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• Tester-Developer communication

  - by HH_

  While a lot is written about developer-developer, developer-client, developer-team manager communications, I couldn't find any text which gives guidelines about tester-developer communication and relation. Whether testers and developers are separate teams or in the same one (in my case, I am a lone tester in an agile development project), I have the belief that how testers are perceived is extremely important in order for testing to be well-accepted, and to serve its goal in enhancing the quality of the project (for example, they should not be viewed as a police force). Any advices, or studies about how a tester should communicate with developers? Thank you

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• Is unit testing or test-driven development worthwhile?

  - by Owen Johnson

  My team at work is moving to Scrum and other teams are starting to do test-driven development using unit tests and user acceptance tests. I like the UATs, but I'm not sold on unit testing for test-driven development or test-driven development in general. It seems like writing tests is extra work, gives people a crutch when they write the real code, and might not be effective very often. I understand how unit tests work and how to write them, but can anyone make the case that it's really a good idea and worth the effort and time? Also, is there anything that makes TDD especially good for Scrum?

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• Extended validation certificate not changing browser bar green in Firefox

  - by Max

  I'm having some problems with an Extended validation certificate on a site that isn't showing the green bar correctly in Firefox. Chrome and IE are working fine. When I load the page the bar appears for a few seconds and then disappears when the page has fully loaded. Someone mentioned it could be because of loading images over HTTPS, but I'm not sure how valid this case is. We have one image on the page that is loaded from another source over HTTPS, the rest of the images are stored in the file system on the server. FYI - its Windows Server 2008 and ASP.net UPDATE: Solved this problem - the style sheet was loading in a Google Font url using http, not https - changed it and now it's working.

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• How to name an subclass that add a minor, detailed thing?

  - by Louis Rhys

  What is the most concise (yet descriptive) way of naming a subclass that only add a specific minor thing to the parent? I encountered this case a lot in WPF, where sometime I have to add a small functionality to an out-of-the-box control for specific cases. Example: TreeView doesn't change the SelectedItem on right-click, but I have to make one that does in my application. Some possible names are TreeViewThatChangesSelectedItemOnRightClick (way too wordy and maybe difficult to read because there is so many words concantenated together) TreeView_SelectedItemChangesOnRightClick (slightly more readable, but still too wordy and the underscore also breaks the normal convention for class names) TreeViewThatChangesSIOnRC (non-obvious acronym), ExtendedTreeView (more concise, but doesn't describe what it is doing. Besides, I already found a class called this in the library, that I don't want to use/modify in my application). LouisTreeView, MyTreeView, etc. (doesn't describe what it is doing). It seems that I can't find a name which sounds right. What do you do in situation like this?

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• Accept keyboard input when game is not in focus?

  - by Corey Ogburn

  I want to be able to control the game via keyboard while the game does not have focus... How can I do this in XNA? EDIT: I bought a tablet. I want to write a separate app to overly the screen with controls that will send keyboard input to the game. Although, it's not sending the input DIRECT to the game, it's using the method discussed in this SO question: http://stackoverflow.com/questions/6446085/emulate-held-down-key-on-keyboard To my understanding, my test app is working the way it should be but the game is not responding to this input. I originally thought that Keyboard.GetState() would get the state regardless that the game is not in focus, but that doesn't appear to be the case.

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• Development platform for 2D web and mobile games

  - by Robert Vella

  Is there a game development platform -- similar to Torque, or Unity -- which can be used to deploy 2D games on the following platforms: Web iOs Android Xbox Live Arcade (Preferred but not required) And which has an integrated or mature physics engine? Perhaps, even a built in editor? I've looked at the following possibilities but I've found something missing in each one. Of course in each case I may be guilty of misconception. Corona SDK (No web deployment, no windows support) Torque 2D (No web deployment) Flash + Flash Punk or Flixel (No native android deployment, and I'm not sure if it is stable on mobile platforms) Unity + SpriteManager2 (Not really optimised for 2D games, and I haven't seen enough advanced 2D examples -- like say platformers -- to really have any confidence in using it for something like this) Has anyone had any luck with this?

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• Is it true that quickly closing a webpage opened from a search engine result can hurt the site's ranking?

