The document outlines the evolution of information systems, highlighting the development and functions of various types such as transaction processing systems (TPS), management information systems (MIS), and decision support systems (DSS). It discusses how these systems support different organizational levels and functions, from operational to strategic management. Additionally, it touches on mobile computing and knowledge management systems as modern advancements in the field.

1. Evolution of
Information System

2. Introduction
 The first business application of computers (in the
mid- 1950s) performed repetitive, high-volume,
transaction-computing tasks.
 The computers” crunched numbers” summarizing
and organizing transactions and data in the
accounting, finance, and human resources areas.
 Such systems are generally called transaction
processing systems (TPSs)

3. „ Management Information Systems (MISs): These systems
access, organize, summarize and display information for
supporting routine decision making in the functional areas.
„ Office Automation Systems( OASs): Such as word
processing systems were developed to support office and
clerical workers.

4. Decision Support Systems: were developed to
provide computer based support for complex,
Non routine decision.
End- user computing: The use or development of
information systems by the principal users of the
systems’ outputs, such as analysts,
managers, and other professionals.

5. Intelligent Support System (ISSs): Include expert systems
which provide the stored knowledge of experts to non
experts, and a new type of intelligent system with
machine- learning capabilities that can learn from
historical cases
Knowledge Management Systems: Support the creating,
gathering, organizing, integrating and disseminating of
organizational knowledge.

6. Data Warehousing: A data warehouse is a database
designed to support DSS, ESS and other analytical and
end-user activities.
Mobile Computing: Information systems that support
employees who are working with customers or business
partners outside the physical boundaries of their
company; can be done over wire or wireless networks.

8. Kinds of Information Systems
1. Organizational Hierarchy
2. Organizational Levels
3. Information Systems

9. General Kinds of IS
 Operational-level systems
 Knowledge-level systems
 Management-level systems

10. Operational-level systems
Support operational managers by monitoring the
day-to-day‘s elementary activities and
transactions of the organization
e.g. TPS.

11. Knowledge-level systems
Support knowledge and data workers in designing
products, distributing information, and coping with
paperwork in an organization.
 e.g. KWS(CAD)
CMS
OAS

12. Management-level systems
 Support the monitoring, controlling, decision-
making, and administrative activities of middle
managers.
 e.g. MIS, DSS

13.  Strategic-level systems
 Support long-range planning activities of senior management.
e.g. ESS
 Executive Support Systems (ESS)
 Management Information Systems (MIS)
 Decision Support Systems (DSS)
 Knowledge Work Systems (KWS)
 Office Automation Systems (OAS)
 Transaction Processing Systems (TPS)
 Transaction Processing Systems (TPS)