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Lecture Introduction to software engineering - Week 2: Software processes. In this chapter, you will learn to: Software process models, process activities, copingwith change, process improvement. | Week 2 Software Processes Nguyễn Thị Minh Tuyền CuuDuongThanCong.com https fb.com tailieudientucntt Topics covered 1. Software process models 2. Process activities 3. Coping with change 4. Process improvement 2 CuuDuongThanCong.com https fb.com tailieudientucntt Definitions What is a process Four activities that are fundamental to software engineering What is process model 3 CuuDuongThanCong.com https fb.com tailieudientucntt The software process A structured set of activities required to develop a software system. 4 fundamental activities p Specification defining what the system should do p Design and implementation defining the organization of the system and implementing the system p Validation checking that it does what the customer wants p Evolution changing the system in response to changing customer needs. A software process model p Is an abstract representation of a process. p Presents a description of a process from some particular perspective. 4 CuuDuongThanCong.com https fb.com tailieudientucntt Software process descriptions When we describe and discuss processes we usually talk about p the activities in these processes such as specifying a data model designing a user interface etc. and p the ordering of these activities. Process descriptions may also include p Products which are the outcomes of a process activity p Roles which reflect the responsibilities of the people involved in the process p Pre- and post-conditions which are statements that are true before and after a process activity has been enacted or a product produced. 5 CuuDuongThanCong.com https fb.com tailieudientucntt Plan-driven and agile processes Plan-driven processes are processes where all of the process activities are planned in advance and progress is measured against this plan. In agile processes planning is incremental and it is easier to change the process to reflect changing customer requirements. In practice most practical processes include elements of both plan-driven and agile