Intro to System Analysis and Design

1720 Words Oct 11th, 2010 7 Pages
Introduction to System Analysis and Design 1. INTRODUCTION
Systems are created to solve problems. One can think of the systems approach as an organized way of dealing with a problem. In this dynamic world, the subject System Analysis and Design, mainly deals with the software development activities.
2. Defining Your System
A collection of components that work together to realize some objective forms a system. Basically there are three major components in every system, namely input, processing and output.
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In your system define the different components that are connected to each other and how they are interdependent. Remember the objective of the system demands that some output is produced as a result of processing the suitable
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System Analysis also includes sub-dividing of complex process involving the entire system, identification of data store and manual processes.
The main points you are to discuss in your papers regarding system analysis are: • Specification of what the new system is to accomplish based on the user requirements. • Functional hierarchy showing the functions to be performed by the new system and their relationship with each other. • Function network which are similar to function hierarchy but they highlight those functions which are common to more than one procedure. • List of attributes of the entities - these are the data items which need to be held about each entity (record)
(d) System Design
Based on the user requirements and the detailed analysis of a new system, the new system must be designed. This is the phase of system designing. It is a most crucial phase in the development of a system. Normally, the design proceeds in two stages: • preliminary or general design • Structure or detailed design
Preliminary or general design: In the preliminary or general design, the features of the new system are specified. The costs of implementing these features and the benefits to be derived are estimated. If the project is still
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