Software
A software product is a complex “system” that is made up of many collaborating parts. It is not sufficient to simply decompose software requirements and allocate them to software components and units. Software IPPD must resolve design challenges and complexity by establishing the product architecture. The development of the functional architecture addresses software control flow, data exchanges, performance, resource utilization, and detection and response to failure conditions. The physical architecture addresses the manner in which software structural units and components collaborate and are integrated to comprise the final software product. The software architecture represents the design of the software product with sufficient information to permit structural units and component behaviors to be specified.