"simple set of rules and requirements that dictate how version numbers are assigned and incremented"

""For this system to work, you first need to declare a public API. This may consist of documentation or be enforced by the code itself. Regardless, it is important that this API be clear and precise. Once you identify your public API, you communicate changes to it with specific increments to your version number. Consider a version format of X.Y.Z (Major.Minor.Patch). Bug fixes not affecting the API increment the patch version, backwards compatible API additions/changes increment the minor version, and backwards incompatible API changes increment the major version.

Yes, you can use your old plain Ruby classes in Rails:

"If you have concepts that don't fit neatly into those boxes (persistence, request/response management), you probably want to think about how you would model the idea in question. You can store non-model classes in app/classes, or anywhere else, and add that directory to your load path by doing:

config.load_paths << File.join(Rails.root, "app", "classes")
"

If incorporated in Google Apps for your domain, another blow to traditional enterprise software... (from Official Google Gadgets API Blog)

Een afgeleid werk, dat wil zeggen een aanpassing of uitbreiding, mag je dus alleen ook weer onder de GPL verspreiden. Maar hoe zit dat met een plugin?
"Een plugin die uitsluitend gebruik maakt van de gewone plugin API zou ik beschouwen als een apart werk"

The podcast has really interesting material and interviews, but the closed software development platform/service (with their own proprietary language) they try to promote is not my cup of tea... (exrss tag indicates RSS unsubscription)

"it will take you a day or two at the beginning of every iteration to produce detailed estimates, and it’ll take a few seconds every day to record when you start working on a new task on a timesheet. The benefits, though, are huge: realistic schedules."

Hofstadter’s Law = "A task always takes longer than you expect, even when you take into account Hofstadter’s Law." (And 18 other laws named after - mostly - dead people)

"Firewatir is an tool that allows WATiR (http://www.openqa.org/watir/) scripts written for IE to work with the FireFox browser as well."

"The new API is HTML, and the new winners in the application development marketplace will be the people who can make HTML sing." Clearly-written 2004 essay by Joel Spolsky

"Google Web Toolkit (GWT) is a Java software development framework that makes writing AJAX applications like Google Maps and Gmail easy for developers who don't speak browser quirks as a second language. "

"Options have several costs, which is why we avoid them fairly religiously in WordPress. The most obvious cost is UI clutter — everyone wants their 15 pixels of fame and configuration screens quickly devolve into pages of utterly confusing junk no one u

"WATIR stands for "Web Application Testing in Ruby". Watir is a free, open-source functional testing tool for automating browser-based tests of web applications. It is pronounced water."

"Selenium is a test tool for web applications. Selenium tests run directly in a browser, just as real users do. And they run in Internet Explorer, Mozilla and Firefox on Windows, Linux, and Macintosh. No other test tool covers such a wide array of platfor

"So, my tip for entrepreneurs? It’s all about the long tail. Whatever business your starting, think about how to serve millions of markets of dozens instead of dozens of markets of millions." Joe Kraus (Jotspot) on developing on software solutions for