  - by Austin ''Danger'' Powers

  My web designer recently told me that I need to be careful not to Google for my business' website, click on its search result link, then quickly close the page (or click back) too many times. He says "Google knows" that I didn't stay on the page, and could penalize my site for having a high click-through rate if it happens too much (it was something along those lines- I forget the exact wording). Apparently, it could look like the behavior of a visitor who was not interested in what they found (hence the alleged detrimental effect on the site's search ranking). This sounds hard to believe to me because I would not have thought any information is transmitted which tells Google (or anyone, for that matter) whether or not a website is still open in a browser (in my case Firefox v25.0). Could there possibly be any truth to this? If not, why might he have come to this conclusion? Is there some click-tracking or similar technology employed by search engines which does something similar? Looking forward to hearing everyone's thoughts.

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• Compatibility of Enum Vs. string constants

  - by Yosi

  I was recently told that using Enum: public enum TaskEndState { Error, Completed, Running } may have compatibility/serialization issues, and thus sometimes it's better to use const string: public const string TASK_END_STATE = "END_STATE"; public const string TASK_END_STATE_ERROR = "TASK_END_STATE_ERROR"; public const string TASK_END_STATE_COMPLETE = "TASK_END_STATE_COMPLETE"; public const string TASK_END_STATE_RUNNING = "TASK_END_STATE_RUNNING"; Can you find practical use case where it may happen, is there any guidelines where Enum's should be avoided? Edit: My production environment has multiple WFC services (different versions of the same product). A later version may/or may not include some new properties as Task end state (this is just an example). If we try to deserialize a new Enum value in an older version of a specific service, it may not work.

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• Why do I have to have CapsLock permanently ON

  - by Patrick Mann

  Initially, I believed this was on OpenOffice problem but Abiword and, indeed, Gedit, display the same problem, so it must be an Ubuntu glitch. I was typing a document and used CapsLock when creating a title. Now, when I turn CapsLock off, everything is in caps - when I turn it on, everything is in lower case. I can cope with this if I leave CapsLock on permanently but this is not what is supposed to happen. CapsLock OFF = NO CAPS (or should do!). Can anybody help with this? I've searched around this forum but, not being much of a forum user, I was unable to find a solution. It's entirely possible that I had a 'finger-fit' and hit a combo of buttons which included CapsLock but I don't remember doing that. I'm running Ubuntu Netbook Edition 10.04 on an HP Intel PC. If you need any more System specific stuff, just shout. Thanks, Patrick

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• Toolbox Mod Makes the Wii Ultra Portable

  - by Jason Fitzpatrick

  Given the social nature of most Wii games, modifying a toolbox to serve as a Wii briefcase to make toting it to a friend’s house easy is only fitting. Courtesy of tinker SpicaJames, we find this simple but effective toolbox modification. James originally started his search by investigating getting a Pelican case for his Wii and accessories. When he found the $125 price tag prohibitive (as many of us would for such a side project) he sought out alternatives. A cheap $12 toolbox, a little impact foam, and some handy work with a pair of tin snips to cut out shapes for the Wiimotes, and he had a super cheap and easy to pack and unpack Wii briefcase. Hit up the link below to check out the pictures of his build. Wii Briefcase (translated by Google Translate) [via Hack A Day] Can Dust Actually Damage My Computer? What To Do If You Get a Virus on Your Computer Why Enabling “Do Not Track” Doesn’t Stop You From Being Tracked

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• xna networking, dedicated server possible?

  - by Jake

  Hi I want to release my xna game to the XBOX platform, but I'm worried about the networking limitations. Basically, I want to have a dedicated (authoritative) server, but it sounds like that is not possible. Which is why I'm wondering about: a.) Using port 80 web calls to php-driven database b.) Using an xbox as a master-server (is that possible?) I like the sound of [b] , because I could write my own application to run on the xbox, and I would assume other users could connect to it similar to the p2p architecture. Anyone able to expand on theory [b] above? or [a] as worst-case scenario?

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• Is having a 'home' navigation item on the home page negative to your sites SEO?

  - by Brady

  My work colleague has recently had conversations with some SEO consultants and after those conversations she has come to the conclusion that having a link to the home page on the home page will have a negative effect on the websites SEO. And because of this we are now building websites that don't have a home link show until you are on any page other than the home page. If the above argument is true then surely then if we are on the about page of a website we shouldn't show a navigation item for the page we are on, and that would the case for any other page of the website... So my question is: Does having a home navigation item on the home page have a negative effect on the websites SEO? And if not: Why has my colleague come to the above conclusion? Could she be misunderstanding something more important about home links on the home page regarding SEO?

