Variables of Information System
Following are variables of Information System;
- Level of Management
- Operational Data
- Decision Making
- Efficiency
And there are 9 major types of Information System;
- Management Information System
- Operational Information System
- Office Automation System
- Transaction Processes System
- Financial Information System
- Executive Information System
- Executive Support System
- Expert System
- Decision Support System
1. Management Information System
Level of Management
Used by Middle and top level Managers
Operational Data
Low volume of data, medium term planning and for strategic Decision making.
Decision Making
Broadly it provides tools to the strategic level managers for decision making of business functions.
Efficiency
It is an efficient system, use fewer resources related to traditional function of business.
2. Operational Information System
Level of Management
It is used by Operational Managers
Operational Data
High volume of data are there, and the current data are used to implement goals and objectives.
Decision Making
It uses decision making for managing and directing activities
Efficiency
Not that much an efficient system as resource consumption is high.
3. Office Automation System
Level of Management
It is used at all three levels of management.
Operational Data
It uses the internal data and is useful for compiling and presenting MIS reports and presentations.
Decision Making
It operates on all the level of management so decision making activities are also used by all three level of managers.
Efficiency
It is an efficient system use less resources because of applications like Microsoft word.
4. Transaction Processes System
Level of Management
It is used by Operational/Low Level managers.
Operational Data
High volume of data is required from minute day to day activities
Decision Making
It utilizes decision making to manage daily transactions.
Efficiency
Effort consumption is high for routine tasks, not an efficient system.
5. Financial Information System
Level of Management
It is used on all three levels of management.
Operational Data
Only that data are required that utilizes to make financial reports
Decision Making
It uses decision making authorities for financial forecasting and planning.
Efficiency
Efficiency reduces because of the need of high resources for financial reporting
6. Executive Information System
Level of Management
It works on Strategic/top level management
Operational Data
The data from DSS and the volume of data is high because data are used for organizational productivity.
Decision Making
The decision making helps mangers to solve issues and recognize opportunities
Efficiency
High need of resources to find accurate information for organizational productivity.
7. Executive Support System
Level of Management
It is used by strategic/top level managers for personal productivity.
Operational Data
Only the data uses for personal productivity purpose.
Decision Making
It uses decision support capabilities
Efficiency
Uses high resources for data analysis and personal productivity tools.
8. Expert System
Level of Management
It works on tactical/middle level of management
Operational Data
Data is collected using expert experience, helps management makes decisions.
Decision Making
Expert system has their own intelligence for decision making and relies on database of “if”, “then” rules.
Efficiency
An efficient system because of the use of its own intelligence for decision making.
9. Decision Support System
Level of Management
The DSS are used by top/strategic managers
Operational Data
Data from both TPS and MIS are taken but the data is highly unstructured, it involves solving a problem or taking a decision.
Decision Making
The decision making authorities are utilized to solve unstructured problem.
Efficiency
It uses high resources and data from other system to carry out its function.
November 19, 2018