Contact a small, a medium, and a large contract program in your organization.

(a) What types of system architectures are used?

(b) Does the architecture include redundant elements? Were they required by contract?

(c) Are there redundant elements; what is the rationale?

(d) What compelling evidence—such as meeting reliability, availability, and maintainability (RAM)

requirements—drove them to redundancy?

(e) Was redundancy a requirement in the SPS or development specification? Why?