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  • Boost Mersenne Twister: how to seed with more than one value?

    - by Eamon Nerbonne
    I'm using the boost mt19937 implementation for a simulation. The simulation needs to be reproducible, and that means storing and potentially reusing the RNG seeds later. I'm using the windows crypto api to generate the seed values because I need an external source for the seeds and not because of any particular guarantees of randomness. The output of any simulation run will have a note including the RNG seed - so the seed needs to be reasonably short. On the other hand, as part of the analysis of the simulation, I'll be comparing several runs - but to be sure that these runs are actually different, I'll need to use different seeds - so the seed needs to be long enough to avoid accidental collisions. I've determined that 64-bits of seeding should suffice; the chance of a collision will reach 50% after about 2^32 runs - that probability is low enough that the average error caused by it is negligible to me. Using just 32-bits of seed is tricky; the chance of a collision reaches 50% already after 2^16 runs; and that's a little too likely for my tastes. Unfortunately, the boost implementation either seeds with a full state vector - which is far, far too long - or a single 32-bit unsigned long - which isn't ideal. How can I seed the generator with more than 32-bits but less than a full state vector? I tried just padding the vector or repeating the seeds to fill the state vector, but even a cursory glance at the results shows that that generates poor results.

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  • Unknown Exception on trying to initialize the web service stub created by Axis C++

    - by Harsha Reddy
    Hi, I am trying out the sample calculator program given in the folder of axis c++. I am mainly interested in the client side. So I used the wsdl to create the stubs and my main is pretty much the same as given in the sample. However on executing the call Calculator ws (endpoint) I get an unknown exception "First-chance exception at 0x7c0024b9 in CalculatorClient.exe: 0xC0000005: Access violation reading location 0x00000000. First-chance exception at 0x7c812afb in CalculatorClient.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000.. Unhandled exception at 0x7c0024b9 in CalculatorClient.exe: 0xC0000005: Access violation reading location 0x00000000." and the exception causing code is Calculator::Calculator(const char* pchEndpointUri, AXIS_PROTOCOL_TYPE eProtocol) :Stub(pchEndpointUri, eProtocol) { } I had earlier tried to run a a webservice using Axis C++ but had received the same error. At that time my web service was a java ws on WAS. Then I later tried the calculator client (but this time I did not have any server hosting the ws as I just wanted to check if the Client could initialize). Is the problem caused due to the web service not being hosted on Apache in C++ (though I highly doubt it). Any help would be appreciated. Thanks, Harsha

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  • Newbie question: How do you layout an icon, 2 text lines and a button?

    - by Keith Barrows
    I am trying to extend a sample I found at http://developer.android.com/resources/articles/layout-tricks-efficiency.html. I am a brand new MonoDroid developer, just installed it yesterday, and trying to jump right into UI design and so far it is not clicking for me completely. I have this main.xml: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="?android:attr/listPreferredItemHeight" android:padding="6dip"> <ImageView android:id="@+id/icon" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_alignParentTop="true" android:layout_alignParentBottom="true" android:layout_marginRight="6dip" android:src="@drawable/icon" /> <TextView android:id="@+id/secondLine" android:layout_width="200dip" android:layout_height="26dip" android:layout_toRightOf="@id/icon" android:layout_alignParentBottom="true" android:layout_alignParentRight="true" android:singleLine="true" android:ellipsize="marquee" android:text="Second line which is a long line of text and needs to scroll" /> <TextView android:id="@+id/firstLine" android:layout_width="200dip" android:layout_height="wrap_content" android:layout_toRightOf="@id/icon" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:layout_above="@id/secondLine" android:layout_alignWithParentIfMissing="true" android:singleLine="true" android:ellipsize="marquee" android:gravity="center_vertical" android:text="First line" /> <Button android:id="@+id/logonButton" android:layout_width="50dip" android:layout_height="wrap_content" android:layout_toRightOf="@id/secondLine" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:gravity="center_vertical" android:text="Login" /> /> </RelativeLayout> What I am trying to do is have an icon on the left, 2 lines of text stacked in the middle and a button on the right. When I run this in my emulator I am seeing: The second line is not scrolling. The button does not show up. Is there by any chance a simple WYSIWYG editor for layout? Or is there an app to give me a quick view of my layout XML? Something like FireBug in FireFox would be fine. Barring the slim chance there are UI helpers for Droid, what am I doing wrong? :)

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  • How can I make an even more random number in ActionScript 2.0

