Cobol, and after 1 year I quickly moved to C#/Java Web Development, and have worked with it in about 3/4 companies. (I've just moved again) In my (brief) professional career I encountered some older programmers, all the times it was very hard to work with them, since I was way better programmer than they. And it is not about just the language skills, some of them had seriously problems understanding basic logic. Now I wonder how theese programmer get jobs on the market since (I imagine) they have more expenses, and thus have to make more money, and are really counter-productives. In theese examples, others project member have to constantly keep stoping for helping them out. All the times, they eventually quit... So I wonder... May the aging process slow down the learning rate and logic thinking? Does the programmer has to, or at least should, move to a management area before getting old? Please, my intention is not to be disrespectful with older persons. I am fully aware that this is NOT the case of all older programmers, I often see around very good old programmers on the net, I just never met them for close.

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• Leaving Microsoft

  - by Stephen Walther

  After two and a half years working with the ASP.NET team, I’ve decided that this is the right time to leave Microsoft and, with the help of some friends, re-launch my ASP.NET training and consulting company. The company has the modest name Superexpert. While working on my Ph.D. at MIT, I was surrounded by professors and students who were passionate about knowledge. During the Internet boom, I was lucky enough to work side-by-side with some very smart and hard-working people to create several successful startups. However, the people I worked with at Microsoft were among the smartest and hardest working. Microsoft hires a small number of people and gives them huge responsibilities. It continues to amaze me that so few people work on the ASP.NET team when you consider how much the team produces. I had the opportunity to work with a number of inspiring people at Microsoft. I’ll miss working with Scott Hunter, Dave Reed, Boris Moore, Eilon Lipton, Scott Guthrie, James Senior, Jim Wang, Phil Haack, Damian Edwards, Vishal Joshi, Mike Pope, Jon Young, Dmitry Robsman, Simon Calvert, Stefan Schackow, and many others. I’m proud of what we accomplished while I was working at Microsoft. We reached out to the jQuery team and changed direction from Microsoft Ajax to jQuery. We successfully contributed several important new features to the open-source jQuery project including jQuery Templates, jQuery Data-Linking, jQuery Globalization, and (as John Resig announced at the last jQuery conference) jQuery Require. I’m looking forward to returning to training and consulting. We want to focus on providing consulting on the “right way” of building ASP.NET websites, which we call Modern ASP.NET applications. By Modern ASP.NET applications, I mean applications built with ASP.NET MVC, jQuery, HTML5, and Visual Studio ALM. Additionally, we want to help companies that have existing ASP.NET Web Forms applications migrate to ASP.NET MVC. If you are interested in having us provide training for your company or you need help building a custom ASP.NET application then please contact us at [email protected] or visit our website at Superexpert.com.

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• How to write PowerShell code part 1 (Using external xml configuration file)

  - by ybbest

  In this post, I will show you how to use external xml file with PowerShell. The advantage for doing so is that you can avoid other people to open up your PowerShell code to make the configuration changes; instead all they need to do is to change the xml file. I will refactor my site creation script as an example; you can download the script here and refactored code here. 1. As you can see below, I hard code all the variables in the script itself. $url = "http://ybbest" $WebsiteName = "Ybbest" $WebsiteDesc = "Ybbest test site" $Template = "STS#0" $PrimaryLogin = "contoso\administrator" $PrimaryDisplay = "administrator" $PrimaryEmail = "[email protected]" $MembersGroup = "$WebsiteName Members" $ViewersGroup = "$WebsiteName Viewers" 2. Next, I will show you how to manipulate xml file using PowerShell. You can use the get-content to grab the content of the file. [xml] $xmlconfigurations=get-content .\SiteCollection.xml 3. Then you can set it to variable (the variable has to be typed [xml] after that you can read the content of the xml content, PowerShell also give you nice IntelliSense by press the Tab key. [xml] $xmlconfigurations=get-content .\SiteCollection.xml $xmlconfigurations.SiteCollection $xmlconfigurations.SiteCollection.SiteName 4. After refactoring my code, I can set the variables using the xml file as below. #Set the parameters $siteInformation=$xmlinput.SiteCollection $url = $siteInformation.URL $siteName = $siteInformation.SiteName $siteDesc = $siteInformation.SiteDescription $Template = $siteInformation.SiteTemplate $PrimaryLogin = $siteInformation.PrimaryLogin $PrimaryDisplay = $siteInformation.PrimaryDisplayName $PrimaryEmail = $siteInformation.PrimaryLoginEmail $MembersGroup = "$WebsiteName Members" $ViewersGroup = "$WebsiteName Viewers"

