2.6.1 The Schedule as Independent Variable (SAIV) Process for Acquisition of Software‐Intensive Systems
BARRY W. BOEHM, Winsor Brown, LiGuo Huang, Daniel N. Port · INCOSE International Symposium · 2004
Abstract Many system acquisitions do not achieve on‐time delivery because of delays in software development. This paper presents a highly successful approach for on‐time delivery of software‐intensive systems: the Schedule As Independent Variable (SAIV) process. The SAIV process involves prioritization of desired features; scoping a Core Capability of top‐priority features easily achievable within the available schedule; architecting for ease of dropping or adding borderline‐priority features; monitoring progress with respect to plans; and adding or dropping borderline‐priority features to meet the schedule target. The paper summarizes experiences and discusses critical success factors in applying the SAIV acquisition process across a range from small in‐house e‐services projects to very large Government systems of systems.