• Various criteria used for classification of information systems are stated below:
  • According to the level of usage (employees used)
  • According to the usage (according to tasks)
  • According to the functions

Information systems according to the level of usage 

• Strategic level
• Management level
• Knowledge level
• Operational level

Users of the information systems according to various levels 

Classification of information systems on usage

• Transaction Processing Systems (TPS)
• Knowledge Work Systems (KWS)
• Office Automation Systems (OAS)
• Management Information Systems (MIS)
• Decision Support System (DSS)
• Executive Support Systems (ESS)

 Classifies information systems according to functions

• Marketing information systems
• Financial and Accounting information systems
• Operation information systems
• Human resource information systems
• Research and Development information systems