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Unit 1: Introduction to Information System Development
The registration administrative assistant enters your desired schedule and the computer Notes
immediately prints your statement of classes. The invoices, however, often are printed using
batch processing, meaning all student invoices are printed and mailed at a later date.
Notes Today, most transaction processing systems use online transaction processing.
Some routine processing tasks such as calculating paychecks or printing invoices, however,
are performed more effectively on a batch basis. For these activities, many organizations
still use batch processing techniques.
1.4.6 Stationary and Non-stationary System
The operations and properties of a stationary system do not change significantly while those of
a non-stationary system change with time.
Example: A computerized MIS is a stationary system because once designed, the MIS
handles problems and provides information on a routine basis without any significant changes.
Example: An organizational system that tends to adapt to a changing environment is an
example of a non-stationary system.
1.4.7 Adaptive and Non-adaptive System
Adaptive System tend to adapt to a changing environment while non-adaptive systems do not
adapt.
Example: An organizational system is an adaptive system and a MIS system is a
non-adaptive system.
Stationary system is always non-adaptive while non-stationary systems are adaptive systems.
Self Assessment
Fill in the blanks:
10. A ................................. is an information system that generates accurate, timely and organized
information so managers and other users can make decisions, solve problems, supervise
activities, and track progress.
11. A ................................. is an information system designed to help users reach a decision
when a decision-making situation arises.
12. A ................................. is an information system that captures and processes data generated
during an organization’s day-to-day transactions.
1.5 System Development Strategies
After designing the input and output, the analyst begins developing the software using a
programming language. This is the phase, when the programmers play their major role in
development. They start designing the data structures and writing of programs as per the
documents prepared during design phase. So, this phase can be categorized into two
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