Identification of Proposed Alternatives:
(1)The processes through which the conceptual design team conducts what is commonly referred to as trade studies or tradeoff analysis. Definitions for these terms are: (1) trade study is defined as “evaluation of alternatives, based on criteria and systematic analysis, to select the best alternative for attaining determined objectives” (ISO/IEC/IEEE, 2017c, p. 482); and (2) tradeoff analysis is defined as “an analytical evaluation of design options/alternatives against performance, design-to-cost objectives, and life cycle quality factors” (ISO/IEC/IEEE, 2017c, p. 482). The processes invoked for either term result in a number of alternatives and should be designed such that the method will: (1) ensure choices are developed from a formal methodology (2) include some type of mathematical method of comparison that develops and quantifies a variety of criteria used for comparison; and (3) will prescribe the rationality, objectivity, and repeatability used in the analysis. Proposed alternatives should be developed by appending the MGOS tree with a success-tree (ST) that includes OR gates.
Add a description of your specific methods/processes/techniques and associated outcomes here.
The proposed system alternatives are system-level success trees (ST), which represent the proposed system-level alternatives, are detailed Microsoft Visio diagrams pasted into Appendix G – System-level Alternatives (Success Trees)
Alternatives Analysis
The alternatives analysis should describe the quantitative process that specifies how each of the alternatives from the tradeoff analysis or trade studies are formally evaluated. The processes should require the use of a tradeoff-matrix to keep track of evaluation criteria and remarks for each alternative. The processes should also explicitly state that alternatives are to be evaluated in terms of their ability to meet the MGOS’s technical and performance capabilities while simultaneously balancing these against a finite number of feasibility issues (i.e., cost, sustainment concerns, technical maturity, risk, etc.). The evaluation of alternatives is most often conducted using a Microsoft Excel spreadsheet which form a decision matrix.
Add a description of your specific methods/processes/techniques and associated outcomes here.
The system alternatives trade-off matrix is most often a Microsoft Excel worksheet pasted within the body of the Design Report (not as a separate file). The Excel Tables should be displayed so that the reader can clearly understand how the evaluation was conducted and a final system solution was selected.
System-level solution
The process where a final review of the tradeoff solution matrix is conducted, the criteria are formally documented, and the alternatives are ranked in recommended order. The process should describe the use of an outside group of experts who are able to objectively review the results of the feasibility analysis
