An information system collects, processes, stores, and distributes information, and can include people and computers. An office automation system uses communication technologies and computers to perform official tasks and support activities at all organizational levels. A management information system takes raw data and converts it into summarized reports for managers in areas like sales and human resources. A decision support system interactively provides models, tools, and information to help users analyze options when making decisions. An executive support system is an extension of MIS that helps with non-routine, organization-wide decisions at the top level. A knowledge management system identifies, creates, represents, and distributes insights and experiences from individuals and organizational processes to enable adaptation of knowledge.

1. INFORMATION SYSTEM
• An information system is a formal , socoitechnical ,
organizational system desigined to collect , process ,
store and distribute information.
• A computer information system is a system that is
composed of people and computer that processes or
interprets information . The term is also sometimes
used to simply refer to a computer system with
software installed

2. OFFICE AUTOMATION SYSTEM
• OAS is a collection of communication
technology, computer, person to perform
official tasks
• Executes office transaction support official
activities at every organizational level. These
activities can be divided into clerical and
managerial activities

3. MANAGEMENT INFORMATION
SYSTEMS
• MIS is designed to take relatively raw data
available through a TPS convert them into
summarized , aggregated form for the manager
• Report tending middle management &
operational supervisors
• Summary report, on-demand report, ad-hoc
report, an exception report
Example : sales management system , human
resource management system

4. DECISION SUPPORT SYSTEM (DSS)
• DDS is a interactive info system provides info,
models, data manipulation tools help in making
decision
• DSS comprises tools, tachniques help in
gathering relevant info & analyze option ,
alternatives , end user is major involved in
creating DSS than MIS.
• Example : financial planning system, bank loans
management system.

5. EXECUTIVES SUPPORT SYSTEM
• ESS an extension of MIS in a computer based
information system
• Helps in decision making at all top level
organization.
• Decision taken are non-routine decision , effects
the entire organization and , thus, requre
judgment & sigh

6. KNOWLEDGE MANAGEMENT SYSTEM
• KMS comprises a range of practices used in
organization to indentify , create, represents,
distribute, enable adaption to insight, expreience.
• Such insights and experience comprise
knowledge, either embodied in individual or
embedded in organizational processes &
practices

7. THANK YOU