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United States

US Requirement For Software Dev Certification Raises Questions 228

Posted by samzenpus
from the outsatnding-achievment-in-the-field-of-excellence dept.
dcblogs writes "U.S. government contracts often require bidders to have achieved some level of Capability Maturity Model Integration (CMMI). CMMI arose some 25 years ago via the backing of the Department of Defense and the Software Engineering Institute at Carnegie Mellon University. It operated as a federally funded research and development center until a year ago, when CMMI's product responsibility was shifted to a private, profit-making LLC, the CMMI Institute. The Institute is now owned by Carnegie Mellon. Given that the CMMI Institute is now a self-supporting firm, any requirement that companies be certified by it — and spend the money needed to do so — raises a natural question. 'Why is the government mandating that you support a for-profit company?' said Henry Friedman, the CEO of IR Technologies, a company that develops logistics defense related software and uses CMMI. The value of a certification is subject to debate. To what extent does a CMMI certification determine a successful project outcome? CGI Federal, the lead contractor at Healthcare.gov, is a veritable black belt in software development. In 2012, it achieved the highest possible Capability Maturity Model Integration (CMMI) level for development certification, only the 10th company in the U.S. to do so."
Programming

Not All Bugs Are Random 165

Posted by timothy
from the especially-not-bees dept.
CowboyRobot writes "Andrew Koenig at Dr. Dobb's argues that by looking at a program's structure — as opposed to only looking at output — we can sometimes predict circumstances in which it is particularly likely to fail. 'For example, any time a program decides to use one or two (or more) algorithms depending on an aspect of its input such as size, we should verify that it works properly as close as possible to the decision boundary on both sides. I've seen quite a few programs that impose arbitrary length limits on, say, the size of an input line or the length of a name. I've also seen far too many such programs that fail when they are presented with input that fits the limit exactly, or is one greater (or less) than the limit. If you know by inspecting the code what those limits are, it is much easier to test for cases near the limits.'"
Classic Games (Games)

Prince of Persia Level Editor 'Apoplexy' Reaches 2.0 44

Posted by timothy
from the add-your-high-school dept.
An anonymous reader writes "Last year, Jordan Mechner, the creator of the Prince of Persia video game franchise, released the long-thought-lost original Apple II source code for Prince of Persia. Today marks the release of version 2.0 of apoplexy, the free and open-source level editor of Prince of Persia for DOS. Roughly 5.5 years after its initial release, support has been added for editing Prince of Persia 2 levels in both GNU/Linux and Windows. The game has its 25th anniversary next year, but the original trilogy only has a (very) small fan community. Will old games such as this also interest future generations or will they gradually lose their appeal because of technological advances?"
Unix

How Ya Gonna Get 'Em Down On the UNIX Farm? 606

Posted by timothy
from the small-useful-pieces dept.
theodp writes "In 1919, Nora Bayes sang, "How ya gonna keep 'em down on the farm after they've seen Paree?" In 2013, discussing User Culture Versus Programmer Culture, CS Prof Philip Guo poses a similar question: 'How ya gonna get 'em down on UNIX after they've seen Spotify?' Convincing students from user culture to toss aside decades of advances in graphical user interfaces for a UNIX command line is a tough sell, Guo notes, and one that's made even more difficult when the instructors feel the advantages are self-evident. 'Just waving their arms and shouting "because, because UNIX!!!" isn't going to cut it,' he advises. Guo's tips for success? 'You need to gently introduce students to why these tools will eventually make them more productive in the long run,' Guo suggests, 'even though there is a steep learning curve at the outset. Start slow, be supportive along the way, and don't disparage the GUI-based tools that they are accustomed to using, no matter how limited you think those tools are. Bridge the two cultures.'" Required reading.
Games

Developing Games On and For Linux/SteamOS 145

Posted by Soulskill
from the year-of-linux-on-the-console dept.
An anonymous reader writes "With the release of SteamOS, developing video game engines for Linux is a subject with increasing interest. This article is an initiation guide on the tools used to develop games, and it discusses the pros and cons of Linux as a platform for developing game engines. It goes over OpenGL and drivers, CPU and GPU profiling, compilers, build systems, IDEs, debuggers, platform abstraction layers and other tools."
Ruby