    - by Theo
    I write a piece of software that runs inside banner ads which generates millions of session IDs every day. For a long time I've known that the random number generator in Flash is't random enough to generate sufficiently unique IDs, so I've employed a number of tricks to get even more random numbers. However, in ActionScript 2.0 it's not easy, and I'm seeing more and more collisions, so I wonder if there is something I've overlooked. As far as I can tell the problem with Math.random() is that it's seeded by the system time, and when you have sufficient numbers of simultaneous attempts you're bound to see collisions. In ActionScript 3.0 I use the System.totalMemory, but there's no equivalent in ActionScript 2.0. AS3 also has Font.enumerateFonts, and a few other things that are different from system to system. On the server side I also add the IP address to the session ID, but even that isn't enough (for example, many large companies use a single proxy server and that means that thousands of people all have the same IP -- and since they tend to look at the same sites, with the same ads, roughly at the same time, there are many session ID collisions). What I need isn't something perfectly random, just something that is random enough to dilute the randomness I get from Math.random(). Think of it this way: there is a certain chance that two people will generate the same random number sequence using only Math.random(), but the chance of two people generating the same sequence and having, say, the exact same list of fonts is significantly lower. I cannot rely on having sufficient script access to use ExternalInterface to get hold of things like the user agent, or the URL of the page. I don't need suggestions of how to do it in AS3, or any other system, only AS2 -- using only what's available in the standard APIs. The best I've come up with so far is to use the list of microphones (Microphone.names), but I've also tried to make some fingerprinting using some of the properties in System.capabilities, I'm not sure how much randomness I can get out of that though so I'm not using that at the moment. I hope I've overlooked something.

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  • How can we best represent the SDLC process as a board game?

    - by Innogetics
    I recently got interested in financial board games and saw how they can be very useful in educating children about certain concepts. It got me thinking whether it was also possible to represent certain aspects of executing a software project via a boardgame and make it fun. Here are a few things that I have come up so far: human resources and tools / techniques are represented as cards. requirements are also represented as cards, which are dealt equally to each player, and the objective is to move all requirement cards through an "SDLC" board (one per player) that represent a series of squares grouped according to phases (design all the way to deployment) the passage of time is represented in a main square board like monopoly, and completing a trip around the board (passing "Go") allows the player to move each of the requirement cards a number of steps through the SDLC board depending on the capability of the resource cards (senior programmer allows one requirement to move two squares in the dev phase, junior programmer only one, etc.) players will start with play money representing the project budget, and at every pass at "Go" is payday. the player is out of the game if he runs out of funds. the main board also has "chance" / "risk" cards, which represent things that can mess up a project. damage is applied at the roll of a die, and chance modifiers depend on whether the user has "bought" tools / techniques. I haven't implemented this idea yet as I'm still looking at more play elements that can make the game more engaging, as well as soliciting for more ideas. I am planning to release this under Creative Commons license but haven't decided on the exact license yet. Any more game play suggestions are welcome. UPDATE: This was posted in BoardGameGeek and there's now an active discussion thread there. http://www.boardgamegeek.com/article/4436694

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  • App no longer working - any ideas

    - by hamishmcn
    I am out of ideas as to why my app has suddenly stopped working - perhaps the collective mind of the SO community can help... Background: I have a large application that has been working up until recently. Now when ever I try and run it I get the error "The application failed to initialize properly (0xc0000005)" This happens before the app gets to _tmain(). It happens in both release and debug builds. I have tried cleaning and rebuilding the projects and rebooted my PC. The call stack just shows entries for kernel32.dll and ntdll.dll The output window shows: First-chance exception at 0x00532c13 in a.exe: 0xC0000005: Access violation reading location 0xabababdb. First-chance exception at 0x7c964ed1 in a.exe: 0xC0000005: Access violation. Unhandled exception at 0x7c964ed1 in a.exe: 0xC0000005: Access violation. Any ideas? Edit: Okay - found the problem - it was dll related my app uses shared dlls a.dll and b.dll (and others) a.dll hardly every changes (and uses b.dll) b.dll was changed by another developer this morning and a.dll was not rebuilt. Depends.exe did not show any missing dlls, however a.dll no longer works because of the change to b.dll

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  • Select statement with multiple 'where' fields using same value without duplicating text

    - by kdbdallas
    I will start by saying that I don't think what I want can be done, but that said, I am hoping I am wrong and someone knows more than me. So here is your chance... Prove you are smarter than me :) I want to do a search against a SQLite table looking for any records that "are similar" without having to write out the query in long hand. To clarify this is how I know I can write the query: select * from Articles where title like '%Bla%' or category like '%Bla%' or post like '%Bla%' This works and is not a huge deal if you are only checking against a couple of columns, but if you need to check against a bunch then your query can get really long and nasty looking really fast, not to mention the chance for typos. (ie: 'Bla%' instead of '%Bla%') What I am wondering is if there is a short hand way to do this? *This next code does not work the way I want, but just shows kind of what I am looking for select * from Articles where title or category or post like '%Bla%' Anyone know if there is a way to specify that multiple 'where' columns should use the same search value without listing that same search value for every column? Thanks in advance!

