幻灯片注释Lect02.ppt

Software Project Management Software Project Management Software Project Management Lecture 2Software Development Models Overview Introduction Technical plan Software process models Selecting process model Definitions Software Process the set of activities, methods, and practices that are used in the production and evolution of software Software Process Model one specific embodiment具体化 of a software process architecture (Humphrey 1990) Why Modelling? To provide a common understanding To locate any inconsistencies, redundancies and omissions To reflect the development goals and provide early evaluation To assist development team to understand any special situation Project Analysis Methodologies Object-Oriented Development (OOD) Structured System Analysis and Design Method (SSADM) Jackson Structured Programming (JSP) Technologies application-building environment knowledge-based system tools Project Characteristics data oriented or control oriented system? general package or application specific? a particular type of system for which specific tools have been developed? safety-critical system? nature of the hardware/software environment? Project Risks Product uncertainty Process uncertainty Resource uncertainty Considerations for Project Approach Control systems Information systems General applications Specialized techniques Hardware environment Safety-critical systems Imprecise requirements Technical Plan Contents Constraints Approach Implementation Implications Technical Plan - Constraints Character of the system to be developed Risks and uncertainties of the project User requirements concerning implementation Technical Plan - Approach Selected methodology or process model Development methods Required software tools Target hardware/software environment Technical Plan - Implementation Development environment Maintenance environment Training Technical Plan - Implications Project products and activities effect on schedule duration and overall project effort Financial r