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Developing Information Systems: Practical guidance for IT professionals by Pete Thompson, Debra Paul, Alan Paul, Lynda Girvan, Julian Cox, Tahir Ahmed, James Cadle

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2      LIFECYCLE TYPES AND THEIR RATIONALES

Lynda Girvan

CONTENTS OF THIS CHAPTER

This chapter covers the following topics:

  • introduction to system development lifecycles;
  • what we mean by ‘system development lifecycle’;
  • comparing linear and evolutionary approaches;
  • lifecycles based on the linear approach;
  • lifecycles based on the evolutionary approach;
  • the impact of Agile;
  • hybrid approaches;
  • how to decide on an approach.

INTRODUCTION TO SYSTEM DEVELOPMENT LIFECYCLES

A system development lifecycle (SDLC) is a framework describing a process for understanding, planning, building, testing and deploying an information system. The process can apply to both hardware and software systems, as a system can be composed of hardware only, software only, ...

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