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  • When to use each user research method

    - by user12277104
    There are a lot of user research methods out there, but sometimes we get stuck in a rut, conducting all formative usability testing before coding, or running surveys to gather satisfaction data. I'll be the first to admit that it happens to me, but to get out of a rut, it just takes a minute to look at where I am in the design & development cycle, what kind(s) of data I need, and what methods are available to me. We need reminders, or refreshers, every once in a while. One tool I've found useful is a graphic organizer that I created many years ago. It's been through several revisions, as I've adapted it to the product cycles of the places I've worked, changed my mind about how to categorize it, and added methods that I've used or created over time. I shared a version of this table at the 2012 International UPA conference, and I was contacted by someone yesterday who wanted to use it in a university course on user-center design. I was flattered at the the thought, but embarrassed, because I was sure it needed updating -- that was a year ago, after all. But I opened it today, and really, there's not much I'd change -- sure, I could add some nuance regarding what types of formative testing, such as modality (remote, unmoderated remote, or in-person) or flavor of testing (RITE, RITE-Krug, comparative, performance), but I think it's pretty much ok as is. Click on the image below, to get the full-size PDF. And whether it's entirely "right" or "wrong" isn't the whole value of looking at these methods across the product lifecycle. The real value lies in the reminder that I have options. And what those options are change as the field changes, so while I don't expect this graphic to have an eternal shelf life, it's still ok a year after I last updated it. That said, if you find something missing or out of place, let me know :) 

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  • Is individual code ownership important?

    - by Jim Puls
    I'm in the midst of an argument with some coworkers over whether team ownership of the entire codebase is better than individual ownership of components of it. I'm a huge proponent of assigning every member of the team a roughly equal share of the codebase. It lets people take pride in their creation, gives the bug screeners an obvious first place to assign incoming tickets, and helps to alleviate "broken window syndrome". It also concentrates knowledge of specific functionality with one (or two) team members making bug fixes much easier. Most of all, it puts the final say on major decisions with one person who has a lot of input instead of with a committee. I'm not advocating for requiring permission if somebody else wants to change your code; maybe have the code review always be to the owner, sure. Nor am I suggesting building knowledge silos: there should be nothing exclusive about this ownership. But when suggesting this to my coworkers, I got a ton of pushback, certainly much more than I expected. So I ask the community: what are your opinions on working with a team on a large codebase? Is there something I'm missing about vigilantly maintaining collective ownership?

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  • Strange resolution on Ubuntu 11.10

    - by FSchmidt
    I only just installed Ubuntu 11.10, so excuse me if this question is silly ;-) I have a Fujitsu Esprimo Mobile V655, nvidia 8200 graphics, and recently installed Ubuntu 11.10 using wubi. I had to modify booting commands to include nomodeset; otherwise Ubuntu would not boot. Now I did set my screen resolution to 1280 x 720, which is the correct resolution for this screen. Still, the display seems imperfect. The font sizes seem unnatural(too large / stretched) and text is quite blurry (especially in Firefox). Could it have something to do withe the nvidia graphics driver and/or the nomodeset parameter? How can I fix this? Update: I used jockey-gtk to update nvidia to the current version. This improved the resolution dramatically (no blurriness, fonts are good). It also means that I no loger need to include nomodesetin the boot commands. However, other problems were brought up by this. It seems that certain files cannot be accessed - icon (images) are missing, some task bars are completely unstyled (grey, block-form, win97 style). I also get this error message(roughly translated from German, so may be slightly different from actual) every time I reboot: Could not apply the stored configuration for the monitor: none of the chosen modi is compatible with the available modi. I have tried nvidia-xconfig, unity --reset , no improvements. Can anyone help, please?

