Integration of Design in Distributed Development Using D-Scenario Graph

The distributed delivery model has gained immense importance where the actual software is developed in a distributed manner with a common core component and various regional components interfacing with it. This introduces more complexity in software design as sequence diagrams, which implements the use cases are highly interleaved. We propose a new graphical model named Distributed Scenario Graph (D-SG) to integrate the distributed sequence diagrams to have an overall system view. It is a hierarchical graph that models information regarding interleaving of sequence diagrams of regional and common use cases. We also propose a metrics named Optimum Scenario Paths (OSP) that measures the minimum number of independent paths in the D-Scenario Graph for a particular region as well as for the entire system. Our model will help in identifying the minimum number of test cases required for region specific testing and also gives a measure of the complexity of use cases for any region.