“Done” is a simple yet often misinterpreted word. To me, it means finished, finalized, and completed. Being done means that there is nothing left to do. Done is simple to define; however, delivering a done Increment remains one of the fundamental and more elusive requirements of Scrum and agility.

what are characteristics of a good story? The acronym "INVEST" can remind you that good stories are: I – Independent; N – Negotiable; V – Valuable; E – Estimable; S – Small; T – Testable.

Critical Mass of Software: the state of a software system when the cost of changing it (enhancement or correcting defects) is less economical than re-writing it.

"Of a software product, describes a condition of the software such that fixing one bug introduces one plus epsilon bugs."

wiki article that actually overview the issue of lag in gaming and three "solutions" to the problem.

tutorial on GUI development in os x

Downloads for SVN (Subversion) packages.