Spiral development of software-intensive systems of systems

Commercial, public service, and national security organizations are finding it increasingly attractive to integrate component system capabilities from many different "best of breed" sources to achieve their objectives. In doing so, they find that they are increasingly dependent on software to integrate the systems and to rapidly adapt them in response to competitive opportunities or threats, new technologies, or new organizational priorities. The resulting software-intensive systems of systems (SISOS) offer significant benefits, but come with significant new types of risks, such as simultaneous satisfaction of multiple stakeholders and quality attributes, and integration and rapid adaptation of multiple heterogeneous software products and COTS products. The resulting software-intensive systems of systems (SISOS) offer significant benefits, but come with significant new types of risks, such as simultaneous satisfaction of multiple stakeholders and quality attributes, and integration and rapid adaptation of multiple heterogeneous software products and COTS products. This tutorial provides software engineers, managers and researchers with an understanding of and emerging capabilities for practicing "Software engineering in the very large." It identifies the major opportunities and risks involved in software-intensive systems of systems, presents experience-based techniques for realizing the opportunities and mitigating the risks. It provides extensions of the risk-driven spiral model that are being used for SISOS development processes, and provides case study exercises to give participants experience in applying the techniques in representative situations.