Simulation development alternatives

It is suggested that the use or modification of readily available simulations should be examined as viable alternatives to developing or purchasing software. The author examines the pros and cons of the various alternatives to software development. The development of an in-house air-to-air analysis capability is used as an example. The decision as to whether to build or acquire, and factors for choosing a simulation are presented to show some of the salient points and subtleties involved. This procedure can be divided into roughly five steps: (1) develop top-level simulation specifications; (2) define options/constraints; (3) develop the selection factors and process; (4) survey available software; and (5) perform the selection process