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  • SOA Community Newsletter: nouvelle lettre !

    - by mseika
    SOA PARTNER COMMUNITY NEWSLETTERAUGUST 2012 Dear SOA partner community member Have you submitted your feedback on SOA Partner Community Survey 2012? This is the last chance to participate in the survey. We recommend you to complete the survey and help us to improve our SOA Community. Thanks to all attendees and trainers for their participation in the excellent Fusion Middleware Summer Camps held in Lisbon and Munich. I would also like to thank you for the great feedback and the nice reports provided by AMIS Technology Blog & Middleware by Link Consulting. Most of our courses have been overbooked, if you did not get a chance or missed it, we offer a wide range of online training and the course material. Key take-away from the advanced BPM course is to become an expert in ADF. Here is the course from Grant Ronald Learn Advanced ADF online available. The Link Consulting Team became experts in SOA Governance with EAMS and Oracle Enterprise Repository! We always encourage our community members to share their best practices and are very keen to publish it. Please let us know if you want to share your best practices through this medium.We encourage you to make use of the Specialization benefits - this month we are giving an opportunity to Promote Your SOA & BPM Events. Jürgen KressOracle SOA & BPM Partner Adoption EMEA NEW CONTENT Presentations & Training material OFM Summer CampsPromote Your SOA & BPM Events Advanced ADF Online, For Free By Grant BPM 11g Customer Stories & Solution Catalog & Process Accelerators Delivering SOA Governance with EAMS by Link Consulting Team WebLogic Server Provisioning and Patching News from our Partners & CommunityUpdated material by Oracle Connect and Network SOA Blogs SOA on Facebook SOA on LinkedIn SOA on Twitter Mix SOA Forum SOA Workspace PRESENTATIONS & TRAINING MATERIAL OFM SUMMER CAMPS Thanks to all attendees who invested their time and utilized the opportunity to attend the Summer Camps! Due to high demand of our most of the trainings, we had a long waiting list with more numbers of partners who are keen to attend it. We would like to give our special thanks to all trainers, who delivered excellent workshops! Most of the presentations and course material have been posted on our SOA Community Workspaceand WebLogic Community Workspace. You can access the content only if you are a registered community member. To register for the SOA Community please click here. You can register for the WebLogic Community here. To find out the first impressions of the event please visit our Facebook pages:www.facebook.com/WebLogicCommunity &www.facebook.com/soacommunity or Picasa AlbumThanks for the excellent blog posts from AMIS Technology Blog & Middleware by Link Consulting. Let us know if you published a twitter blog on@soacommunity & @wlscommunity. We will be pleased to publish it in our Newsletters. BPM Course Quotes “Its always easy, if you know, what you are doing” - Torsten Winterberg, Opitz“ The best ideas are the ideas from the best” - Filipe Sequeria, Primesoft “Best invest in the education in the last 12 months” - Richard Schaller, IPT “Practice best practice with the best instructor” - Graham Lamond Capgemini “If you have basic BPM knowledge, this is the course to really mater it” - Diogo Henriques Link Consulting “Very good trainers lot of work. Lot of fun as well” - Matthias Gris Workflow Factory “If you like to accelerate in Oracle come to the training to bring it all together” - Marcel van der Glind, Amis ADF Course Quotes "Excellent training, great opportunity to network!" - Frank Houweling, Amis "Lots of fun and good ideas" - Ana Santiago, GFI "Learn ADF, worth it Fusion Apps is the future" - Miguel Delgadillo, STO Consulting "The best way to learn Fusion Middleware from the #1" Alexandro Montantes, STO Consulting "Be advanced to to be the first” - Dimitar Petrov Fadata "Great opportunity to suck all the knowledge out of some very experienced product managers” - Wilfred von der Deijl, The Future Group WebLogic Course Quotes “Oracle trainings are the best” - Pedro Neto Novobas“ "Excellent training, well organized” - Pedro Antunh, Capgemini “This course dives you into Oracle WebLogic giving you a quick start on benefiting from Fusion Apps” - Leonardo Fernandes, Outsystems Additional Quotes “Thanks a lot again for organizing such a great and informative Summer Camp. Both training and networking were organized very professionally. I have gained tons of very useful Info, which will definitely help to increase quality of our future projects.” - Daniel Fasko fss-group.com I didn’t get the chance yesterday to thank you for a most enjoyable and thoroughly educational time I had in Munich over the last few days.” - Jeroen Bakker Ordina “Just to congratulate you on a great event, not only today but also in the previous days of training. As we know, a very good organization and, as a native Portuguese that knows Lisbon very good, a nice choice of places to visit. Looking forward to come again next year.” Pedro Miguel Neto, Novobase PROMOTE YOUR SOA & BPM EVENTS The Partner Event Publisher has just been made available to all SOA & BPM specialized partners in EMEA. Partners now have the opportunity to publish their events to theOracle.com/events site and spread the word on their upcoming live in-person and/or live webcast events. See the demo below and click here to read more information. ADVANCED ADF ONLINE, FOR FREE BY GRANT The second part of the advanced ADF online eCourse is Live now! This covers the advanced topics of region and region interaction as well as getting down and dirty with some of the layout features of ADF Faces, skinning and DVT components. The aim of this course is to give you a self-paced learning aid which covers the more advanced topics of ADF development. The content is developed by Product Management and our Curriculum development teams and is based on advanced training material we have been running internally for about 18 months. We will get started on the next chapter, but in the meantime, please have a look at chapters one and two. Back to top BPM 11G CUSTOMER STORIES & SOLUTION CATALOG & PROCESS ACCELERATORS Stories Everyone loves a good story on planning or implementing a BPM strategy. Everyone wants to hear how it was done before?, what worked?, what was achieved? If you have achieved success with BPM, we are very keen to hear your stories and examples of how your customers use it. We receive lots of requests from people who are