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  • Can an agile shop really score 12 on the Joel Test?

    - by Simon
    I really like the Joel test, use it myself, and encourage my staff and interviewees to consider it carefully. However I don't think I can ever score more than 9 because a few points seem to contradict the Agile Manifesto, XP and TDD, which are the bedrocks of my world. Specifically: the questions about schedule, specs, testers and quiet working conditions run counter to what we are trying to create and the values that we have adopted in being genuinely agile. So my question is: is it possible for a true Agile shop to score 12?

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  • Advice on designing a robust program to handle a large library of meta-information & programs

    - by Sam Bryant
    So this might be overly vague, but here it is anyway I'm not really looking for a specific answer, but rather general design principles or direction towards resources that deal with problems like this. It's one of my first large-scale applications, and I would like to do it right. Brief Explanation My basic problem is that I have to write an application that handles a large library of meta-data, can easily modify the meta-data on-the-fly, is robust with respect to crashing, and is very efficient. (Sorta like the design parameters of iTunes, although sometimes iTunes performs more poorly than I would like). If you don't want to read the details, you can skip the rest Long Explanation Specifically I am writing a program that creates a library of image files and meta-data about these files. There is a list of tags that may or may not apply to each image. The program needs to be able to add new images, new tags, assign tags to images, and detect duplicate images, all while operating. The program contains an image Viewer which has tagging operations. The idea is that if a given image A is viewed while the library has tags T1, T2, and T3, then that image will have boolean flags for each of those tags (depending on whether the user tagged that image while it was open in the Viewer). However, prior to being viewed in the Viewer, image A would have no value for tags T1, T2, and T3. Instead it would have a "dirty" flag indicating that it is unknown whether or not A has these tags or not. The program can introduce new tags at any time (which would automatically set all images to "dirty" with respect to this new tag) This program must be fast. It must be easily able to pull up a list of images with or without a certain tag as well as images which are "dirty" with respect to a tag. It has to be crash-safe, in that if it suddenly crashes, all of the tagging information done in that session is not lost (though perhaps it's okay to loose some of it) Finally, it has to work with a lot of images (10,000) I am a fairly experienced programmer, but I have never tried to write a program with such demanding needs and I have never worked with databases. With respect to the meta-data storage, there seem to be a few design choices: Choice 1: Invidual meta-data vs centralized meta-data Individual Meta-Data: have a separate meta-data file for each image. This way, as soon as you change the meta-data for an image, it can be written to the hard disk, without having to rewrite the information for all of the other images. Centralized Meta-Data: Have a single file to hold the meta-data for every file. This would probably require meta-data writes in intervals as opposed to after every change. The benefit here is that you could keep a centralized list of all images with a given tag, ect, making the task of pulling up all images with a given tag very efficient

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  • DDD: Service or Repository

    - by tikhop
    I am developing an app in DDD manner. And I have a little problem with it. I have a Fare (airline fare) and FareRepository objects. And at some point I should load additional fare information and set this information to existing Fare. I guess that I need to create an Application Service (FareAdditionalInformationService) that will deal with obtaining data from the server and than update existing Fare. However, some people said me that it is necessary to use FareRepository for this problem. I don't know wich place is better for my problem Service or Repository.

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  • Is using something other than XML advisable for my configuration file?

    - by Earlz
    I have a small tool I'm designing which would require a configuration file of some sort. The configuration file in my case is really more of a database, but it needs to be lightweight, and if needed the end-user should find it easily editable. However, it also will contain a lot of things in it. (depending on certain factors, could be 1Mb or more) I've decided I'd rather use plain ol' text, rather than trying to use SQLite or some such. However, with using text, I also have to deal with the variety of formats. So far, my options are XML JSON Custom format The data in my file is quite simple consisting for the most part of key-value type things. So, a custom format wouldn't be that difficult... but I'd rather not have to worry about writing the support for it. I've never seen JSON used for configuration files. And XML would bloat the file size substantially I think. (I also just has a dislike of XML in general). What should I do in this case? Factors to consider: This configuration file can be uploaded to a web service(so size matters) Users must be able to edit it by hand if necessary(ease of editing and reading matters) Must be able to generate and process automatically (speed doesn't matter a lot, but not excessively slow) The "keys" and "values" are plain strings, but must be escaped because they can contain anything. (unicode and escaping has to work easily)