Ruby 2.1.0 Released 65

Posted by Soulskill
from the not-dying-after-all dept.
Today marks the release of Ruby version 2.1.0. A brief list of changes since 2.0.0 has been posted, and file downloads are available. Here are some of the changes:
  • Now the default values of keyword arguments can be omitted. Those 'required keyword arguments" need giving explicitly at the call time.
  • Added suffixes for integer and float literals: 'r', 'i', and 'ri'.
  • def-expr now returns the symbol of its name instead of nil.
  • rb_profile_frames() added. Provides low-cost access to the current ruby stack for callstack profiling.
  • introduced the generational GC a.k.a RGenGC (PDF).
Databases

Why Don't Open Source Databases Use GPUs? 241

Posted by Unknown Lamer
from the connection-machines-rise-from-the-grave dept.
An anonymous reader writes "A recent paper from Georgia Tech (abstract, paper itself) describes a system than can run the complete TPC-H benchmark suite on an NVIDIA Titan card, at a 7x speedup over a commercial database running on a 32-core Amazon EC2 node, and a 68x speedup over a single core Xeon. A previous story described an MIT project that achieved similar speedups. There has been a steady trickle of work on GPU-accelerated database systems for several years, but it doesn't seem like any code has made it into Open Source databases like MonetDB, MySQL, CouchDB, etc. Why not? Many queries that I write are simpler than TPC-H, so what's holding them back?"
Ruby

Is Ruby Dying? 400

Posted by Soulskill
from the netcraft-confirms-it dept.
New submitter John Moses writes "I have been working with node.js a lot lately, and have been discussing with co-workers if node.js is taking steam away from Ruby at all. I think the popularity of the language is an important talking point when selecting a language and framework for a new project. A graph on the release date of gems over time could help determine an answer. The front page of RubyGems only shows data on the most popular, but I am really interested in seeing recent activity. My theory is that if developers' contributions to different gems is slowing down, then so is the popularity of the language."
Firefox

Asm.js Gets Faster 289

Posted by timothy
from the getting-better-all-the-time dept.
mikejuk writes "Asm.js is a subset of standard JavaScript that is simple enough for JavaScript engines to optimize. Now Mozilla claims that with some new improvements it is at worst only 1.5 times slower than native code. How and why? The problem with JavaScript as an assembly language is that it doesn't support the range of datatypes that are needed for optimization. This is good for human programmers because they can simply use a numeric variable and not worry about the difference between int, int32, float, float32 or float64. JavaScript always uses float64 and this provides maximum precision, but not always maximum efficiency. The big single improvement that Mozilla has made to its SpiderMonkey engine is to add a float32 numeric type to asm.js. This allows the translation of float32 arithmetic in a C/C++ program directly into float32 arithmetic in asm.js. This is also backed up by an earlier float32 optimization introduced into Firefox that benefits JavaScript more generally. Benchmarks show that firefox f32 i.e. with the float32 type is still nearly always slower than native code, it is now approaching the typical speed range of native code. Mozilla thinks this isn't the last speed improvement they can squeeze from JavaScript. So who needs native code now?"
Education

Is Computer Science Education Racist and Sexist? 612

Posted by timothy
from the what-the-does-the-magic-8-ball-say dept.
theodp writes "What's wrong with this picture?" asked Code.org at its launch earlier this year, lamenting the lack of Computer Science students in a race and gender reference-free infographic. But as the organization has grown via public/private partnerships and inked agreements to drive the CS curriculum for the Chicago and NYC school systems, the same stats webpage has adopted a new gender and racial equity focus, positioning Computer Science education as "a chance to level the playing field" for women, Hispanic and African American students. The new message is consistent with the recently-forged Code.org partnership with the NSF-funded Exploring Computer Science (ECS, "a K-12/university partnership committed to democratizing computer science") and Computer Science Principles (CSP, "a new course under development that seeks to broaden participation in computing and computer science"). According to The Research Behind ECS, an "insidious 'virtual segregation' that maintains inequality" is to blame for keeping the number of African Americans and Latino/as CS students disproportionately low. So, what might the future of Code.org's proposed equity-based U.S. K-12 CS education look like? "Including culturally relevant instructional materials represented a driving focus of our course development," explained ECS Team members who now advise Code.org. "Cultural design tools encourage students to artistically express computing design concepts from Latino/a, African American, or Native American history as well as cultural activities in dance, skateboarding, graffiti art, and more. These types of lessons are important for students to build personal relationships with computer science concepts and applications – an important process for discovering the relevance of computer science for their own life." And — ironically for Code.org — it could mean less coding."
Medicine