thinking of using BPM to solve a specific problem or in combination with a specific technology to talk to someone who has done it before. These stories are invaluable. Drop down the details of anything you think is relevant with a bit of detail and we will follow up on it. As one good deed deserves another, we will do our best to give you stories if you need them to show that where you are going, others have treaded before. Send your stories to us using this e-mail link and we will share them among other like minded people. Solution Catalogue This summer, Oracle is launching a solution catalogue specifically intended for partners. If you have delivered a successful implementation in BPM and think it could be reused and applied again in a similar scenario in the same industry or in a similar environment, then we ware keen to know about it and will add it to the solution catalogue. The solution catalogue will showcase successful BPM solutions both inside and outside Oracle. Be in touch with us on this e-mail link and we will make sure to add your solution. Process AcceleratorsFinally if you have specific processes that you are expert on, you have implemented at a customer and you want to work with us on getting these productised, then we would love to know about it. The process accelerator programme is explained in the most recent SOA/BPM Community Newsletter but again feel free to contact us if you want to get involved. Good luck with BPM and let us know how we can help. Barry O'Reilly Director BPM [email protected] DELIVERING SOA GOVERNANCE WITH EAMS BY LINK CONSULTING TEAM In the last 12 years Link Consulting has been making its presence in specific areas such as Governance and Architecture, both in terms of practices and methodologies, products, know-how and technological expertise. The Enterprise Architecture Management System - Oracle Enterprise Edition (EAMS - OER Edition) is the result of this experience and combines the architecture management solution with OER in order to deliver a product specialized for SOA Governance that gathers the better of two worlds in solution that enables SOA Governance projects, initiatives and programs. Enterprise Architecture Management System Enterprise Architecture Management System (EAMS), is an automation based solution that enables the efficient management of Enterprise Architectures. The solution uses configured enterprise repositories and takes advantages of its features to provide automation capabilities to the users. EAMS provides capabilities to create/customize/analyze repository data, architectural blueprints, reports and analytic charts. Oracle Enterprise Repository Oracle Enterprise Repository (OER) is one of the major and central elements of the Oracle SOA Governance solution. Oracle Enterprise Repository provides the tools to manage and govern the metadata for any type of software asset, from business processes and services to patterns, frameworks, applications, components, and models. OER maps the relationships and inter-dependencies that connect those assets to improve impact analysis, promote and optimize their reuse, and measure their impact on the bottom line. It provides the visibility, feedback, controls, and analytics to keep your SOA on track to deliver business value. The intense focus on automation helps to overcome barriers to SOA adoption and streamline governance throughout the lifecycle. Core capabilities of the OER include: Asset Management Asset Lifecycle Management Usage Tracking Service Discovery Version Management Dependency Analysis Portfolio Management EAMS - OER Edition The solution takes the advantages and features from both products and combines them in a symbiotic tool that enhances the quality of SOA Governance Initiatives and Programs. EAMS is able to produce a vast number of outputs by combining its analytical engine, SOA-specific configurations and the assets in OER and other related tools, catalogs and repositories. The configurations encompass not only the extendable parametrization of the metadata but also fully configurable blueprints, PowerPoint reports, charts and queries. The SOA blueprints The solution comes with a set of predefined architectural representations that help the organization better perceive their SOA landscape. More blueprints can be easily created in order to accommodate the organizations needs in terms of detail, audience and metadata. Charts & Dashboards The solution encompasses a set of predefined charts and dashboards that promote a more agile way to control and explore the assets. Time Based Visualization All representations are time bound, and with EAMS - OER you can truly govern SOA with a complete view of the Past, Present and Future; The solution delivers Gap Analysis, a project oriented approach while taking into consideration the As-Was, As-Is an To-Be. Time based visualization differentiating factors: Extensive automation and maintenance of architectural representations Organization wide solution. Easy access and navigation to and between all architectural artifacts and representations. Flexible meta-model, customization and extensibility capabilities. Lifecycle management and enforcement of the time dimension over all the repository content. Profile based customization. Comprehensive visibility Architectural alignment Friendly and striking user interfaces For more information on EAMS visit us here. For more information on SOA visit us here. WEBLOGIC SERVER PROVISIONING AND PATCHING For access to the Oracle demo systems please visit OPN and talk to your Partner Expert.SOA Suite and BPM Suite runs on WebLogic! We are pleased to announce the availability of a WebLogic Server Management demo that showcases some of the key provisioning and patching capabilities of WebLogic Server Management Pack Enterprise Edition (EE). To learn more about these features - as well as other features of the pack - please visit the pack's saleskit page.Demo Highlights The demo showcases the following capabilities: Patching Oracle WebLogic Servers Standardizing WebLogic Server Patch Rollouts Creating a WebLogic Domain Provisioning Profile Cloning a WebLogic Domain from a Provisioning Profile Deploying a Java EE Application Scaling Out an Oracle WebLogic Cluster Demo Instructions Go to the DSS website for Oracle Partners. On the Standard Demo Launchpad page, under the “Software Lifecycle Automation” section, click on the link “EM Cloud Control 12c WLS Provisioning and Patching” (tagged as “NEW”). Specific demo launchpad page contains a link to the detailed demo script with instructions on how to show the demo.