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  • Developing wheel reinventing tendencies into a skill as opposed to reluctantly learning wheel-finding skills? [duplicate]

    - by Korey Hinton
    This question already has an answer here: Is reinventing the wheel really all that bad? 20 answers I am more of a high-level wheel reinventor. I definitely prefer to make use of existing API features built into a language and popular third-party frameworks that I know can solve the problem, however when I have a particular problem that I feel capable of solving within a reasonable time I am very reluctant to find someone else's solution. Here are a few reasons why I reinvent: It takes time to learn a new API API restrictions might exist that I don't know about Avoiding re-work of unfamiliar code I am conflicted between doing what I know and shifting to a new technique I don't feel comfortable with. On one hand I feel like following my instincts and getting really good at solving problems, especially ones that I would never challenge myself with if all I did was try to find answers. And on the other hand I feel like I might be missing out on important skills like saving time by finding the right framework and expanding my knowledge by learning how to use a new framework. I guess my question comes down to this: My current attitude is to stick to the built-in API and APIs I know well* and to not spend my time searching github for a solution to a problem I know I can solve myself within a reasonable amount of time. Is that a reasonable balance for a successful programmer? *Obviously I will still look around for new frameworks that save time and solve/simplify difficult problems.

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  • A New Native Silverlight 4 Rich Text Editor Coming Up

    The eagerly awaited release of Silverlight 4.0 is now a fact and we have great news to share with you. Here at Telerik we are going to have a new addition to our Silverlight suite a brand new native Silverlight 4.0 rich text box. RadRichTextBox offers MS Word-like text editing and formatting capabilities which come with unmatched performance, paged and flow layout. The new control utilizes UI Virtualization and Recycling, easy to use API for accessing/modifying document and layout structure, and more. A CTP of RadRichTextBox is going to be released with the upcoming RadControls for Silverlight 2010.Q1 SP1. The official version is expected to be part of the Q2 2010 release. To illustrate better some of the new features lets see a short example of the document model in pure XAML: As we said above, the structure of the document is like the documents in WPF. In the ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Algorithm to match timestamped events from two sources

    - by urza.cc
    I have two different physical devices (one is camera, one is other device) that observe the same scene and mark when a specified event occures. (record timestamp) So they each produce a serie of timestamps "when the event was observed". Theoretically the recorded timestamps should be very well aligned: Visualized ideal situation on two time lines "s" and "r" as recorded from the two devices: but more likely they will not be so nicely aligned and there might be missing events from timeline s or r: I am looking for algorithm to match events from "s" and "r" like this: So that the result will be something like: (s1,null); (s2,r1); (s3,null); (s4,r2); (s5,r3); (null,r4); (s6,r5); Or something similar. Maybe with some "confidence" rating. I have some ideas, but I feel that this might be probably a well known problem, that has some good known solutions, but I don't know the right terminology. I am a little bit out of my element here, this is not my primary area of programming.. Any helps, suggestions etc will be appreciated.

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  • Best practice for combining a Java Applet/ Android interface?

    - by Pearsonartphoto
    I'm working on an online game, which I am seriously considering writing a Java Applet for it. The game is not overly complex on the features. I'm considering at some point having at least 3 versions of the game, which include a Java stand alone, applet, and Android game. I know from Design Patterns that the best way to use differing things like buttons and the like is to use a Bridge interface, where I have a common template for the common buttons. However, I'm having a bit of difficulty understanding what to do about the following. I know that Android programs use an Activity structure, which I am well familiar with, and that Applets extend the Applet interface, which I am not as familiar with. I also know that a stand alone java program uses basically a main() function, which doesn't have much structure. I'm convinced that there should be a way to design a common design pattern between the two, but somehow I'm missing what that is exactly. What can I do to make the different frameworks work with as much common code as possible?

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  • XboxMP Helps You Find Multiplayer Games for the Xbox

    - by Jason Fitzpatrick
    Searching for the perfect versus or cooperative Xbox multiplayer game can be challenging–the game publisher says it plays four but what exactly does that mean? XboxMP catalogs games with detailed breakdowns of what the multiplayer experience actually entails. You can search first generation Xbox games, Xbox 360 games, and Xbox Live Arcade games with a variety of detailed criteria including the number of players it supports for local, system link, and online play (it may be a deal breaker, for example, that the only way to play the game with 4 players is to have two Xboxes or an Xbox live account). In addition to the multiplayer game data each game listing also includes addition information about the general game play including peripheral support and other features. Hit up the link below to check it out and, for more help finding multiplayer cooperative games, make sure to check out previously reviewed Co-Optimus. XBoxMP What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8 HTG Explains: Why You Shouldn’t Use a Task Killer On Android

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  • SQL Source Control with Vault Support Officially Released

