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• Developing a Support Plan for Cloud Applications

  - by BuckWoody

  Last week I blogged about developing a High-Availability plan. The specifics of a given plan aren't as simple as "Step 1, then Step 2" because in a hybrid environment (which most of us have) the situation changes the requirements. There are those that look for simple "template" solutions, but unless you settle on a single vendor and a single way of doing things, that's not really viable. The same holds true for support. As I've mentioned before, I'm not fond of the term "cloud", and would rather use the tem "Distributed Computing". That being said, more people understand the former, so I'll just use that for now. What I mean by Distributed Computing is leveraging another system or setup to perform all or some of a computing function. If this definition holds true, then you're essentially creating a partnership with a vendor to run some of your IT - whether that be IaaS, PaaS or SaaS, or more often, a mix. In your on-premises systems, you're the first and sometimes only line of support. That changes when you bring in a Cloud vendor. For Windows Azure, we have plans for support that you can pay for if you like. http://www.windowsazure.com/en-us/support/plans/ You're not off the hook entirely, however. You still need to create a plan to support your users in their applications, especially for the parts you control. The last thing they want to hear is "That's vendor X's problem - you'll have to call them." I find that this is often the last thing the architects think about in a solution. It's fine to put off the support question prior to deployment, but I would hold off on calling it "production" until you have that plan in place. There are lots of examples, like this one: http://www.va-interactive.com/inbusiness/editorial/sales/ibt/customer.html some of which are technology-specific. Once again, this is an "it depends" kind of approach. While it would be nice if there was just something in a box we could buy, it just doesn't work that way in a hybrid system. You have to know your options and apply them appropriately.

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• Phone number mask in a DataView WebPart (DVWP)

  - by PeterBrunone

  This came up today on the [sharepointdiscussions] list.  A user needed to display a read-only field in a phone number format; it's pretty simple, but it may be just what you need.Assuming your list item contains a field called "Phone Number" (with a space), the following XPath will give you a number in the classic US telephone format: <xsl:value-of select="concat('(',substring(@Phone_x0020_Number,1,3),')',substring(@Phone_x0020_Number,4,3),'-',substring(@Phone_x0020_Number,7,4))" /> If you need to mask an input, try this jQuery solution.

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• PHP - Internal APIs/Libraries - What makes sense?

  - by Mark Locker

  I've been having a discussion lately with some colleagues about the best way to approach a new project, and thought it'd be interesting to get some external thoughts thrown into the mix. Basically, we're redeveloping a fairly large site (written in PHP) and have differing opinions on how the platform should be setup. Requirements: The platform will need to support multiple internal websites, as well as external (non-PHP) projects which at the moment consist of a mobile app and a toolbar. We have no plans/need in the foreseeable future to open up an API externally (for use in products other than our own). My opinion: We should have a library of well documented native model classes which can be shared between projects. These models will represent everything in our database and can take advantage of object orientated features such as inheritance, traits, magic methods, etc. etc. As well as employing ORM. We can then add an API layer on top of these models which can basically accept requests and route them to the appropriate methods, translating the response so that it can be used platform independently. This routing for each method can be setup as and when it's required. Their opinion: We should have a single HTTP API which is used by all projects (internal PHP ones or otherwise). My thoughts: To me, there are a number of issues with using the sole HTTP API approach: It will be very expensive performance wise. One page request will result in several additional http requests (which although local, are still ones that Apache will need to handle). You'll lose all of the best features PHP has for OO development. From simple inheritance, to employing the likes of ORM which can save you writing a lot of code. For internal projects, the actual process makes me cringe. To get a users name, for example, a request would go out of our box, over the LAN, back in, then run through a script which calls a method, JSON encodes the output and feeds that back. That would then need to be JSON decoded, and be presented as an array ready to use. Working with arrays, as appose to objects, makes me sad in a modern PHP framework. Their thoughts (and my responses): Having one method of doing thing keeps things simple. - You'd only do things differently if you were using a different language anyway. It will become robust. - Seeing as the API will run off the library of models, I think my option would be just as robust. What do you think? I'd be really interested to hear the thoughts of others on this, especially as opinions on both sides are not founded on any past experience.

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• Ubuntu worldtime desktop clock widget?

  - by ubuntico

  I am aware that in Unity we can add world time by clicking on time bar. However, it's still a list of locations and sometimes it may be hard to quickly find the timezone of interest. Is there any tool which can put a multiple clock instances on the desktop representing each timezone of interest? Similar to the clock in Windows 7. To be more clear, I am not looking for a weather widget, but a simple clock widget so that I can track time in different timezones.

