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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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4      MAKING A BUSINESS CASE

James Cadle

CONTENTS OF THIS CHAPTER

This chapter covers the following topics:

  • the purpose of a business case;
  • the business case and the development lifecycle;
  • checking feasibility;
  • elements of a business case;
  • identifying, evaluating and selecting options;
  • principles of cost–benefit analysis;
  • principles of risk and impact analysis;
  • investment appraisal techniques;
  • references and further reading.

THE PURPOSE OF A BUSINESS CASE

As Chapter 3 demonstrated, an IT system is not – or should not be – developed for its own sake but because an organisation has a business need that can be met through it. The organisation may wish to lower its operating costs, or improve the customer’s experience or it may need to comply ...

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