    - by Ajarn Mark Caldwell
    HOORAY!  It is officially here!  Today, Red-Gate officially released SQL Source Control version 2.1 with support for Vault. While we have been happily and successfully running the beta version (a.k.a. the Early Access release) of Red-Gate SQL Source Control with support for Vault for quite a while, it is good to have the official RTM (or GOLD, or PROD, or whatever you call your “no-longer-in-beta”) release of the product. As a courtesy to those who have not already read the series, allow me to provide you with these links to my previous posts about this fantastic tool. Using SQL Source Control with Fortress or Vault – Part 1 – Introduction and initial thoughts about the tool and source controlling SQL code in general. Using SQL Source Control with Fortress or Vault – Part 2 – Additional details about included features and a few warnings. Source Control and SQL Development – Part 3 – How we did it in the good ol’ days before this product came along. Using SQL Source Control and Vault Professional Part 4 – A few closing thoughts.

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  • Download the Anime Angels Theme for Windows 7

    - by Asian Angel
    Do you have a passion for all things anime? Then you will definitely want to have a look at the Anime Angels Theme for Windows 7. This cute theme will give your desktop that extra bit of fun and spunk to help bring a smile to your face. The theme comes with 21 Hi-Res wallpapers of the cutest Anime Angels from around the web, a wonderful set of anime icons, and great system sounds to round out the perfect anime theme. Anime Angels Theme For Windows (Anime Themes) [VikiTech] Latest Features How-To Geek ETC How To Remove People and Objects From Photographs In Photoshop Ask How-To Geek: How Can I Monitor My Bandwidth Usage? Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The Legend of Zelda – 1980s High School Style [Video] Suspended Sentence is a Free Cross-Platform Point and Click Game Build a Batman-Style Hidden Bust Switch Make Your Clock Creates a Custom Clock for your Android Homescreen Download the Anime Angels Theme for Windows 7 CyanogenMod Updates; Rolls out Android 2.3 to the Less Fortunate

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  • Transition from 2D to 3D Game development [closed]

    - by jakebird451
    I have been working in the 2D world for a long time from manual blitting in windows to SDL to Python (pygame, pyopengl) and a bunch in between. Needless to say I have been programming for a while. So a while ago I started to program in OpenGL via C++ on my Mac. I then got a little intricate with my work after a while (3D models with skeleton structure and terrain development). After a long time of tinkering, I stopped due to the heavy work just to yield a low level understanding of how OpenGL works. Still interested in Graphics and Game Development I went on a search for a stable game engine with some features to grow on. Licence Requirement: Anything other than GPL (LGPL will do) OS Requirement: Mac & Windows Shader: GLSL or CG (GLSL preferred due to experience) Models: Any model structure with rigging (bone) support & animation I am looking at http://www.ogre3d.org/ currently and am starting to meddle around with some examples. However I am a little reluctant to spend a lot of time on it only to yield another dead end. So instead of falling down a spiraling black pit, I am posting my question to you guys to lead me in the right direction based on my requirements. How was your experience with the engine you recommend? Is it well documented? Does it have well documented examples? Any library requirements (Boost, libpng, etc)?

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  • Pros and Cons of Facebook's React vs. Web Components (Polymer)

    - by CletusW
    What are the main benefits of Facebook's React over the upcoming Web Components spec and vice versa (or perhaps a more apples-to-apples comparison would be to Google's Polymer library)? According to this JSConf EU talk and the React homepage, the main benefits of React are: Decoupling and increased cohesion using a component model Abstraction, Composition and Expressivity Virtual DOM & Synthetic events (which basically means they completely re-implemented the DOM and its event system) Enables modern HTML5 event stuff on IE 8 Server-side rendering Testability Bindings to SVG, VML, and <canvas> Almost everything mentioned is being integrated into browsers natively through Web Components except this virtual DOM concept (obviously). I can see how the virtual DOM and synthetic events can be beneficial today to support old browsers, but isn't throwing away a huge chunk of native browser code kind of like shooting yourself in the foot in the long term? As far as modern browsers are concerned, isn't that a lot of unnecessary overhead/reinventing of the wheel? Here are some things I think React is missing that Web Components will care of. Correct me if I'm wrong. Native browser support (read "guaranteed to be faster") Write script in a scripting language, write styles in a styling language, write markup in a markup language. Style encapsulation using Shadow DOM React instead has this, which requires writing CSS in JavaScript. Not pretty. Two-way binding

