A Hierarchical Modeling Scheme With Non Functional Requirements

This paper presents a sequence of multi domain matrix based modeling scheme, that includes non functional design requirements, to capture conceptual design information. The current matrix based modeling schemes are congruent to the steps followed in typical design processes but are limited to functional requirements. An industrial case study is analyzed to understand how and where the non functional requirements contribute to the design. It is observed from the case study that the non functional requirements drive the design decision process and constrains the way the product functionality is realized. Based on the observations made in the case study, a sequence of multiple domains is proposed: functional requirements to functions, functions to working principle, working principle to non functional requirements, non functional requirements to components, components to design parameters, design parameters to test measures and test measures to tests. This sequence is realized in a matrix based hierarchical modeling scheme, to capture the conceptual design information.