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• Google a supprimé le volant sur son prototype de voiture autonome à cause de la nature paresseuse de l'être humain

  La nature paresseuse de l'être humain à l'origine du nouveau prototype de voiture autonome Google Dépourvue de commandes de conduites, le conducteur se transforme en un simple passagerAprès avoir récemment présenté son nouveau prototype de voiture autonome, Google a présenté ses spécificités et a expliqué la nouvelle approche qui sera utilisée par ses voitures autonomes.Pour rappel, le nouveau prototype de Google est une voiture semblable à une Fiat500 capable de transporter deux personnes à une...

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• Android Array Lag?

  - by Mike

  I am making a platform game for Android. It is sort of a tile based game. I added bullets and enemies with AI and a bunch of tile types. I created a simple map with no Enemies. Everything was running well and smooth until I shot a bunch of bullets randomly everywhere. A couple of hundreds of bullets later, the FPS lowered. I made a test to find out if the bullets were the problem so I made another simple map with just a tile to stand on and left it for a while. Minutes later, I played around with it a bit to check if the FPS changed and it didnt. I reloaded the same map and shot a lot of bullets. Minutes later, the FPS was visibly lower even after the number of bullets were zero. Points to note: Programmed FPS is 30 Tested on a Samsung Galaxy Y and Samsung Galaxy W Any tile, enemy, bullet that is off screen is not drawn to prevent lag Bullets collide with Tiles (if they dont collide with in 450 frames, they are removed from the array) I used List bullets = new ListArray(); I used bullets.add(new Bullet(x, y, params...)); I used for(...){ if(...){ bullets.remove(i); } } Code for bullet: private void drawBullets(Canvas canvas) { for (int i = 0; i < bullets.size(); i++) { Bullet b = bullets.get(i); b.update(canvas); //updates physics if (b.t > blm) { //if the bullet is past its expiry bullets.remove(i); i--; } else { if (svx((b.x)) > 0 && svx(b.x) < width && svy((b.y)) > 0 && svy(b.y) < height) { // if bullet is not off screen b.draw(canvas); // draw the bullet } } } } I tried searching for solutions and references but I have no luck. I'm guessing that the lag has something to do with the Array and the Bullets or Classes that I've loaded? I'm not sure! Someone please help! Thanks in advance! :)

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• Should I disallow(robots.txt) archive/author pages with links already available on the front page? [on hold]

  - by WPRookie82

  I am working on a simple Wordpress blog where when an article is published, it appears on ALL these pages: Homepage - Headline(clickable) + 3-line summary Parent category page - Headline(clickable) + 3-line summary Child category page - Headline(clickable) + 3-line summary Author page - Headline(clickable) sitemap.xml I've been told that I should add all author pages to my robots.txt, under disallow, so as search engine bots do not spider /author/* since all links on these pages are available elsewhere. Is this a good approach or maybe rel=nofollow is better, or maybe I shouldn't worry about this at all?

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• OSB unit testing, part 1 by Qualogy

  - by JuergenKress

  First you need to implement the simple bpel process like this : In my current project, I inherited a lot of OSB components that have been developed by (former) team members, but they all lack unit tests. This is a situation I really dislike, since this makes it much harder to refactor or bug-fix the existing code base. So, for all newly created components (and components I have to bug-fix) I strive to add unit tests. Of course, the unit tests will be created using my favourite testing tool: soapUI ! Unit of test The unit test should be created for the service composition, which in OSB terms should be the proxy service combination with its business service. Now, since you do not want to rely on any other services, you should provide mock services for all services invoked from your Component-Under-Test. In a previous article, I wrote about mocking your services in soapUI. While this approach would also be valid here, creating a mock service (and certainly deploying it on a separate WebServer) does violate one of the core principles of unit testing: to make your unit tests as self-contained as possible, i.e. not depending on any external components. In this article, I will show you how to achieve this by simply providing a mock response inside your unit test. Scenario The scenario I implement for testing is a simple currency converter; the external request consists of a from and a to currency, and an amount (in currency from). The service will perform an exchange rate lookup using the WebServiceX CurrencyConverter and return a response to the caller consisting of both the source and target currencies and amounts. For the purpose of unit testing, I will implement a mock response for the exchange rate lookup. Read the complete article here. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Technorati Tags: Qualogy,OSB,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• Database Deployment Cribsheet

  As part of Simple-Talk's long-running Cribsheet series, they asked William Brewer to write a guide to deployment that described in general terms what is involved in the deployment of a database application, and the sort of issues you're likely to come up against. Top 5 hard-earned lessons of a DBAIn part one, read about ‘The Case of the Missing Index’ and learn from the experience of The DBA Team. Read now.

