Toward product architecture oriented requirements analysis for product line development in systems engineering Kei Kurakawa Nara Institute of Science and Technology, Japan Software intensive product (systems) Software VLSI & Electronics Mechanics Reuse of software Features in software intensive product family Commonality & Variability Product family architectural design for multiple disciplines Product architecture drives feature modeling for a domain

2 Static state and dynamic process for product design solutions Static state Dynamic process Design solutions for the product Entity concept Behavior Design solutions for its environment Scenario setting Scenario Requirement constrain Function (Side effect)

3 Function, behavior and entity concept structure – a product design information structure Function tree Behavior structure Entity concept structure Related Scenario structure Related Function AND/OR graph

4 Feature model [Kang et al.1998 ] and software design solutions Feature model as commonality and variability oriented requirements :feature:hierarchical relationship Capability layer Operating environment layer Domain technology layer Implementation technique layer constrain Software abstract models as software design solutions Message sequence diagrams Statecharts Data flow diagrams Component models Architecture models

5 Design solutions and process for multiple disciplines Software Mechanics VLSI & Electronics Requirements analysisDesign and implementation Design solutions for the products Design solutions for its environment Capability Domain technologyImplementation technique Operating environment Design solutions in a domain Design process : A design solution for the product: A design solution for the environment where the product works

6 Product architecture driven feature modeling for a product family A product architecture for a product family is transformed in a feature tree Function tree Behavior structure Entity concept structure Related Scenario structure Related Capability layer Operating environment layer Domain technology layer Implementation technique layer Product architecture for a family Feature tree