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  • Java SE 8 (with JavaFX) Developer Preview Release for ARM

    - by Roger Brinkley
    In an effort to get ARM developers testing Java SE 8 before the scheduled release later this year a Java SE 8 Developer Preview Release for ARM has been made available. This release has been tested on the Raspberry PI but should work on other ARM platforms. In addition to the new Java SE features, this release provides specific support of hard float GPU on the Raspberry PI. The support for hard float GPU has been anticipated by a number of developers. Additionally, this release includes support of an optimized JavaFX. Specific configurations of JDK 8 on ARM are defined below: Java FX is supported on ARM architecture v6/7 (hard float) Supported platforms without Java FX: ARM architecture v6/7 (hard float) ARM architecture v7 (VFP, little endian) ARM architecture v5 (soft float, little endian) Linux x86 The download page includes setup instructions for a Raspberry PI device as well as demos and samples. Developers are also encouraged to try their own applications as well and to share their stories via the JavaFX or Project Feedback Forums.  If you've got a Raspberry PI or other ARM devices it's time to get started with Java SE 8 Developer Preview release.

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  • How to Change the Cmd+Q Shortcut Key in OS X (to Stop Accidentally Closing Apps)

    - by The Geek
    If you’ve spent any time using Mac OS X, you’ve figured out that the Cmd+W shortcut key closes a window or tab, while the Cmd+Q key quits the entire app. The problem? The keys are right next to each other, and way too easy to accidentally hit! Here’s how to change it. This problem is compounded even more when you’re using an application like Google Chrome, Safari, or Firefox, where you’re opening or closing tabs all the time, and probably using the Cmd+W key to close just the current tab. If you aren’t careful, you’ll accidentally hit Cmd+Q instead, and your entire browser gets closed. Latest Features How-To Geek ETC How to Use the Avira Rescue CD to Clean Your Infected PC The Complete List of iPad Tips, Tricks, and Tutorials Is Your Desktop Printer More Expensive Than Printing Services? 20 OS X Keyboard Shortcuts You Might Not Know HTG Explains: Which Linux File System Should You Choose? HTG Explains: Why Does Photo Paper Improve Print Quality? Awesome WebGL Demo – Flight of the Navigator from Mozilla Sunrise on the Alien Desert Planet Wallpaper Add Falling Snow to Webpages with the Snowfall Extension for Opera [Browser Fun] Automatically Keep Up With the Latest Releases from Mozilla Labs in Firefox 4.0 A Look Back at 2010 Through Infographics Monitor the Weather with the Weather Forecast Extension for Opera

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  • Oracle Magazine Sept/Oct 2012 - Security on the Move

    - by Darin Pendergraft
    This month's Oracle Magazine cover story is Security on the Move.  In it, two Oracle IDM customers discuss their impressions of the latest IDM release.  Kurt Lieber from Kaiser Permanente and Peter Boyle from BT discuss how they are using Oracle IDM to enable their business. Click this link to see the latest issue: http://www.oracle.com/technetwork/issue-archive/2012/12-sep/index.html Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} In addition to the cover article, the Analyst’s Corner features an interview with Sally Hudson from IDC focusing on IDM issues : http://www.oracle.com/technetwork/issue-archive/2012/12-sep/o52analyst-1735921.html And the Partner Perspectives contains information from our IDM partners Hub City Media, aurionPro SENA, and ICSynergy

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  • Can't play Steel Storm, Burning Retribution