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  • Git Project Dependencies on GitHub

    - by VirtuosiMedia
    I've written a PHP framework and a CMS on top of the framework. The CMS is dependent on the framework, but the framework exists as a self-contained folder within the CMS files. I'd like to maintain them as separate projects on GitHub, but I don't want to have the mess of updating the CMS project every time I update the framework. Ideally, I'd like to have the CMS somehow pull the framework files for inclusion into a predefined sub-directory rather than physically committing those files. Is this possible with Git/GitHub? If so, what do I need to know to make it work? Keep in mind that I'm at a very, very basic level of experience with Git - I can make repositories and commit using the Git plugin for Eclipse, connect to GitHub, and that's about it. I'm currently working solo on the projects, so I haven't had to learn much more about Git so far, but I'd like to open it up to others in the future and I want to make sure I have it right. Also, what should my ideal workflow be for projects with dependencies? Any tips on that subject would also greatly appreciated. If you need more info on my setup, just ask in the comments.

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  • .NET WPF Charting Control

    - by Randy Minder
    We're very close to wrapping up a WPF dashboarding application using SSRS (.RDLC files) and the Microsoft Report Viewer. For a number of reasons, this combination has turned out to be less than what we had hoped. One of the biggest problems is that the Microsoft Report Viewer is not a WPF control. We've had other problems as well. Our app consists of at least 5 tabs and each tab has at least 4-5 charts on it. All the charts update on their own timed schedules (like every 15-30 minutes). For the next version I'd like to explore other .NET charting tools for WPF. Performance is absolutely critical. As is resource usage. The tool must support WPF and as many chart types as possible. Can anyone recommend (or not recommend) charting tools they have experience with? We own Telerik and I've dabbled with their charting control. At the 30K foot level, it seems quite nice.

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  • Can I use access used by Visual Basic for building a database [on hold]

    - by user3413537
    I am the only programmer where I work (summer job) and I am a student with only a few years of programming experience. So I was asked to build a database and I am very excited about this project because hopefully I can learn a lot from this. Using this database my manager is supposed to be able to assign work (dealing with businesses) to different people within the company using an interface (all workers have a shared drive). When workers are done with that paperwork related to the business, they can check off that its done, add comments at the bottom of the interface, and then move on to the next business. The only experience I've had with databases is some querying with SQL, and I've built GUI interfaces with JAVA. The information on the interface will be populated from Excel so workers know what businesses they are dealing with. I've done some research and I believe the best way to build this would be building a GUI using Microsoft Visual Studio (Visual Basic) first, then figuring out a way to populate the Interface from Excel. Also because the data is pretty straight forward and not complicated I will be using MS Access to store and track the database. I know this won't be easy, but for all you geniuses out there, is this on the right path? Thanks.

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  • Must-do activities for a team leader, and time managing them

    - by MeLight
    This is a two part question Part one: I'm leading a small team of developers of mixed skills (juniors and seniors). I'm sometimes feeling that I focus too much on my own code, instead of seeing the big the picture, and managing the team. What would you say the most crucial non-coding activities for a team leader, related to his team members? Part two:Given that I know what other (non-coding stuff) I should be doing, what is a good time division between my own code writing and managing the other team members (code reviews, whiteboarding, meetings etc).

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  • What resources do you recommend for learning more about TCP/IP, networking, and related areas?

    - by mkelley33
    As a relatively-new Python programmer, I'm finding more and more that networking as it relates to the web and web development is becoming increasingly important to understand. When I was an active C# ASP.NET programmer making smaller websites with less responsibility this knowledge seemed less important, since there was often a "networking" guy performing any tasks beyond acquiring a domain name for a client. Which books, websites, presentations, articles, or other resources would you recommend so that I best understand what's happening between the time a user types a URL and receives the rendered HTML? Thanks!

