Evolution of global key-system platforms

In this paper, we examine the processes used to globalize AT&T's small key systems, recounting the experiences of the AT&T Partner® key system development team from AT&T Global Business Communications Systems. We trace a product history where a strong North American market has been the tradition. To meet the challenges of a global market, the development team elected a two-phase approach: product reuse and customized development. Reuse includes using existing products and creating new products from parts of existing products. Customized development has evolved in three stages: First, being well versed in the design of key systems for the United States, the development team applied its knowledge and that of AT&T's other international organizations to redesign existing products to meet immediate, global business needs. Many near-term choices were made to meet customer needs and reduce risk. Next, the team examined strategies for developing global platforms. It addressed issues of a shorter development interval and efficient manufacturing. Finally, the team applied this knowledge to gain efficiencies in design and manufacture. It sought the right balance of platforms and compatibility to meet the needs of internal and external global customers.