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• Service Bus random thought for the day

  - by Michael Stephenson

  Its been really nice to see that over the last few weeks since we implemented our Dynamics CRM connecting via Azure Service Bus to backend line of business applications solution how much interest this has sparked within the rest of the organisation and other subsiduaries and how many people are coming up with ideas elsewhere on how they can leverage what we did and how simple it could be to connect their applications to the cloud. Im currently working with one of these companies and its refreshing to see how much interest can be spread by a good success story.

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• What's the simplest way to create a page with dynamic elements?

  - by ElendilTheTall

  I'm developing a site, part of which lists training courses with dates and prices. Every year the dates and prices change, which would mean loads of manual code editing to update the pages. What I'd like to do is have a database containing the relevant information, which the course pages then reference, so we can just update the database rather than the HTML. My experience lies in static design - so, what is a simple way to achieve this?

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• Website - 5 Mistakes to Avoid

  Usually, the first thing new internet marketers think of is having their own website to sell their products and communicate with visitors. Here are five simple mistakes to avoid.

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• windows azure thoughts.

  - by foxjazz

  Well I had a relatively unpleasant exprience with Microsoft's new offerings when it comes to azure.And of course they deleted the forum trail.They don't want the consumer as a customer, expect to pay $200 - $250 or more a year for azure and that doesn't include a good email solution. This is for the smallest slice offering.If you want a simple website solution 1and1.com isn't a bad choice and it's less than $50 a year.

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• Analyze Your SEO Competition

  It is vital to analyze your Search Engine Optimization or SEO competition as part of running any business. With your online business technology has made it a relatively simple task, but it is essential to verify regularly where you stand against your competition.

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• Basic modelling of radar

  - by Hawk66

  I'm currently researching how to model/simulate radar for my naval simulation. Since the emphasis is on modelling ASW or submarines in general, I need only a basic radar model - at least for the beginning. So, does anybody know a resource for such a simple model? The model should take signal strength of the sensor, the size of the target and the terrain (height/ground clutter) into account. Thanks.

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• Model format for small game

  - by DeadMG

  I'm writing my own small-time game from scratch, and now I'm looking to start creating models. I've been wondering- what is the best model format to use? Given that I will be writing the model loading code myself and using whatever program generates them. Ideally, I'd look for a format that has fairly wide support between modelling programs, so I can pick the one I like most to actually perform the building, and the format itself would be relatively simple to load, rather than having all of the latest features.

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• Organization &amp; Architecture UNISA Studies &ndash; Chap 13

  - by MarkPearl

  Learning Outcomes Explain the advantages of using a large number of registers Discuss the way in which compilers optimize register usage Discuss the evolution of CISC machines Describe the characteristics of RISC architecture Discuss the RISC vs. CISC controversy Describe the way in which RISC and CISC design principles can be combined Instruction Execution Characteristics To understand the the line of reasoning of RISC advocates, we need a brief overview of instruction execution characteristics. These include… Operations Operands Procedure Calls These three sections can be studied in depth in the textbook at pages 503 - 505 A number of groups have come up with the conclusion that the attempt to make the instruction set architecture closer to HLLs (High Level Languages) is not the most effective design strategy. Rather HLL’s can be best supported by optimizing performance of the most time-consuming features of typical HLL programs. Generally 3 main characteristics came up to improve performance… Use a large number of registers or use a compiler to optimize register usage Careful attention needs to be paid to the design of instruction pipelines A simplified (reduced) instruction set is indicated The use of a large register optimization One of the most important design principles of RISC machines is the use of a large number of registers. The concept of register windows and the use of a large register file versus the use of cache memory are discussed. On the face of it, the use of a large set of registers should decrease the need to access memory. The design task is to organize the registers in such a fashion that this goal is realized. Read page 507 – 510 for a detailed explanation. Compiler-based register optimization   Reduced Instructions Set Architecture There are two advantages to smaller programs… Because the program takes up less memory, there is a savings in that resource (this was more compelling when memory was more expensive) Smaller programs should improve performance, and this will happen in two ways – fewer instructions means fewer instruction bytes to be fetched and in a paging environment smaller programs occupy fewer pages, reducing page faults. Certain characteristics are common to RISC processors… One instruction per cycle Register-to-register operations Simple addressing modes Simple instruction formats RISC vs. CISC After initial enthusiasm for RISC machines, there has been a growing realization that RISC designs may benefit from the inclusion of some CISC features CISC designs may benefit from the inclusion of some RISC features

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• How to Make East Money Online Using Basic SEO - Part 1

  Understanding the power of SEO and how Google determines which sites gets ranked on the search engines is paramount in boosting revenue in your business. We will show you some simple secrets that can help make you easy money online using SEO.

