Hệ thống phần mềm cho các doanh nghiệp cần phải được thiết kế sau khi một phân tích chuyên sâu. Khi hệ thống phần mềm ngày càng trở nên phức tạp hơn, nó trở nên ngày càng khó khăn để phân tích một cách chính xác các yêu cầu và chuyển đổi chúng thành một thiết kế phù hợp. Vì vậy, các công cụ cần thiết để đối phó với sự phức tạp này. Phân tích và thiết kế hướng đối tượng (OOAD) cung cấp cho bạn những công cụ cần thiết để phân tích và thiết kế các hệ. | Introducing Object-Oriented Analysis and Design Chapter 1 Software systems for enterprises need to be designed after an in-depth analysis. As software systems become more and more complex it becomes increasingly difficult to correctly analyze the requirements and convert them into an appropriate design. Therefore tools are required to deal with this complexity. Object-Oriented Analysis and Design OOAD provide you the necessary tools to analyze and design complex software systems. This chapter introduces the various phases of the software development life cycle SDLC and discusses the various software development approaches. Then it discusses the object-oriented concepts and explains the role of OOAD in software development. Objectives In this chapter you will learn to fl Identify the various software development approaches fl Identify the role of OOAD in SDLC Understanding Software Development Life Cycle SDLC Before the acceptance of software development as an engineering stream the process of developing software was an ad hoc activity with no formal rules or standards. As a result software projects faced serious problems in terms of schedule slippage cost overrun and inferior quality of software. SDLC was introduced to address the problems faced during the software development process. SDLC is a disciplined and systematic approach that divides the software development process into various phases such as requirement analysis design and coding. The phase-wise development process helps you track schedule cost and quality of the software projects. Overview of SDLC Phases There are six phases in SDLC Feasibility analysis Includes analysis of project requirements in terms of input data and desired output processing required to transform input into output cost-benefit analysis and schedule of the project. The feasibility analysis also includes the technical feasibility of a project in terms of available software tools hardware and skilled software professionals. At the .