    - by Goytor
    I've bougth Steel Storm, Burning Retribution in the Software Center, and every time I run it shows the following message: You have reached this menu due to missing or unlocable content/data You may consider adding -base dir /path/to/game to your launch commandline I've gone to main menu in the preferences tab and changed the launcher to no avail. I've tried running it from console, with /opt/steelstorm-episode2/steelstorm, I got: Game is Steel-Storm using base gamedir gamedata Steel-Storm Linux 01:07:07 Jun 11 2011 - release Playing shareware version. Skeletal animation uses SSE code path DPSOFTRAST available (SSE2 instructions detected) Failed to init SDL joystick subsystem: couldn't exec quake.rc couldn't exec default.cfg execing config.cfg couldn't exec autoexec.cfg Client using an automatically assigned port Client opened a socket on address 0.0.0.0:0 Client opened a socket on address [0:0:0:0:0:0:0:0]:0 Linked against SDL version 1.2.12 Using SDL library version 1.2.14 GL_VENDOR: NVIDIA Corporation GL_RENDERER: GeForce 6150SE nForce 430/PCI/SSE2/3DNOW! GL_VERSION: 2.1.2 NVIDIA 270.41.06 vid.support.arb_multisample 1 vid.mode.samples 0 vid.support.gl20shaders 1 Video Mode: fullscreen 640x480x32x0.00hz S_Startup: initializing sound output format: 48000Hz, 16 bit, 2 channels... Wanted audio Specification: Channels : 2 Format : 0x8010 Frequency : 48000 Samples : 2048 Obtained audio specification: Channels : 2 Format : 0x8010 Frequency : 48000 Samples : 1024 Sound format: 48000Hz, 2 channels, 16 bits per sample CDAudio_Init: No CD in player. Can't get initial CD volume CD Audio Initialized If I try -base /opt/steelstorm-episode2/steelstorm says "command not found".

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  • Impact on SEO of adding categories/tags in front of the HTML title [closed]

    - by Mad Scientist
    Possible Duplicate: Does the order of keywords matter in a page title? All StackExchange sites add the most-used tag of a question in front of the HTML title for SEO purposes. On Stackoverflow for example this is usually the programming language, so you end up with a title like python - How do I do X? This has obviously an enourmous benefit on SEO as the programming language is an extremely important keyword that is very often omitted from the title. Now, my question is for the cases where the tag isn't an important keyword missing from the title, but just a category. So on Biology.SE for example one would have questions like biochemistry - How does protein X interact with Y? or on Skeptics medical science - Do vaccines cause autism? Those tags are usually not part of the search terms, they serve to categorize the content but users don't use those tags in their searches. How harmful is adding tags that are not used in searches in terms of SEO? Is there any hard data on the impact this practise might have on SEO? The negative aspects I can imagine, but have no data to show that it is actually a problem are: I heard that search engines dislike keyword stuffing and this might trigger some defense mechanisms against that It's a practise associated with less reputable sites, a keyword in front that doesn't fit the actual title well might look suspicious to some users. It wastes precious space in the title shown in search results.

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  • Dealing with bad/incomplete/unclear specifications?

    - by eagerMoose
    I'm working on a project where our dev team gets the specifications from the business part of the company. Both the business management and the IT management require estimates and deadline projections, as they should. The good thing is that estimates are mostly made by the actual developers who get to do the required features. The bad thing is that the specifications are usually either too simple (it turns out you're left with a lot of question marks over your head because a lot of information seems to be missing) or too complex(up to the point that you can't even visualize where everything would "fit" in the app). More often than not, the business part of the specs are either incomplete or unaware of what can and can't be done (given the previously implemented business logic). Dev team is given about a day per new spec to give an estimate and we do try to clear uncertainties, usually by meeting up with whoever did the spec. Most of the times it turns out that spec writers haven't really thought everything through, and it's usually only when we start designing and developing that we end up in trouble, as a lot of the spec seems to have holes. How do you deal with this? Are you generous on estimates in advance?

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  • Migrating My GWB Blog Over To WordPress