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• Keyboard locking up in Visual Studio 2010

  - by Jim Wang

  One of the initiatives I’m involved with on the ASP.NET and Visual Studio teams is the Tactical Test Team (TTT), which is a group of testers who dedicate a portion of their time to roaming around and testing different parts of the product.  What this generally translates to is a day and a bit a week helping out with areas of the product that have been flagged as risky, or tackling problems that span both ASP.NET and Visual Studio.  There is also a separate component of this effort outside of TTT which is to help with customer scenarios and design. I enjoy being on TTT because it allows me the opportunity to look at the entire product and gain expertise in a wide range of areas.  This week, I’m looking at Visual Studio 2010 performance problems, and this gem with the keyboard in Visual Studio locking up ended up catching my attention. First of all, here’s a link to one of the many Connect bugs describing the problem: Microsoft Connect I like this problem because it really highlights the challenges of reproducing customer bugs.  There aren’t any clear steps provided here, and I don’t know a lot about your environment: not just the basics like our OS version, but also what third party plug-ins or antivirus software you might be running that might contribute to the problem.  In this case, my gut tells me that there is more than one bug here, just by the sheer volume of reports.  Here’s another thread where users talk about it: Microsoft Connect The volume and different configurations are staggering.  From a customer perspective, this is a very clear cut case of basic functionality not working in the product, but from our perspective, it’s hard to find something reproducible: even customers don’t quite agree on what causes the problem (installing ReSharper seems to cause a problem…or does it?). So this then, is the start of a QA investigation. If anybody has isolated repro steps (just comment on this post) that they can provide this will immensely help us nail down the issue(s), but I’ll be doing a multi-part series on my progress and methodologies as I look into the problem.

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• Iterative Conversion

  - by stuart ramage

  Question Received: I am toying with the idea of migrating the current information first and the remainder of the history at a later date. I have heard that the conversion tool copes with this, but haven't found any information on how it does. Answer: The Toolkit will support iterative conversions as long as the original master data key tables (the CK_* tables) are not cleared down from Staging (the already converted Transactional Data would need to be cleared down) and the Production instance being migrated into is actually Production (we have migrated into a pre-prod instance in the past and then unloaded this and loaded it into the real PROD instance, but this will not work for your situation. You need to be migrating directly into your intended environment). In this case the migration tool will still know all about the original keys and the generated keys for the primary objects (Account, SA, etc.) and as such it will be able to link the data converted as part of a second pass onto these entities. It should be noted that this may result in the original opening balances potentially being displayed with an incorrect value (if we are talking about Financial Transactions) and also that care will have to be taken to ensure that all related objects are aligned (eg. A Bill must have a set to bill segments, meter reads and a financial transactions, and these entities cannot exist independantly). It should also be noted that subsequent runs of the conversion tool would need to be 'trimmed' to ensure that they are only doing work on the objects affected. You would not want to revalidate and migrate all Person, Account, SA, SA/SP, SP and Premise details since this information has already been processed, but you would definitely want to run the affected transactional record validation and keygen processes. There is no real "hard-and-fast" rule around this processing since is it specific to each implmentations needs, but the majority of the effort required should be detailed in the Conversion Tool section of the online help (under Adminstration/ The Conversion Tool). The major rule is to ensure that you only run the steps and validation/keygen steps that you need and do not do a complete rerun for your subsequent conversion.

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• Comparison between Cocos2d and Corona

  - by dontangg

  I'm having a really hard time deciding which way to go on this. I'm about to start developing a game and I haven't been able to find many good comparisons between these approaches. I don't have many requirements for the game yet, but here is what I do know. needs to work on iPhone I don't have much money ($400 for Unity for iPhone is probably too much. I can probably afford $99 for Corona.) Graphics will be 2D Physics support is not needed Ability to use particles would be nice Game Center support would be nice (Corona is planning to support it soon) It would be nice to be able to support Android as well if it isn't much effort. I have done my own research, so I know basic things about them. I know Corona uses Lua and Cocos2D uses Objective C. I know that Corona allows deployment to iPhone and Android, but how easy is it? Cocos2D is free, but so many people talk about how easy it is to use Corona, but I don't like being restricted to features Corona supports or the price tag. I feel so torn here.

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