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  • Down Tools Week Cometh: Kissing Goodbye to CVs/Resumes and Cover Letters

    - by Bart Read
    I haven't blogged about what I'm doing in my (not so new) temporary role as Red Gate's technical recruiter, mostly because it's been routine, business as usual stuff, and because I've been trying to understand the role by doing it. I think now though the time has come to get a little more radical, so I'm going to tell you why I want to largely eliminate CVs/resumes and cover letters from the application process for some of our technical roles, and why I think that might be a good thing for candidates (and for us). I have a terrible confession to make, or at least it's a terrible confession for a recruiter: I don't really like CV sifting, or reading cover letters, and, unless I've misread the mood around here, neither does anybody else. It's dull, it's time-consuming, and it's somewhat soul destroying because, when all is said and done, you're being paid to be incredibly judgemental about people based on relatively little information. I feel like I've dirtied myself by saying that - I mean, after all, it's a core part of my job - but it sucks, it really does. (And, of course, the truth is I'm still a software engineer at heart, and I'm always looking for ways to do things better.) On the flip side, I've never met anyone who likes writing their CV. It takes hours and hours of faffing around and massaging it into shape, and the whole process is beset by a gnawing anxiety, frustration, and insecurity. All you really want is a chance to demonstrate your skills - not just talk about them - and how do you do that in a CV or cover letter? Often the best candidates will include samples of their work (a portfolio, screenshots, links to websites, product downloads, etc.), but sometimes this isn't possible, or may not be appropriate, or you just don't think you're allowed because of what your school/university careers service has told you (more commonly an issue with grads, obviously). And what are we actually trying to find out about people with all of this? I think the common criteria are actually pretty basic: Smart Gets things done (thanks for these two Joel) Not an a55hole* (sorry, have to get around Simple Talk's swear filter - and thanks to Professor Robert I. Sutton for this one) *Of course, everyone has off days, and I don't honestly think we're too worried about somebody being a bit grumpy every now and again. We can do a bit better than this in the context of the roles I'm talking about: we can be more specific about what "gets things done" means, at least in part. For software engineers and interns, the non-exhaustive meaning of "gets things done" is: Excellent coder For test engineers, the non-exhaustive meaning of "gets things done" is: Good at finding problems in software Competent coder Team player, etc., to me, are covered by "not an a55hole". I don't expect people to be the life and soul of the party, or a wild extrovert - that's not what team player means, and it's not what "not an a55hole" means. Some of our best technical staff are quiet, introverted types, but they're still pleasant to work with. My problem is that I don't think the initial sift really helps us find out whether people are smart and get things done with any great efficacy. It's better than nothing, for sure, but it's not as good as it could be. It's also contentious, and potentially unfair/inequitable - if you want to get an idea of what I mean by this, check out the background information section at the bottom. Before I go any further, let's look at the Red Gate recruitment process for technical staff* as it stands now: (LOTS of) People apply for jobs. All these applications go through a brutal process of manual sifting, which eliminates between 75 and 90% of them, depending upon the role, and the time of year**. Depending upon the role, those who pass the sift will be sent an assessment or telescreened. For the purposes of this blog post I'm only interested in those that are sent some sort of programming assessment, or bug hunt. This means software engineers, test engineers, and software interns, which are the roles for which I receive the most applications. The telescreen tends to be reserved for project or product managers. Those that pass the assessment are invited in for first interview. This interview is mostly about assessing their technical skills***, although we're obviously on the look out for cultural fit red flags as well. If the first interview goes well we'll invite candidates back for a second interview. This is where team/cultural fit is really scoped out. We also use this interview to dive more deeply into certain areas of their skillset, and explore any concerns that may have come out of the first interview (these obviously won't have been serious or obvious enough to cause a rejection at that point, but are things we do need to look into before we'd consider making an offer). We might subsequently invite them in for lunch before we make them an offer. This tends to happen when we're recruiting somebody for a specific team and we'd like them to meet all the people they'll be working with directly. It's not an interview per se, but can prove pivotal if they don't gel with the team. Anyone who's made it this far will receive an offer from us. *We have a slightly quirky definition of "technical staff" as it relates to the technical recruiter role here. It includes software engineers, test engineers, software interns, user experience specialists, technical authors, project managers, product managers, and development managers, but does not include product support or information systems roles. **For example, the quality of graduate applicants overall noticeably drops as the academic year wears on, which is not to say that by now there aren't still stars in there, just that they're fewer and further between. ***Some organisations prefer to assess for team fit first, but I think assessing technical skills is a more effective initial filter - if they're the nicest person in the world, but can't cut a line of code they're not going to work out. Now, as I suggested in the title, Red Gate's Down Tools Week is upon us once again - next week in fact - and I had proposed as a project that we refactor and automate the first stage of marking our programming assessments. Marking assessments, and in fact organising the marking of them, is a somewhat time-consuming process, and we receive many assessment solutions that just don't make the cut, for whatever reason. Whilst I don't think it's possible to fully automate marking, I do think it ought to be possible to run a suite of automated tests over each