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• How does the Ubuntu upgrade process work?

  - by IDWMaster

  How does Ubuntu upgrade seamlessly to a newer distribution, while the operating system is still running? I'm upgrading from 10.10 to 11.04, and I've upgraded several times before, and it's as simple as running update-manager -d and downloading and installing them, then rebooting. How exactly does this work though? How is the upgrade manager able to update the operating system while it is still in use?

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• Management - Level 9 in the Stairway to Reporting Services

  In the last article of the series, you will learn how to manage your reports once you've finished development, including how to use the Report Manager, deploy reports, and send reports to the appropriate end users. New! SQL Monitor 3.0 Red Gate's multi-server performance monitoring and alerting tool gets results from Day One.Simple to install and easy to use – download a free trial today.

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• Why Pay Someone to Do What You Can Easily Do Yourself?

  When SEO first became something that had to be done to your website in order to get ranked high enough to get traffic, it was something very few people knew anything at all about. Today, all that has changed, and it is no longer something that only gurus know about. SEO has come to be just one more simple task that can be done in house.

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• Work around for calculating age using the SQL Server DateDiff function

  Have you ever wanted to compute age, but the results from the DATEDIFF function seemed to be wrong some of the time? This tip covers why the DATEDIFF function does not always reliably compute age. New! SQL Monitor 3.0 Red Gate's multi-server performance monitoring and alerting tool gets results from Day One.Simple to install and easy to use – download a free trial today.

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• Expose Parallelism by Avoiding or Removing Artificial Dependencies

  Many applications and algorithms contain serial optimizations that inadvertently introduce data dependencies and inhibit parallelism. One can often remove such dependences through simple transforms, or even avoid them altogether through techniques such as domain decomposition or blocking.

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• Are there any good Java/JVM libraries for my Expression Tree architecture?

  - by Snuggy

  My team and I are developing an enterprise-level application and I have devised an architecture for it that's best described as an "Expression Tree". The basic idea is that the leaf nodes of the tree are very simple expressions (perhaps simple values or strings). Nodes closer to the trunk will get more and more complex, taking the simpler nodes as their inputs and returning more complex results for their parents. Looking at it the other way, the application performs some task, and for this it creates a root expression. The root expression divides its input into smaller units and creates child expressions, which when evaluated it can use to build it's own result. The subdividing process continues until the simplest leaf nodes. There are two very important aspects of this architecture: It must be possible to manipulate nodes of the tree after it is built. The nodes may be given new input values to work with and any change in result for that node needs to be propagated back up the tree to the root node. The application must make best use of available processors and ultimately be scalable to other computers in a grid or in the cloud. Nodes in the tree will often be updating concurrently and notifying other interested nodes in the tree when they get a new value. Unfortunately, I'm not at liberty to discuss my actual application, but to aid understanding a little bit, you might imagine a kind of spreadsheet application being implemented with a similar architecture, where changes to cells in the table are propagated all over the place to other cells that need the result. The spreadsheet could get so massive that applying multi-core multi-computer distributed system to solve it would be of benefit. I've got my prototype "Expression Engine" working nicely on a single multi-core PC but I've started to run into a few concurrency issues (as expected because I haven't been taking too much care so far) so it's now time to start thinking about migrating the Engine to a more robust library, and that leads to a number of related questions: Is there any precedent for my "Expression Tree" architecture that I could research? What programming concepts should I consider. I realise this approach has many similarities to a functional programming style, and I'm already aware of the concepts of using futures and actors. Are there any others? Are there any languages or libraries that I should study? This question is inspired by my accidental discovery of Scala and the Akka library (which has good support for Actors, Futures, Distributed workloads etc.) and I'm wondering if there is anything else I should be looking at as well?

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• SEO Techniques For Your Website

  Search Engine Optimization has turned out to be a hot topic in recent times. This is an ideal way to give your website a high page rank. There are innumerable companies that aim to do SEO. There are some simple things that you need to take into consideration when it comes to constructing your website that help in increasing your chances of getting web traffic. These are some of them.

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