    - by deadlydog
    Geeks With Blogs has been good to me, but there are too many tempting things about Word Press for me to stay with GWB.  Particularly their statistics features, and also I like that I can apply specific tags to my posts to make them easier to find in Google (and I never was able to get categories working on GWB). The one thing I don’t like about WordPress is I can’t seem to find a theme that stretches the Content area to take up the rest of the space on wide resolutions…..hopefully I’ll be able to overcome that obstacle soon though. For those who are curious as to how I actually moved all of my posts across, I ended up just using Live Writer to open my GWB posts, and then just changed it to publish to my WordPress blog.  This was fairly painless, but with my 27 posts it took probably about 2 hours of manual effort to do.  Most of the time WordPress was automatically able to copy the images over, but sometimes I had to save the pics from my GWB posts and then re-add them in Live Writer to my WordPress post.  I found another developers automated solution (in alpha mode), but opted to do it manually since I wanted to manually specify Categories and Tags on each post anyways.  The one thing I still have left to do is move the worthwhile comments across from the GWB posts to the new WordPress posts. The largest pain point was that with GWB I was using the Code Snippet Plugin for Live Writer for my source code snippets, and when they got transferred over to WordPress they looked horrible.  So I ended up finding a new Live Writer plugin called SyntaxHighlighter that looks even nicer on my posts If anybody knows of a nice WordPress theme that stretches the content area to fit the width of the screen, please let me know.  All of the themes I’ve found seem to have a max width set on them, so I end up with much wasted space on the left and right sides.  Since I post lots of code snippets, the more horizontal space the better! So if you want to continue to follow me, my blog's new home is now at https://deadlydog.wordpress.com

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  • Architectural approaches to creating a game menu/shell overlay on PC/Linux?

    - by Ghopper21
    I'm am working on a collection of games for a custom digital tabletop installation (similar to Microsoft Surface tables). Each game will be an individual executable that runs full-screen. In addition, there needs to be a menu/shell overlay program running simultaneously. The menu/shell will allow users to pause games, switch to other games, check their game history, etc. Some key requirements of the shell: it intercepts all user input (mainly multitouch) first before passing it on to the currently running game (so that it can, for instance, know to pop-up at a "pause" command); can reveal on arbitrary portions of the screen, with the currently running (but presumably paused) game still showing underneath, ideally with its shape/size being dynamic, to allow for creation of an animated in/out drawer effect over the game. I'm currently looking into different architectural approaches to this problem, including Fraps and DirectX overlays, but I'm sure I'm missing some ways to think about this. What are the main approaches I should be considering? (Note the table is currently being run by Windows PC, but it could potentially be a Linux box instead.)

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  • How to represent a graph with multiple edges allowed between nodes and edges that can selectively disappear

    - by Pops
    I'm trying to figure out what sort of data structure to use for modeling some hypothetical, idealized network usage. In my scenario, a number of users who are hostile to each other are all trying to form networks of computers where all potential connections are known. The computers that one user needs to connect may not be the same as the ones another user needs to connect, though; user 1 might need to connect computers A, B and D while user 2 might need to connect computers B, C and E. Image generated with the help of NCTM Graph Creator I think the core of this is going to be an undirected cyclic graph, with nodes representing computers and edges representing Ethernet cables. However, due to the nature of the scenario, there are a few uncommon features that rule out adjacency lists and adjacency matrices (at least, without non-trivial modifications): edges can become restricted-use; that is, if one user acquires a given network connection, no other user may use that connection in the example, the green user cannot possibly connect to computer A, but the red user has connected B to E despite not having a direct link between them in some cases, a given pair of nodes will be connected by more than one edge in the example, there are two independent cables running from D to E, so the green and blue users were both able to connect those machines directly; however, red can no longer make such a connection if two computers are connected by more than one cable, each user may own no more than one of those cables I'll need to do several operations on this graph, such as: determining whether any particular pair of computers is connected for a given user identifying the optimal path for a given user to connect target computers identifying the highest-latency computer connection for a given user (i.e. longest path without branching) My first thought was to simply create a collection of all of the edges, but that's terrible for searching. The best thing I can think to do now is to modify an adjacency list so that each item in the list contains not only the edge length but also its cost and current owner. Is this a sensible approach? Assuming space is not a concern, would it be reasonable to create multiple copies of the graph (one for each user) rather than a single graph?

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  • C++ Succinctly now available!

