What constitutes a good model? A model should use a standard notation be understandable by clients and users lead software engineers to have insights about the system provide abstraction Models are used to help create designs to permit analysis and review of those designs as the core documentation describing the system www.oseng.com O Lethbridge/Laganiere 2001 Chapter 5: Modelling with classes© Lethbridge/Laganière 2001 Chapter 5: Modelling with classes 5 What constitutes a good model? A model should • use a standard notation • be understandable by clients and users • lead software engineers to have insights about the system • provide abstraction Models are used: • to help create designs • to permit analysis and review of those designs. • as the core documentation describing the system