Miss Joanne Smith Final Year PhD Student Supervisor: Dr Alex Duffy

1. Research Presentation Day Thursday 24th January 2001 A Holistic Modular Design Methodology Supporting Multiple Views of the Product Development Process Miss Joanne Smith Final Year PhD Student Supervisor: Dr Alex Duffy

2. Introduction Introduction • Introduce • Concept of ‘Modular Design’ • Issues in ‘Modular Design’ research • Discuss • System under development • Current functionality - 2 case studies • Current development- Mast case study • Conclude • Further Work

3. Module A group of ‘functionally or structurally’ independent entities Never truly independent Must define together with overall system The Modular Concept Modular Design • There are Benefits • Efficient upgrades, reduced complexity, reduced costs, rapid product development and improved design knowledge structuring. • However • Modularity is treated in an abstract form • Current lack of systems or approaches to: • Determine modules • Optimise modular design • Represent modularity

4. Modular Design Benefits Issues Modular Design

5. Current Functionality • Models • Concepts (currently components) • Dependency knowledge • Weight the dependencies accordingly • Analyse Modularity • Optimises Component Groupings (modules) • Calculate the relative modularity of the optimum component groupings • Produces a Modular Structure Matrix ‘MSM’ System

6. Concepts (same order – arbitrary) Dependencies (weighting represented by colour) Initial Clustering Value Case Studies B: Alternator A: Climate Control System

7. Clear Component Groupings(Modules) Optimum Clustering Value Optimised Matrices B: Alternator A: Climate Control System

8. Modular Analysis The Modular Structure Matrix B: Alternator A: Climate Control Optimal Modular Structure • Clustering entities such that the degree of interaction/dependency is • Maximised internally within groups (modules) • Minimised externally between groups (modules) System • Colour represent different degrees of modularity • Dark colour = strong module • Exposes inherent modular hierarchy

9. Perspectives Viewpoints Mapping DESIGN ARTEFACT Function, Behaviour, Structure Energy, Information, Spatial Evolves the Design Artefact Supporting Design Knowledge KNOWLEDGE SOURCES Development

10. Development • Mast Case Study • Modular Design • Applied Knowledge Formalism • Dependency Data Workshop • 5 Matrices • 3 Viewpoints Matrices • 4 Perspectives • 2 Concept Mapping Matrices • Utilised to: • Develop System • Test Methodology Development

11. MAPPING MECHANISM MAPPING MECHANISM Causal Links Causal Links Means Modules Technology Transfer Outsourcing Decision Structural Modules DFM/DFA Maintenance Recycling Disposal Function Modules Team Design M S F S M S F F M S S S F M F M M F F F M M S F S M S S M M S S F M F F F S M F M M S S F F S M S F M F S M F M S M F S F S M F F M S M S S F M S F S M M F M F S F S S M F F M M S S M S F F M S M F M M F M F S S F S S F M M F S F S M M F S S F M S F M F S F F M M S S M F F S S M M F S M M F S F S M S M F M S F M S F M F S M S F M F S F M S F F S S M F M M S Developing Functionality Function Means Structure • Support • Modularisation from project inception • Evolution of the modular solution • Maps design concepts from abstract (function) to concrete (solution) Development

12. life-phase objectives Conclusion • Modular Design Methodology Supports • Generated design knowledge • abstract to concrete • Module generation • viewpoints • perspectives • maps evolution of the modular solution • Module exploration • impact of change Supporting System • Determine and optimise modules • Represent modularity throughout design process Further Work • Complete system development • System evaluation • Thesis completion Conclusion

13. Thank You Any Questions?