Reuse of Requirements Reduces Time to Market

A lot of systems developed in MBT Missiles Division of the Israeli Aerospace Industries are derivations of former deliveries; sometimes they were developed over decades, and were redesigned for different customers or were upgraded as technology was improved. In addition, the requirements management (RM) process in MBT has to comply with an extensive system of systems, a matrix organizational structure and many sub contractors in order to develop the fully operational system. It was obvious that generic sub-systems will be reused in projects of the same product family, which started in reuse of their specification. The only question was in what level of RM the reuse will start between contract requirement to the software and hardware components specifications. Eventually, reuse occurred in all levels of requirements in different ways for different purposes with great improvement of time to market. This paper presents real industrial experience of requirements reuse along with results and analysis that demonstrate the impact of requirements reuse on time to market.