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• VOTE by 20 June for OpenWorld Talk on OWB with Non-Oracle Sources

  - by antonio romero

  OWB/ODI Linkedin Group member Suraj Bang has offered a topic through OpenWorld 2010 Suggest-a-Session at Oracle Mix: Extend ETL to Heterogeneous and Unstructured Data Sources with OWB 11gR2 To vote for this talk to appear, click through to: http://bit.ly/owb_km_openworld and click on the "Vote" button. Abstract follows: Beyond basic Oracle-to-Oracle ETL, data warehousing customers need to integrate data from multiple data sources spanning multiple database vendors, file formats(csv, xml, html) and unstructured data sources like pdf's and log files. This session describes experiences extending OWB 11gR2 to extract data from Postgres, SQL Server, MySQL and Sybase, PDF documents, and more for a major banking client's data warehousing project supporting IT operations. This included metadata extraction, custom knowledge module-based ETL and replacing ad-hoc perl and java extraction code with a manageable ETL solution built on OWB's extensible plaform. Note: You must vote for at least two other talks for your vote to count, so if you haven’t already picked your three, also consider: Case Study: Real-Time data warehousing and fraud detection with Oracle 11gR2.

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• Python or C server hosting for indie development

  - by Richard Fabian

  I've written a lot of the game, but it's singleplayer. Now we want to join up and play together. I want to host it like an MMO, but haven't got any personal ability to host (no static IPs or direct access to a reasonable router that will allow me to port forward) so I wondered if there were any free / very cheap hosting solutions for people developing games that need to develop their MMO side. In my case it's a world server for a 2D game where the world map can be changed by the players. So, GAE sounds expensive, as there would be quite a few updates per second (I heard they bill for data updates but not for download, but can't find refernce to billing anywhere on the FAQs) I'd prefer to be able to write the server in python as that's what the game is written in (with pygame), but C is fine, and maybe even better as it might prompt me to write some more performant world generator code ;)

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• Apache cannot find mysql database modules

  - by user809857

  I've created a simple django project and setup a mysql database. My simple project just creates an entry on the database. The project works fine when I use the built in development server provided by django (runserver) and it works well. But when I deployed the project on Apache and mod_Wsgi (Ubuntu server), django could not find 'books', which is in this case my table in the database. The mysql database that I use in runserver and apache are just the same. I also did rebuild the database using sqlall,validate and syncdb of django but still i get the error. What could be wrong with what I'm doing? Thanks

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• Single python file distribution: module or package?

  - by DanielSank

  Suppose I have a useful python function or class (or whatever) called useful_thing which exists in a single file. There are essentialy two ways to organize the source tree. The first way uses a single module: - setup.py - README.rst - ...etc... - foo.py where useful_thing is defined in foo.py. The second strategy is to make a package: - setup.py - README.rst - ...etc... - foo |-module.py |-__init__.py where useful_thing is defined in module.py. In the package case __init__.py would look like this from foo.module import useful_thing so that in both cases you can do from foo import useful_thing. Question: Which way is preferred, and why? EDIT: Since user gnat says this question is poorly formed, I'll add that the official python packaging tutorial does not seem to comment on which of the methods described above is the preferred one. I am explicitly not giving my personal list of pros and cons because I'm interested in whether there is a community preferred method, not generating a discussion of pros/cons :)

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• ALT+SysRq+REISUB hangs at "resetting" (without actually resetting/restarting) in Maverick

  - by Andrei

  I'm trying ALT+SysRq+REISUB to see how it would be used to restart my system safely in case of emergency. However, I find that ALT+SysRq+REISUB hangs at "resetting" (without actually resetting/restarting) in Maverick. All other SysRq combinations appear to work correctly (i.e. ALT+SysRq+REISU). cat /proc/sys/kernel/sysrq returns 0. But I'm not sure it's relevant because ALT+SysRq certainly works. What can I do to have "B" actually restart the system? Thanks!

