ISDP1: system methodologies-SYSTEM INVESTIGATION UNIT 2

1.0 INTRODUCTION During the life of any organization, there will be new problems, new needs, and a changing environment. These problems and needs call for the organization to investigate current procedures and systems. Are the existing systems adequate? Should a new system be developed, or should the old system be modified? System analysis and design attempt to answer these questions. 2.0 OBJECTIVES By the end of this unit, you should be able to: • Identify the four basic steps of system analysis and design cycle. • Explain the rationale of systems investigation. • Outline the steps in a formalized evaluation procedure. • Describe major internal sources of data. • Explain the sequences in data collection. • Enumerate the techniques of data analysis.