Ask Slashdot: Working With Others, As a Schizophrenic Developer? 218

Posted by timothy
from the brains-play-tricks-sometimes dept.
An anonymous reader writes: "I hope there are a few open source developers on Slashdot who understand this. As a developer who works alone and remotely (while living with my own family) — and is schizophrenic — there would be times I would feel very high (a surge of uncontrollable thoughts), or low because of the kind of failures that some patients with mental illness would have, and because of the emotional difficulty of being physically alone for 8 hours a day. This led me to decide to work physically together with my co-workers. Have you been in this situation before? If you have, how well did you manage it? (Medications are a part of the therapy as well.)"
Bug

Obamacare and Middle-Wheel-Wheelbarrows 199

Posted by timothy
from the well-here's-where-your-problem-is dept.
davecb writes "The Obamacare sign-up site was a classic example of managers saying 'not invented here' and doing everything wrong, as described in Poul-Henning Kamp's Center Wheel for Success, at ACM Queue." It's not just a knock on the health-care finance site, though: "We are quick to dismiss these types of failures as politicians asking for the wrong systems and incompetent and/or greedy companies being happy to oblige. While that may be part of the explanation, it is hardly sufficient. ... [New technologies] allow us to make much bigger projects, but the actual success/failure rate seems to be pretty much the same."
KDE

Kdenlive Developer Jean-Baptiste Mardelle Has Been Found 85

Posted by timothy
from the just-in-time-for-the-solstice dept.
jones_supa writes "A month ago there was worry about Kdenlive main developer being missing. Good news guys, Jean-Baptiste Mardelle has been finally reached and is doing fine. In a new mailing list post by Vincent Pinon, he says he managed to find Mardelle's phone number and contacted the longtime KDE developer. It was found out that Mardelle took a break over the summer but then lost motivation in Kdenlive under the burden of the ongoing refactoring of the code. Pinon agreed that there are 'so many things to redo almost from scratch just to get the 'old' functionalities'. The full story can be read from the kdenlive-devel mailing list. After talking with Jean-Baptiste, Vincent has called upon individual developers interested in Kdenlive to come forward. Among the actions called for is putting the Git master code-base back in order, ensuring the code is in good quality, provide new communication about the project, integrate new features like GPU-powered effects and a Qt5 port, and progressively integrate the new Kdenlive design."
Programming

IDC: 40 Percent of Developers Are 'Hobbyists' 148

Posted by Soulskill
from the fewer-than-expected dept.
itwbennett writes "A new IDC study has found that 'of the 18.5 million software developers in the world, about 7.5 million — roughly 40 percent — are so-called hobbyist developers,' which by IDC's definition is 'someone who spends 10 hours a month or more writing computer or mobile device programs, even though they are not paid primarily to be a programmer.' Lumped into this group are students, people hoping to strike it rich with mobile apps, and people who code on the job but aren't counted among the developer ranks."
KDE

KDE Releases Applications and Development Platform 4.12 44

Posted by samzenpus
from the check-it-out dept.
KDE Community writes "The KDE Community is proud to announce the latest major updates to KDE software delivering new features and fixes. With Plasma Workspaces and the KDE Platform frozen and receiving only long term supportt, those teams are focusing on the technical transition to Frameworks 5. This release marks substantial improvements in the KDE PIM stack, giving much better performance and many new features. Kate added new features including initial Vim-macro support, and games and educational applications bring a variety of new features. The announcement for the KDE Applications 4.12 has more information. This release of KDE Platform 4.12 only includes bugfixes and minor optimizations and features. About 20 bugfixes as well as several optimizations have been made to various subsystems. A technology preview of the Next Generation KDE Platform, named KDE Frameworks 5, is coming this month."

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