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  • Ruby or Python?

    - by Bobby Tables
    Hi all, This question is extremely subjective and open-ended. It might even sound like something I should just research for myself and make my own decision. But I'd like to put it out there and get some thoughts from others. Long story short - I burned out with the rat race and am on a self-funded sabbatical this year. Much of it is to take a break from the corporate grind and travel around, but I also want to play around with new technologies and do some self-learning projects, to stay up to speed on programming, and well - I just love tinkering with programming, when there's no pressure! Here's the thing: I am a lifetime C/C++/Java programmer. I'm a bit of a squiggly bracket snob since I've been working with this family of languages for my entire programming career. So I'd like to learn a language which isn't so closely syntactically related to this group. What I'm basically looking for is a language which is relatively general purpose, fun to learn, has some new concepts that are different from C++/Java, and has a good community. A secondary consideration is that it has good web development frameworks. A tertiary consideration is that it's not totally academic (read: there are real world jobs out there using it). I've narrowed it down to Ruby or Python. My impression of Ruby is that it is extremely web oriented - that the only real application of it is as a server side scripting language for doing web stuff (mainly Ruby on Rails). For Python I'm not so sure. TL;DR and to put it as succinctly as possible: which of these would be better for a C++/Java guy to learn to get some new perspectives on programming? And which is more open and general purpose and applicable to a wider set of applications? I'm leaning towards Ruby at the moment, but I worry to an extent that it looks like it's used as nothing but a server side web language.

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  • Successful technical communities except for open-source?

    - by Joshua Fox
    Have you ever seen a successful technical community -- e.g. user group, industry organization? Am I asking about a group of software engineers who get together F2F (or maybe online) and discuss technical and industry issues with deep zeal and interest -- a place where meaningful connections are made. Here are the only examples I have ever seen: Open source Maybe the Silicon Valley Java Users' Group Homebrew Computing Club in the '70's This sort of thing does exist in academia. Of course, there are lots of conferences and attempts at user's groups. However, almost all committed, serious software engineers, when asked about this, say "I don't have the time", which means that the organizations are not worthwhile to the best in our profession. Has anyone seen any organizations with an ongoing spirit of enthusiasm from top software engineers?

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  • Is it OK to learn an algorithm from an open source project, and then implement it in a closed source project?

    - by Chris Barry
    Reference The post that started it all In order to clear up the original question I asked in a provocative manner, I have posed this question. If you learn an algorithm from an open source project, is it OK to use that algorithm in a separate closed sourced project? And if not, does that imply that you cannot use that knowledge ever again? If you can use it, what circumstance could that be? Just to clarify, I am not trying to evade a licence, otherwise I would not have asked the question in the first place. I believe this presents a difficult question and it is interesting to know where the debate can end up.

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  • Improving the speed of writing code in C#

    - by Robert Harvey
    Laugh if you want, but I used to develop substantial line-of-business applications in VB6, long before the .NET framework came along. Why, when I was your age, we used to walk two miles in the snow, uphill. Both ways... Love it or hate it, VB6 had a REPL-like feel, and a very rapid development cycle. I would like to know how to come closer to that process in C#. In VB6, I could write a function, execute it, debug it and have it fully functional in a few minutes. I am told this is how the Lisp crowd works. It's a very rapid-fire style of programming. In C# I write a function, then I write a unit test for that function (which is OK, I understand the value of that), then I right-click, run test, wait for the project to compile (takes about 10 seconds right now, which would be an eternity for a REPL loop), and get an exception. Honestly, this feels more like my junior college days, when I used to feed punch cards into a hopper and wait for a printout (exaggerating only slightly for effect). Additionally, my tendency nowadays is to make everything public while I'm testing it. Unit testing with private accessors works fine, but you can't trace through the code (unless, of course, I'm doing something wrong) while you're using them. So what I'd like to know is, what adjustments have you made to your development process in C# to streamline it, and make it possible to write and verify your code very rapidly?

