Question

Explain the two approaches in determine the subsystem in MIS.

Answer 1

Answer:

There are two basic approaches for development of MIS :

a) System development life cycle : The system development life cycle have following steps of development :

i) Systems Planning

ii) Systems Analysis

iii) Systems Design

iv) Systems Implementation

v) Systems Operation and Support (System Maintenance)

b) Prototyping : Prototyping is the process of creating an incomplete model of the future full-featured system, which can be used to let the users have a first idea of the completed program or allow the clients to evaluate the program.

Advantages :

i) The designer and implementer can obtain feedback from the users early in the project development.

ii) The client and the contractor can compare that the developing system matches with the system specification, according to which the system is built.

iii) It also gives the engineer some idea about the accuracy of initial project estimates and whether the deadlines can be successfully met.

The process of prototyping involves the following steps :

i) Identify basic requirements.

ii) Develop initial prototype.

iii) Review : The customers, including end-users, examine the prototype and provide feedback for additions or changes.

iv) Revise and Enhance the Prototype : Using the feedback both the specifications and the prototype can be improved. If changes are introduced then a repetition of steps 3 and 4 may be needed.