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Flashcards in System Types by Activity Deck (5):

Purposes of IT systems

1) operational systems - support day-to-day activities of business
A) Often known as transaction processing systems (TPS)

systems process non-financial transactions (placing orders for goods, accepting an order from a customer, etc.) and financial transactions (billing a customer, receiving payment from a customer, paying employees for services rendered)

C) Financial transactions generate debit an credit entries into accounts

D)Accounting systems are transaction processing systems


Management Information Systems (MISs)

Systems designed to support routine management problems based primarily on data from transaction processing systems (TPS)

A) Support management of daily operations - taking planning information data and compare it to actual results in periodic management reports


Accounting information systems (AIS)

Take financial data from transaction processing systems and use it to produce financial statements and control reports - AIS are subset of MIS *****


Decision support systems (DSSs)

Provide information to mid and upper lvl managers to assist them in managing routine problems and in long-range planning

- DSSs unlike MISs frequently include external data in addition to summarized info from TPS

Data -driven Das - process large amounts of data to find relationships and patterns;;;;;Data warehousing and data mining systems are common examples of data-driven DSSs. While these terms are discussed in the lesson on system types by data structure, under the heading "Knowledge Management" they are also important to data-driven DSSs.

Model-driven DSS -- Feed data into a previously constructed model to predict outcomes. For example, if a company increases its product price, by how much will demand for the product decrease?

Executive support systems (ESSs) or strategic support systems (SSSs) -- A subset of DSS especially designed for forecasting and making long-range, strategic decisions; thus, these systems have a greater emphasis on external data


Knowledge work systems

Facilitate the work activities of professional level employees by providing information relevant to their day-to-day activities
1. Usually exist separately from operational systems, but can be integrated.
Office automation systems (OASs) -- Provide similar support to clerical-level employees.
a. Include many of the typical programs found on personal computers: word processing, spreadsheets, end-user databases, etc.

Decks in CPA - BEC Class (62):