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  • Is Unix/Linux adoption a measure of developer skill? [closed]

    - by adeptsage
    Is Linux/Unix based OS adoption for development (or recreation) a rough measure of the awareness, adaptability and/or skill of a developer, after considering factors like learning curve for effective code testing via the CLI, basic scripting, tweaking, etc. I have no intention of starting flame wars between Windows and Linux as better dev environments, and personal choice of OSes for dev, but what i do wish to know is that - will the level of adaptability of a person who uses a Unix based system be defined by the fact that he programs on a Unix based OS?

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  • Is extreme programming out of date?

    - by KingBabar
    I have stumbled across this graph and I wonder if someone would care to explain the results? As you can see, extreme programming (XP) is practically uninterested and has almost disappeared from searches. The legend is: Blue: Agile Red: Scrum Orange: extreme programming Green: Waterfall source: http://www.google.com/insights/search/#cat=0-5&q=agile%2Cscrum%2Cextreme%20programming%2Cwaterfall&cmpt=q

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  • Do I need to contact a lawyer to report a GPL violation in software distributed on Apple's App Store?

    - by Rinzwind
    Some company is selling software through Apple's App Store which uses portions of code that I released publicly under the GPL. The company is violating the licensing terms in two ways, by (1) not preserving my copyright statement, and not releasing their code under the GPL license and (2) by distributing my GPL-licensed code through Apple's App Store. (The Free Software Foundation has made clear that the terms of the GPL and those of the App Store are incompatible.) I want to report this to Apple, and ask that they take appropriate action. I have tried mailing them to ask for more information about the reporting process, and have received the automated reply quoted below. The last point in the list of things one needs to provide, the “a statement by you, made under penalty of perjury,” sounds as if they mean some kind of specific legal document. I'm not sure. Does this mean I need to contact a lawyer just to file the report? I'd like to avoid going through that hassle if at all possible. (Besides an answer to this specific question, I'd welcome comments and experience reports from anyone who has already had to deal with a GPL violation on Apple's App Store.) Thank you for contacting Apple's Copyright Agent. If you believe that your work has been copied in a way that constitutes infringement on Apple’s Web site, please provide the following information: an electronic or physical signature of the person authorized to act on behalf of the owner of the copyright interest; a description of the copyrighted work that you claim has been infringed; a description of where the material that you claim is infringing is located on the site; your address, telephone number, and email address; a statement by you that you have a good faith belief that the disputed use is not authorized by the copyright owner, its agent, or the law; a statement by you, made under penalty of perjury, that the above information in your Notice is accurate and that you are the copyright owner or authorized to act on the copyright owner’s behalf. For further information, please review Apple's Legal Information & Notices/Claims of Copyright Infringement at: http://www.apple.com/legal/trademark/claimsofcopyright.html To expedite the processing of your claim regarding any alleged intellectual property issues related to iTunes (music/music videos, podcasts, TV, Movies), please send a copy of your notice to [email protected] For claims concerning a software application, please send a copy of your notice to [email protected]. Due to the high volume of e-mails we receive, this may be the only reply you receive from [email protected]. Please be assured, however, that Apple's Copyright Agent and/or the iTunes Legal Team will promptly investigate and take appropriate action concerning your report.

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  • How to promote code reuse and documentation?

    - by Graviton
    As a team lead of about 10+ developers, I would want to promote code reuse. We have written a lot of code-- a lot of them are repetitive over the past few years. The problem now is that a lot of these code are just duplicate of some other code or a slight variation of them. I have started the movement ( discussion) on how to make code into components so that they can be reused for the future projects, but the problem is that I afraid the new developers or other developers who are ignorant of the components will just go forward and write their own thing. Is there anyway to remind the developers to reuse the components/ improve the documentation/ contribute to the underlying component instead of duplicating the existing code and tweaking on it or just write their own? How to make the components easily discover-able, easily usable so that everyone will use it? Edit: I think every developer knows about the benefit of reusable components and wants to use them, it's just that we don't know how to make them discoverable. Also, the developers when they are writing code, they know they should write reusable code but lack of the motivation to do so.

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  • Data structure for pattern matching.