candidate's solution to see whether or not it behaves correctly and, if it does, move on to a manual stage where we examine the code for structure, decomposition, style, readability, maintainability, etc. Obviously it's possible to use tools to generate potentially helpful metrics for some of these indices as well. This would obviously reduce the marking workload, and would provide candidates with quicker feedback about whether they've been successful - though I do wonder if waiting a tactful interval before sending a (nicely written) rejection might be wise. I duly scrawled out a picture of my ideal process, which looked like this: The problem is, as soon as I'd roughed it out, I realised that fundamentally it wasn't an ideal process at all, which explained the gnawing feeling of cognitive dissonance I'd been wrestling with all week, whilst I'd been trying to find time to do this. Here's what I mean. Automated assessment marking, and the associated infrastructure around that, makes it much easier for us to deal with large numbers of assessments. This means we can be much more permissive about who we send assessments out to or, in other words, we can give more candidates the opportunity to really demonstrate their skills to us. And this leads to a question: why not give everyone the opportunity to demonstrate their skills, to show that they're smart and can get things done? (Two or three of us even discussed this in the down tools week hustings earlier this week.) And isn't this a lot simpler than the alternative we'd been considering? (FYI, this was automated CV/cover letter sifting by some form of textual analysis to ideally eliminate the worst 50% or so of applications based on an analysis of the 20,000 or so historical applications we've received since 2007 - definitely not the basic keyword analysis beloved of recruitment agencies, since this would eliminate hardly anyone who was awful, but definitely would eliminate stellar Oxbridge candidates - #fail - or some nightmarishly complex Google-like system where we profile all our currently employees, only to realise that we're never going to get representative results because we don't have a statistically significant sample size in any given role - also #fail.) No, I think the new way is better. We let people self-select. We make them the masters (or mistresses) of their own destiny. We give applicants the power - we put their fate in their hands - by giving them the chance to demonstrate their skills, which is what they really want anyway, instead of requiring that they spend hours and hours creating a CV and cover letter that I'm going to evaluate for suitability, and make a value judgement about, in approximately 1 minute (give or take). It doesn't matter what university you attended, it doesn't matter if you had a bad year when you took your A-levels - here's your chance to shine, so take it and run with it. (As a side benefit, we cut the number of applications we have to sift by something like two thirds.) WIN! OK, yeah, sounds good, but will it actually work? That's an excellent question. My gut feeling is yes, and I'll justify why below (and hopefully have gone some way towards doing that above as well), but what I'm proposing here is really that we run an experiment for a period of time - probably a couple of months or so - and measure the outcomes we see: How many people apply? (Wouldn't be surprised or alarmed to see this cut by a factor of ten.) How many of them submit a good assessment? (More/less than at present?) How much overhead is there for us in dealing with these assessments compared to now? What are the success and failure rates at each interview stage compared to now? How many people are we hiring at the end of it compared to now? I think it'll work because I hypothesize that, amongst other things: It self-selects for people who really want to work at Red Gate which, at the moment, is something I have to try and assess based on their CV and cover letter - but if you're not that bothered about working here, why would you complete the assessment? Candidates who would submit a shoddy application probably won't feel motivated to do the assessment. Candidates who would demonstrate good attention to detail in their CV/cover letter will demonstrate good attention to detail in the assessment. In general, only the better candidates will complete and submit the assessment. Marking assessments is much less work so we'll be able to deal with any increase that we see (hopefully we will see). There are obviously other questions as well: Is plagiarism going to be a problem? Is there any way we can detect/discourage potential plagiarism? How do we assess candidates' education and experience? What about their ability to communicate in writing? Do we still want them to submit a CV afterwards if they pass assessment? Do we want to offer them the opportunity to tell us a bit about why they'd like the job when they submit their assessment? How does this affect our relationship with recruitment agencies we might use to hire for these roles? So, what's the objective for next week's Down Tools Week? Pretty simple really - we want to implement this process for the Graduate Software Engineer and Software Engineer positions that you can find on our website. I will be joined by a crack team of our best developers (Kevin Boyle, and new Red-Gater, Sam Blackburn), and recruiting hostess with the mostest Laura McQuillen, and hopefully a couple of others as well - if I can successfully twist more arms before Monday.* Hopefully by next Friday our experiment will be up and running, and we may have changed the way Red Gate recruits software engineers for good! Stay tuned and we'll let you know how it goes! *I'm going to play dirty by offering them beer and chocolate during meetings. Some background information: how agonising over the initial CV/cover letter sift helped lead us to bin it off entirely The other day I was agonising about the new university/good degree grade versus poor A-level results issue, and decided to canvas for other opinions to see if there was something I could do that was fairer than my current approach, which is almost always to reject. This generated quite an involved discussion on our Yammer site: I'm sure you can glean a pretty good impression of my own educational prejudices from that discussion as well, although I'm very open to changing my opinion - hopefully you've already figured that out from reading the rest of this post. Hopefully you can also trace a logical path from agonising about sifting to, "Uh, hang on, why on earth are we doing this anyway?!?" Technorati Tags: recruitment,hr,developers,testers,red gate,cv,resume,cover letter,assessment,sea change

