Introduction--The Creation and Assessment of Alternatives--The Synthesis of Plausible Alternatives--The Structure of Systems--Economic Design Criteria--Cost Estimation--Optimization--The Search for Optimum Conditions--Linear Programming--The Suboptimization of Systems with Acyclic Structure--Macrosystem Optimization Strategies--Multilevel Attack on Very Large Problems--Engineering in the Presence od Uncertainty--Accommodating to Future Developments--Accounting for Uncertainty in Data--Failure Tolerance--Engineering Around Variations--Simulation