A generalized analysis methodology for satellite systems has been developed, and it can be used for the analysis of space system architectures addressing any mission in communications, sensing, or navigation, The generalized information network analysis methodology is a hybrid of information network flow analysis, signal and antenna theory, space systems engineering and econometrics and specifies measurable, unambiguous metrics for the cost, capability, performance, and adaptability. The important contribution of the work is that by standardizing the representation of the overall mission objective, in terms of generalized quality of service parameters, the new methodology organizes, prioritizes, and focuses the engineering effort expended in satellite systems analysis. The generalized methodology is thus identified as a valuable tool for spare systems engineering, allowing qualitative and quantitative assessment of the impacts of system architecture, deployment strategy, schedule slip, market demographics, and technical risk.