Note on Evolution and Forecasting of Requirements: Communications Example
This work addresses requirements forecasting for system designers, but it appears incremental as it builds on existing combinatorial methods.
The paper tackles the problem of forecasting system requirements evolution using a morphological model and combinatorial synthesis, applied to a communications example with a four-phase numerical illustration.
Combinatorial evolution and forecasting of system requirements is examined. The morphological model is used for a hierarchical requirements system (i.e., system parts, design alternatives for the system parts, ordinal estimates for the alternatives). A set of system changes involves changes of the system structure, component alternatives and their estimates. The composition process of the forecast is based on combinatorial synthesis (knapsack problem, multiple choice problem, hierarchical morphological design). An illustrative numerical example for four-phase evolution and forecasting of requirements to communications is described.