Introduction

In general, a System is based on Input-Process-Output (IPO model). Manual work can be replaced by computerized system for accuracy and speed of processing. So, before the development of any computerized system, developers should also understand all basic concepts about the system. To develop a system, a standard Methodology must be considered. Different approaches are available for the development of a system. Selecting the best approach is the responsibility of systems analyst and this selection is based on the requirements of end user, problem definition and the infrastructure provided. Standard principles should be followed for the development of good quality software.

Objectives:

After going through this unit, you should be able to:

• learn the concepts related to Systems;
• know about Real Time Systems;
• know about Distributed Systems; and
• learn the process of developing a successful system.