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  • Disable integrated client certificate validation in IIS7?

    - by danford
    We have an IIS 7 hosted site that requires client certificates (two-way ssl). Unfortunately, I don't have access to the trusted certificate store on the host machines, and so I was forced to write a custom http module to verify the certificates. My module never gets a chance to do the authentication, however, because IIS doesn't recognize the certificates and responds with a 403.7 error. How do I turn off client certificate validation, while still requiring clients to provide them?

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  • How to use sudo with rcp command to copy files from linux host to HP-UX host?

    - by Justin
    I'm having this issue where when I try to use sudo to rcp some files from a Linux host to an HP-UX host (note that the destination directory requires root access to write to), I get the following error from HP-UX's side: remshd: Login incorrect. I should note that the passwords for the Linux host and the HP-UX host are different. The command doesn't seem to give me a chance to enter the proper HP-UX password and automatically defaults to this error.

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  • Different SVN Serverversions and Clients

    - by lueda
    Hi, we are going to migrate from CVS to SVN using subversion 1.6. But also we have another SVN-Server using subversion 1.2 (no chance to update). So we plan to use the newer TortoiseSVN 1.6.x Is it possible to use two different servers while using only the new TortoiseSVN? Another solution may be using an old TortoiseSVN compiled against subversion 1.2. Is this possible? What about using two TortoiseSVN (1.2.x and 1.6.x)?

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  • i5 vs. i7 processor dev laptop

    - by vector
    Greetings! I need to get a laptop for dev work ( mostly server side Java, NetBeans ) and wonder if anyone had a chance to use either the i5 or i7 based laptop? Is the i7 an overkill? ... or will the i5 handle it just fine? I'm thinking something from the HP line running Ubuntu. Thanks

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  • On Windows how can I prevent login until a software package has been installed?

    - by Phil Hannent
    I have an MSI which is configured for machine level installation because it is a device driver. I can deploy it via Active Directory and Group Policy just fine. However on a newly booted machine a user can login before the installation has a chance to complete and I get an warning in the event log saying it couldn't complete and will be tried at next reboot. How can I make the login screen wait for the installation to be completed?

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  • DNS Records (Nettica.com)

    - by Bambule Obecna
    Hi, If someone uses Nettica.com (to manage DNS records), is there any chance, how to find out hosting provider? Example http://who.is/dns/evernote.com/ evernote.com NS 1 day dns5.nettica.com evernote.com NS 1 day dns1.nettica.com evernote.com NS 1 day dns2.nettica.com evernote.com NS 1 day dns3.nettica.com evernote.com NS 1 day dns4.nettica.com Questions Which hosting provider does Evernote use? Why Evernote use Nettica.com? What's the advantage? Thank you.

