Page 9 - DCAP205_DCAP409_ANALYSIS_AND_DESIGN_OF_INFORMATION_SYSTEMS

Unit 1: Introduction to Information System Development

Notes
Figure 1.1: Stages of Information System Development (MIS)
Investigation
Understand information needs/problem definition.

Develop an information system solution/problem Analysis
analysis and design.

Design
Implement the Information System solution/
Problem Implementation.

Implementation
Implement the information system solution.

Maintenance of the Information system/System Maintenance
Maintenance.

1.1.1 Investigation

This is the first step in preparation of a Management Information System. This stage includes the
preliminary study of proposed information system solution to the end users problems.
Because the development of Management Information System is a time consuming and costly
effort, feasibility studies have to be conducted. This study is a preliminary study which
investigates the information needs of the users and determines the resource requirement, costs,
benefits and feasibility of a proposed project.

1.1.2 Feasibility Study

The goal of feasibility study is to evaluate an alternative system and to propose the most
feasible and desirable systems for development. The feasibility study is conducted in four
different areas:

1. Organizational feasibility
2. Economic feasibility
3. Technical feasibility
4. Operational feasibility.
Figure 1.2 shows the various components of a feasibility study.
The focus of organizational feasibility is on how well a proposed system supports the values
and objectives of the organization.
In economic feasibility, the developer conducts cost/benefit analysis, i.e., whether the cost of
developing a system is more than benefit or loss because, if the development cost increases than
the proposed benefit then the purpose of making Management Information System is defeated
or it is not an efficient Management Information System.
This comprises of the study of the hardware and software requirements, availability of these media
with in the organization or they have to be arranged. It also includes whether we have to develop
our own system or buy some readymade solutions with some modification to meet our needs, etc.

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