    - by alvonellos
    Let's say you have an input file with many entries like these: date, ticker, open, high, low, close, <and some other values> And you want to execute a pattern matching routine on the entries(rows) in that file, using a candlestick pattern, for example. (See, Doji) And that pattern can appear on any uniform time interval (let t = 1s, 5s, 10s, 1d, 7d, 2w, 2y, and so on...). Say a pattern matching routine can take an arbitrary number of rows to perform an analysis and contain an arbitrary number of subpatterns. In other words, some patterns may require 4 entries to operate on. Say also that the routine (may) later have to find and classify extrema (local and global maxima and minima as well as inflection points) for the ticker over a closed interval, for example, you could say that a cubic function (x^3) has the extrema on the interval [-1, 1]. (See link) What would be the most natural choice in terms of a data structure? What about an interface that conforms a Ticker object containing one row of data to a collection of Ticker so that an arbitrary pattern can be applied to the data. What's the first thing that comes to mind? I chose a doubly-linked circular linked list that has the following methods: push_front() push_back() pop_front() pop_back() [] //overloaded, can be used with negative parameters But that data structure seems very clumsy, since so much pushing and popping is going on, I have to make a deep copy of the data structure before running an analysis on it. So, I don't know if I made my question very clear -- but the main points are: What kind of data structures should be considered when analyzing sequential data points to conform to a pattern that does NOT require random access? What kind of data structures should be considered when classifying extrema of a set of data points?

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  • Which Java web framework do you recommend for intranet webapp (not content website)?

    - by pregzt
    I'm about to start development of small purpose build intranet web application for small software vendor. It will be administration console of the server managing licenses for off-the-shelf software installed by users. There will be a few users who need to be able to sign in, issue a batch of license codes, revoke some, renew outdated, resolve issues, etc. Bear in mind that my customer requires Java for this solution. I'm seasoned Java programmer and before I used different frameworks to implement webapps, mainly Apache Struts in the past and Spring MVC recently. I was wondering what else could you recommend for such specific intranet webapp. I looked at using Google Web Toolkit (possibly with SmartGWT) Ext JS for fancy widgets in UI and REST back-end in SpringMVC SpringMVC with JQueryUI Could you please think of any piece of recommendation with regard to the choice I'm going to made?

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  • Cross-Platform Google Chrome App Installer

    - by Volomike
    I have fallen in love with the Google Chrome App way of making an "app" (and extensions as well). What kind of installer would you recommend (free and/or cheap is preferred) that is cross-platform (Mac, Windows 2000+, Linux (Ubuntu, Debian, Suse, Redhat, or derivatives)) and lets me deploy Google Chrome Apps on workstations? It would need to let me deploy Google Chrome, or update Google Chrome to a particular version, as necessary, in order for my app to work.

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  • Questions to ask interviewer in an Interview

    - by chota
    Hello All, I have an SDET interview upcoming week. I have been preparing since long. It is a good company. I am working as SDET since two year. I wonder what questions should i ask to my interviewer regarding testing and other thing. I would appreciate your help if you give me some sample questions that i should ask to my interviewer during the interview. Some of them i thoughts are a) What type of testing methodologies do you use? Do you have triage meeting everyday? What percentage of code coverage is done by unit tests? I do not find these questions to be more effective, i would appreciate if somebody could help me out in coming out with better question?

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  • Books for MCSD and advice

    - by Mahesha999
    Hi there I am thinking to get certification done for MCSD. http://www.microsoft.com/learning/en/us/certification/cert-mcsd-web-applications.aspx I did found the books for first exam 480 comprising CSS3, HTML5 and JavaScript. However I did not found books for other exams: 486: ASP.NET MVC 4.5 Apps - Will ASP.NET 4 books suffice for this? Should I also learn Web Forms though I have considerable part of it. 487: Windows Azure and Web Services - What book should I use? I seems that the syllabus is too huge and will take considerable time. Anyone suggesting any advice to complete such exams, since this is going to be my first such. How should I prepare? Should I give this exam? Will it help? Sorry I know I asked many questions here in one questions - a bad practice but the books-question is a big concern for me.