    - by Michael B. McLaughlin
    Over the summer I worked with SyncFusion to create an eBook based off of my C# to C++ guide for their free Succinctly Series of eBooks. Today the result, C++ Succinctly, was published for download. It is a free (registration required; they make tools and libraries for .NET development so you might get an occasional email from them – I’ve been signed up for a few months and have had maybe 3 emails total so it’s not horrible super spam or anything ) and you can download it as a PDF or a Kindle .MOBI file (or both). I’m excited with how it turned out and enjoyed working with the people at SyncFusion. The book contains a total of 20 code samples, which you can download from BitBucket (there’s a link very early in the book). Almost all of the code is also inline in the book itself so that you don’t need to worry about flipping back and forth between your dev machine and your eReader (but if you want to try to understand a concept better, you can easily download the code, open it up in VS 2012, and play around with it to see what happens when you tinker with things). The code does require Visual Studio 2012 because of its expanded support for C++11 features and since I wrote all of the samples as Console programs for clarity and compactness, you will need a version that supports C++ desktop development (currently VS 2012 Pro, Premium, or Ultimate). Sometime this Fall, Microsoft will be releasing Visual Studio 2012 Express for Windows Desktop which should provide a free way to use the samples. That said, I tested all of the samples with MinGW and only the StorageDurationSample will not compile with it due to the thread-local storage code. If you comment that out then you can compile and run all the samples with MinGW (or using a recent version of GCC in a GNU/Linux environment, or any other C++ compiler that provides the same level of C++11 support that Visual Studio 2012 does). I hope it proves helpful to those of you who choose to check it out!

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  • Automatic Generalization

    - by Nick Harrison
    I have been interested in functional programming since college. I played around a little with LISP back then, but I have not had an opportunity since then. Now that F# ships standard with VS 2010, I figured now is my chance. So, I was reading up on it a little over the weekend when I came across a very interesting topic. F# includes a concept called "Automatic Generalization". As I understand it, the compiler will look at your method and analyze how you are using parameters. It will automatically switch to a generic parameter if it is possible based on your usage. Wow! I am looking forward to playing with this. I have long been an advocate of using the most generic types possible especially when developing library classes. Use the highest level base class that you can get away with. Use an interface instead of a specific implementation. I don't advocate passing object around, but you get the idea. Tools like resharper, fxCop, and most static code analysis tools provide guidance to help you identify when a more generalized type is possible, but this is the first time I have heard about the compiler taking matters into its own hands. I like the sound of this. We'll see if it is a good idea or not. What are your thoughts? Am I missing the mark on what Automatic Generalization does in F#? How would this work in C#? Do you see any problems with this?

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  • Java EE @ Devoxx UK

    - by delabassee
    Devoxx UK is taking place next week (12th and 13th June) in London. As with any Devoxx conference, this UK edition will have a nice mix of content, an impressive list of speakers and obviously Java EE will be well will covered too:  Apache TomEE, Java EE Web Profile and more on Tomcat (David Blevins) Myths, Tales and Voodoo - About Java EE and Testing (Adam Bien) 50 new features of Java EE 7 (Antonio Goncalves & Arun Gupta) Java EE 7 Hands-on Lab (Arun Gupta) In addition, there will be 2 BoF related to Java EE on Thursday evening, the first BoF will be about the Java EE platform and the second one will be about the Java EE Reference Implementation, i.e. GlassFish. I will participate in the Java EE Community BoF where will discuss Java EE general but with all recent activities, I suspect that a large portion of the BoF will spent on discussing the current plans for Java EE 8.  Right after and in the same room, I will join Steve Millidge of C2B2 for the GlassFish is here to stay! BoF. The goal is to discuss on GlassFish, the current status, the plans for the next release, how the community can contributes, etc. It should be mentioned that attending those BoFs is completely free, just make sure to register here.  So if you are in London next week, mind the Geek and see you at Devoxx UK!

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  • How should I describe the process of learning someone else's code? (In an invoicing situation.)

    - by MattyG
    I have a contract to upgrade some in-house software for a large company. The company has requested multiple feature additions and a few bug fixes. This is my first freelance style job. First, I needed to become familiar with how the application worked - I learnt it as if I was a user. Next, I had to learn how the software worked. I started with broad concepts, and then narrowed down into necessary detail before working on each bug fix and feature. At least at the start of the project, it took me a lot longer to learn the existing code than it did to write the additional features. How can I describe the process of learning the existing code on the invoice? (This part of the company usually does things in-house, so doesn't have much experience dealing with software contractors like me, and I fear they may not understand the overhead of learning someone else's code). I don't want to just tack the learning time onto the actual feature upgrade, because in some cases this would make a 'simple task' look like it took me way too long. I want break the invoice into relevant steps, and communicate that I'm charging for the large overhead of learning someone else's code before being able to add my own to it. Is there a standard way of describing this sort of activity when billing for a job?

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