Page 254 - DMGT505_MANAGEMENT_INFORMATION_SYSTEM

Unit 13: Redesigning the Organization with Information Systems

Increase the Precision of Production Notes

For many products, one key way to achieve quality is make the production process more precise
and decrease the amount of variation from one part to another.

Self Assessment

Fill in the blanks:
8. The concept of ................................... is used to make quality the responsibility of all people
and functions within an organization.
9. The fewer step in process the less time and opportunity for an .................................. to occur.

13.4 System Analysis

System analysis is a relatively new field in the knowledge of mankind but demand for system
analysis existed many centuries before the introduction of computers. In mid 19 century,
practitioners in labour, organisation and methodology had established many improved methods
of working. This is the first approach to system analysis. With the development of information
technology, system analysis too, develops more and more vigorously and has a significant role
in a life cycle of an IT application and of IT projects in general. At the moment, there is no
method that ensures success and that can be viewed as a “right” way for analysis but the
application of structured system analysis increases the chance of success for most of typical
applications and it proves efficient in a range of analysis in real life.
Until today, system approach was still viewed as a sound foundation for structured system
analysis. Structural system analysis is a modern approach to different analysis and design phrases
of the system development process, which is accepted because of its advantages over other
traditional approaches.

The structural system analysis has the following main characteristics:
 The system is developed in the top-down order.
 During system analysis and design, several tools, techniques and models are used to
record and analyze the current system and new requirements of the users, and define a
format for the future system.

 The major tools used in structural system analysis include, function diagram, data flow
diagram, data dictionary, process specification and entity relationship diagram.
 Separation between physical model and logical model. A physical model is often used in
surveying the current system and designing the new system while a logical model is used
in analyzing system’s requirements. This is a significant advantage brought about by the
structural system analysis method.
 Acknowledging users’ role in different steps of system development.
 Different steps in structural analysis and designing can be carried out at the same time
rather than in one by one order. Each step can improve the analysis and designing made
in the previous step.

 Structural analysis is supported by advanced technology in both hardware and software,
therefore system development with this method is less complicated.
 Structural analysis when put together with the prototype method can help users and
analysts to have an idea of the new system and help make best use of both methods.

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