Comparative analysis of the sequences of enzymes encoded in a variety of prokaryotic and eukaryotic genomes reveals convergence and divergence at several levels. Functional convergence can be inferred when structurally distinct and hence non-homologous enzymes show the ability to catalyze the same biochemical reaction. In contrast, as a result of functional diversification, many structurally si...

Tools like SourceForge or BSCW have popularized virtual teams through the web. They allow people to work together distributed across space, time and organization. A member of a virtual team can work disconnected on his private copies of shared objects with cycles of divergence-convergence. Divergence occurs when people are working “insulated” in their private workspaces and convergence takes pl...