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  • tail-like view on HTML logfiles

    - by h0b0
    I'm working on an application that creates HTML log files. I'm tired of having to manually reload and scroll to the bottom in the browser to see the latest entries. A solution that does not really satisfy me is using the Firefox plugins ReloadEvery and ScrollyFox. In many situations reloading frequency and scrolling speed are just to slow. Of course I could actually use tail, but I would prefer a rendered HTML page. Do you have any suggestions? Firefox extensions are preferred, but any other tip is appreciated, too.

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  • const vs. readonly for a singleton

    - by GlenH7
    First off, I understand there are folk who oppose the use of singletons. I think it's an appropriate use in this case as it's constant state information, but I'm open to differing opinions / solutions. (See The singleton pattern and When should the singleton pattern not be used?) Second, for a broader audience: C++/CLI has a similar keyword to readonly with initonly, so this isn't strictly a C# type question. (Literal field versus constant variable in C++/CLI) Sidenote: A discussion of some of the nuances on using const or readonly. My Question: I have a singleton that anchors together some different data structures. Part of what I expose through that singleton are some lists and other objects, which represent the necessary keys or columns in order to connect the linked data structures. I doubt that anyone would try to change these objects through a different module, but I want to explicitly protect them from that risk. So I'm currently using a "readonly" modifier on those objects*. I'm using readonly instead of const with the lists as I read that using const will embed those items in the referencing assemblies and will therefore trigger a rebuild of those referencing assemblies if / when the list(s) is/are modified. This seems like a tighter coupling than I would want between the modules, but I wonder if I'm obsessing over a moot point. (This is question #2 below) The alternative I see to using "readonly" is to make the variables private and then wrap them with a public get. I'm struggling to see the advantage of this approach as it seems like wrapper code that doesn't provide much additional benefit. (This is question #1 below) It's highly unlikely that we'll change the contents or format of the lists - they're a compilation of things to avoid using magic strings all over the place. Unfortunately, not all the code has converted over to using this singleton's presentation of those strings. Likewise, I don't know that we'd change the containers / classes for the lists. So while I normally argue for the encapsulations advantages a get wrapper provides, I'm just not feeling it in this case. A representative sample of my singleton public sealed class mySingl { private static volatile mySingl sngl; private static object lockObject = new Object(); public readonly Dictionary<string, string> myDict = new Dictionary<string, string>() { {"I", "index"}, {"D", "display"}, }; public enum parms { ABC = 10, DEF = 20, FGH = 30 }; public readonly List<parms> specParms = new List<parms>() { parms.ABC, parms.FGH }; public static mySingl Instance { get { if(sngl == null) { lock(lockObject) { if(sngl == null) sngl = new mySingl(); } } return sngl; } } private mySingl() { doSomething(); } } Questions: Am I taking the most reasonable approach in this case? Should I be worrying about const vs. readonly? is there a better way of providing this information?

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  • RMS java web framework

    - by Kamil Tomšík
    We're currently reconsidering technologies and frameworks to get more agile with "simple" RMS CRUD-based projects. In short, short-living things like this Right now we have custom extension on top of SmartGWT but after some time it has proven not to be enough flexible. I also personally dislike that java-js compilation process and the whole GWT codebase. Not only its ugly designed, it also makes certain low-level js things very complicated if not completely impossible. So what I'm looking for is: closest to web as possible, like JSF or possibly Tapestry, it is very important to be able get "low" and weave framework if necessary. Happens more often than we thought. datagrid capable - Ext.js & PrimeFaces looks pretty good, Vaadin does too. db-schema generators (optional, no matter in which way) If it were only on me, I'd probably stick to Ext.js + custom rest-based java solution, possibly generated from database schema (not sure about concrete tooling yet) I only does have experience with vanilla Ext.js, vanilla GWT and JSF 2.0 / Seam, so it kinda hard for me to judge or even propose other frameworks. What would be your proposition? What are the problems you've faced, what was your solution and how hard do you think it was to deal with them in "big picture"?

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