Name: Jecca Cervero

Section: O0C

            Book: Systems Analysis And Design /Sixth Edition

            Author: Kenneth E. Kendall, Julie E. Kendall

            Reference No.: QA 76.9 S88 K45 2005

Chapter:  Chapter 1

Quote:   Information Systems are developed for different purposes, depending on the needs of the business

Review:

Types of Systems

A systems analyst may be involved with any or all of these systems:

Operational Level

• Transaction Processing Systems (TPS)

Computerized information systems that were developed to process large amounts of data for routine business transactions such as payroll and inventory.

Knowledge Level

• Office Automation Systems (OAS)

Support data workers, who do not usually create new knowledge but rather analyze information so as to transform data or manipulate it in some way before sharing it with, or formally disseminating it throughout, the organization and, sometimes, beyond.

• Knowledge Work Systems (KWS)

Support professional workers such as scientists, engineers, and doctors by aiding them in their efforts to create new knowledge and by allowing them to contribute it to their organization or to society at large.

Higher Level

• Management Information Systems (MIS)

Computerized information system that work because of the purposeful interaction between people and computers. it supports a broader spectrum of organizational tasks than transaction processing systems, including decision analysis and decision making.

• Decision Support Systems (DSS)

It emphasizes the support of decision making in all its phases. it is similar to the traditional management information system because they both depend on a database or a source of data.

Strategic Level

• Executive Support Systems (ESS)

Help executives organize their interactions with the external environment by providing graphics and communications support in accessible places. ESS also extend and support the capabilities of executives, permitting them to make sense of their environments.

• Group Decision Support Systems (GDSS)

Intended to bring a group together to solve a problem with the help of various supports such as polling, questionnaires, brainstorming, and scenario creation.

• Computer-Supported Collaborative  Work Systems (CSCWS)

A more general term where GDSS or Group Decision Support Systems were discussed. It may include software support called groupware for team collaboration via networked computers.