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  • Uninstall Adobe Flash C4 from mac

    - by Nava Carmon
    I've installed a trial of Adobe Flash CS4 (i didn't use this trial till the end) and wrongly entered the expired license number. I ran uninstall and tried to install a trial version again. Seems, that it keeps somewhere the wrong serial number and each time i run the Flash application it alerts me, that the license has expired. How do i properly install the trial? Do i have a chance at all? Thanks a lot!

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  • "tasksel: aptitude failed (100)" installing LAMP on Ubuntu (vagrant)

    - by John Mee
    vagrant@precise64:~$ sudo tasksel install lamp-server tasksel: aptitude failed (100) I'm hoping to get a LAMP server from a clean install of ubuntu. All the googles suggest tasksel, which going into a pretty ascii gui, downloads stuff, then dies with this message. I'm guessing I should try doing it via apt-get of the individual packages but seems a fair chance somebody else is going to search for this error message and want the right answer.

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  • RAID for a home PC

    - by Mennon
    I have a home PC with two identical physical drives (SATA), ASUS P5Q-EM motherboard and Windows 7. HDD 1 has two partitions C: and D:, Windows is installed on C: and everthing else is on D:. Now the task is to organize some kind of RAID to mirror all data from HDD 1 to HDD 2 (at the moment HDD 2 is empty, no partitions), so HDD 2 is a backup copy of HDD 1. I've never had chance before to work with RAID, so any suggestions would be greatly appreciated.

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  • RAID for a home PC

    - by Mennon
    I have a home PC with two identical physical drives (SATA), ASUS P5Q-EM motherboard and Windows 7. HDD 1 has two partitions C: and D:, Windows is installed on C: and everthing else is on D:. Now the task is to organize some kind of RAID to mirror all data from HDD 1 to HDD 2 (at the moment HDD 2 is empty, no partitions), so HDD 2 is a backup copy of HDD 1. I've never had chance before to work with RAID, so any suggestions would be greatly appreciated.

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  • WinXP: File Record Segment nnnn is unreadable?

    - by chris
    I'm pretty sure that the drive is toast, except for the fact that this error is only showing up on one partition (it's out of a Dell computer, and has a couple of Dell partitions, which boot and work fine.) I've already purchased another hard drive, and re-installed WinXP, but when I re-connect this drive and reboot, I'm getting thousands of these errors. Is there any chance of recovering any files off this? Should I prevent XP from trying to resolve the problems?

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  • What is the easiest/simplest way to change the HD on a Linux server?

    - by ArmlessJohn
    Hello. I have a machine running Ubuntu Server that has been presenting some HD-related problems. Instead of reinstalling and reconfiguring everything (and to save time) we'd like to copy everything from the current hard drive to a new one and start using it. We only have a single hard drive with a main partition and a swap partition. What tools or methods would you recommend for replacing a hard drive with minimum difficulty and chance of problems? Thank you.

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  • Log requests in apache upon arrival

    - by Patrick Cornelissen
    Is it possible to log requests in the apache when they arrive not when they have been processed? We have a pretty big web based application and the way it's currently logged is sometimes confusing to read, because each request with it's subrequests is logged "upside down", because apache logs the request after it has been processed, so the initial request is the last entry for this "query". We're wondering if there is a chance to log on arrival?!

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  • Myst 4 still not working on my mac 10.6 after following instructions from this web site (link provid

    - by user33675
    I followed the instructions from this link (http://superuser.com/questions/125931/how-do-i-install-myst-4-revelation-on-os-x-10-6) to the T on this website.... after I installed the game and tried to play it i got this message.....(Myst4 Revelation quit unexpectedly) it gave me the chance to reopen it but every time i tried it did not work. Can any one help me with this problem thanks.

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  • How to install clonezilla on Ubuntu 9.10?

    - by Fantomas
    I installed latest Ubuntu on a flash drive. Was ready to install clonezilla with apt-get install clonezilla but that's not the way to do it? I prefer a physical install to a live one because I then have a chance to load specialized ntfs drivers for instance, should there be a need. How can I do this? Thank you!

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  • Alternative to arrow keys in Google Chrome location bar

    - by saltycrane
    I like Google Chrome because it is fast but I don't like using the arrow keys in the location bar to complete URLs. Is there any extension, or setting I'm missing, that allows me to use the Tab key (or other customizable key) for completion like in Firefox? I am an Emacs user and am aware of Conkeror. I just wanted to give Google Chrome a fair chance. Edit: I'm using version 4.0.266.0 on Linux.

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