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• Can't specify window's class in CCSM's Place Windows

  - by Anto

  Following this method, I wanted to "place" some of my windows on specific viewports. For instance, I want Xchat to always start on my top right viewport (x=2, y=1). But after I have set everything up and clicked the "Close" button to validate it (I don't have any other action button, like "OK" or "Apply"), the only thing that get saved up are the viewport X and Y coordinates. The window class (in my case class=Xchat) remains empty. This bug only occurs in the "Windows with fixed viewport" section; it works well in the "Windows with fixed placement mode", for instance. How can I solve or circumvent this issue ?

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• What is the best way to learn how to develop secure applications

  - by Kenneth

  I would like to get into computer security in my career. What are the best ways to learn how to program securely? It seems to me that besides textbooks and taking classes in the subject that perhaps learning how to "hack" would be one of the best ways to learn. My reason for thinking this is the thought that the best way to learn how to prevent someone from doing what you don't want them to is to learn what they're capable of doing. If this is the case, then this poses another question: How would you go about learning to hack in an ethical manner? I definitely don't want to break laws or cause harm in my quest. Thanks for the input!

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• Is there any reason to use "plain old data" classes?

  - by Michael

  In legacy code I occasionally see classes that are nothing but wrappers for data. something like: class Bottle { int height; int diameter; Cap capType; getters/setters, maybe a constructor } My understanding of OO is that classes are structures for data and the methods of operating on that data. This seems to preclude objects of this type. To me they are nothing more than structs and kind of defeat the purpose of OO. I don't think it's necessarily evil, though it may be a code smell. Is there a case where such objects would be necessary? If this is used often, does it make the design suspect?

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• Designing A 2-Way SSL RESTful API

  - by Mithir

  I am starting to develop a WCF API, which should serve some specific clients. We don't know which devices will be using the API so I thought that using a RESTful API will be the most flexible choice. All devices using the API would be authenticated using an SSL certificate (client side certificate), and our API will have a certificate as well ( so its a 2 Way SSL) I was reading this question over SO, and I saw the answers about authentication using Basic-HTTP or OAuth, but I was thinking that in my case these are not needed, I can already trust the client because it possesses the client-side certificate. Is this design ok? Am I missing anything? Maybe there's a better way of doing this?

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• Upcoming User Group Events in 2011

  - by john.orourke(at)oracle.com

  At a recent customer event, someone asked me if Oracle had any plans to re-create the Hyperion Solutions Conference.  Unfortunately the answer is no.  With so many different product lines it would be challenging and costly for Oracle to run separate user conferences for every product line, and it would create too many events for customers with multiple products to attend.  So Oracle Open World is the company's main event for showcasing what's new and what's coming across all product lines.  If customers find Oracle OpenWorld too overwhelming or if the timing is bad, there are a number of other conferences, which are run by Oracle user groups and include a number of sessions focused on Oracle Hyperion EPM and BI products.  Here's a sneak preview of what's coming up for conferences in 2011 where you can network with other Hyperion users and learn what's new and what's coming in our products. Alliance 2011:  This conference is run by the Oracle Higher Education User Group (HEUG).  It's being held March 27 - 30th in lovely Denver, Colorado.  (a great location and time for skiers!)  This event is targeted at customers in Higher Education and Public Sector organizations and is expecting to draw over 3,500 attendees.  There will be a number of sessions focusing on Oracle Hyperion EPM and BI products in the Budgeting track, as well as the Reporting & BI track.  This includes product-focused sessions delivered by Oracle and partners, as well as case studies delivered by customers.  Here's a link to the registration page where you can get more information: http://www.heug.org/p/cm/ld/fid=255 Collaborate 2011:  This conference is run by three different user groups;  OAUG, IOUG and Quest.  It's being held April 10 - 14th in sunny Orlando, Florida.  (yes, sunshine and warmth!)  This event is targeted to customers with Oracle E-Business Suite, PeopleSoft, JD Edwards, Hyperion, Primavera and other products and is expected to draw over 5,000 attendees.  You'll find a number of sessions focused on Oracle Hyperion EPM and BI products in the BI/Data Warehousing/EPM track.  This includes product-focused sessions delivered by Oracle, our partners, and customers as well as a number of customer case studies.  There will also be an exhibit area with a number of demo pods focused on EPM and BI products.  Here's a link to the conference web site where you can get more information: http://collaborate.oaug.org/ Also, please note that the OAUG has a Hyperion SIG that runs focused EPM/Hyperion events throughout the year.  Here's a link to their web site where you can get more information: http://hyperionsig.oaug.org/ Kscope 2011:  Formerly the Kaleidoscope conference, this one is run by the Oracle Developer Tools User Group (ODTUG).  This conference is being held June 26 - 30th in Long Beach, CA. (surf's up!)  Historically, this event has focused on Oracle Development tools, but over the past few years the EPM and BI content has grown with over 100 sessions planned this year.  So this event is becoming a great venue for existing Hyperion customers to learn about the latest developments with Oracle Essbase, Hyperion Planning, Hyperion Financial Management, Oracle BI and other products.   You'll also find hands-on workshops, product demonstrations as well as EPM and BI Symposiums run by Oracle Development staff.  Here's a link to the web site where you can get more details.  http://www.kscope11.com/biepm UKOUG Conference Series:  EPM and Hyperion 2011:  For Hyperion customers in the UK, the UKOUG has a Hyperion SIG that runs a focused conference for EPM and Hyperion products.  The 2011 event is planned for June in London.  Here's a link to the web site for this event where you can get more information: http://hyperion.ukoug.org/default.asp?p=8461 In addition to these conferences, you can also find Oracle EPM and BI content at regional user group meetings globally as well as Marketing events run by Oracle.  Check the events page at www.oracle.com for the details on upcoming Marketing and regional User Group events.  So while Oracle will not be trying to replicate the Hyperion Solutions conference, the good news is that there are a number of other events available where customers can find out what's new and what's coming with Oracle EPM and BI products.  And these events are running at different times of the year in different locations - so you can pick the event that makes the most sense for your company from a timing and location standpoint. I'll be delivering a number of sessions at the Alliance and Collaborate conferences and hope to see many of our loyal customers and partners at these events.  And there's always Oracle OpenWorld coming up in October, for which the planning has already started.  I look forward to seeing you in 2011.

