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IBM Rational ClearCase 7.0: Master the Tools That Monitor, Analyze, and Manage Software Configurations by Tatiana Shpichko, Marc Girod

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UCM

UCM was an attempt to raise the level of support, in other words to support "higher-level" concepts directly: components, as a way to structure sets of files; activities and tasks, as a way to attach some meaning to change sets; streams, as a way to relate and transcend labels and branches.

Unfortunately, it didn't build upon the existing sophisticated features of ClearCase (dynamic views, clearmake winkin, and derived object management), and resulted in lowering the build support.

It also forced users to make decisions upfront, and made it from hard to nearly impossible to revise them later.

It finally capitalized on a branching strategy, which was state-of-the-art at the time, but proved counter-productive in retrospect: one dedicated integration ...

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