Yes I forgot to point that out.....The blocks are not directly related to individual features....For example one block can deal with Network Requests and it can

Yes I forgot to point that out.....The blocks are not directly related to individual features....For example one block can deal with Network Requests and it can use another smaller block to cache data....One block for managing thread pools. But I guess one could create a mapping between the set of blocks and the set of features.A feature then would be complete when all its mapped blocks satisfy their test cases.But I am yet to see a project management system based on this approach.