Open System Architect (OSA) is an application used for modelling a system. OSA currently supports data modelling (physical and logical) with UML in the works. The unique thing about OSA is that it is an Open Source product licensed under the General Publi
Old, but very good article on Singleton (and OO) misunderstand/misuse. From my opinion, a second edition (e.g. "Patterns revisited") of the Patterns book is necessary, though it's horrible that Mr. Vlissides has passed away.