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• Getting fingerprint from Apache certificate (combined with key)

  - by Alois Mahdal

  I have just created a certificate for my Apache SSL host using: make-ssl-cert /usr/share/ssl-cert/ssleay.cnf /etc/ssl/private/myhost.crt Now that is the correct way to get the fingerprint out of it? (So I can keep it in other place for visual comparison---in case I need to connect and really don't trust the network?) openssl sha1 /etc/ssl/private/myhost.crt returns different SHA1 than Opera tells me about the cert. Is this because it's combined with the key? (...or am I spoofed already? :-)).

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• Workflows in SharePoint 2013, Part 1

  - by Sahil Malik

  SharePoint 2010 Training: more information Hooray! My latest article is now online on code-magazine. And this time, it’s about “Workflows in SharePoint 2013” – and there will be a part 2 of this next month. Here is a starter .. If we have been friends for a while, you must know my opinions about workflows in SharePoint 2010 and SharePoint 2007. I didn’t think they were very good, especially from a performance and scalability point of view. Frankly I think Microsoft should have called them “workslows.” Though, I don’t think it was the implementation in SharePoint that was the issue, it was fundamental issues with Workflow Foundation, compounded by the nature of SharePoint that acerbated the issues. Well, I am happy to say that Workflows in SharePoint 2013 are something I feel quite comfortable recommending to anyone, and I hope to make that case in this article. Read more .. Read full article ....

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• Design pattern for isomorphic trees

  - by Peregring-lk

  I want to create a data structure to work with isomorphic tree. I don't search for a "algorithms" or methods to check if two or more trees are isomorphic each other. Just to create various trees with the same structure. Example: 2 - - - - - - - 'a' - - - - - - - 3.5 / \ / \ / \ 3 3 'f' 'y' 1.0 3.1 / \ / \ / \ 4 7 'e' 'f' 2.3 7.7 The first "layer" or tree is the "natural tree" (a tree with natural numbers), the second layer is the "character tree" and the third one is the "float tree". The data structure has a method or iterator to traverse the tree and to make diferent operations with its values. These operations could change the value of nodes, but never its structure (first I create the structure and then I configure the tree with its diferent layers). In case of that I add a new node, this would be applied to each layer. Which known design pattern fits with this description or is related with it?

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