CIS Final Exam - Chapter 9

- a simplified representation or abstraction of reality
- can be used to: (calculate risks, understand uncertainty, change variables, manipulate time)
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(1) Transaction Processing System (TPS)
(2) Decision Support Systems (DSS)
(3) Executive Information Systems (EIS)

Online Transaction Processing System:
the capturing of transaction and event information technology to:
a. Process the information according to defined business rules
b. Store the Information
c. Updates existing information to reflect new information

Transaction Processing System:
the basic business system that serves the operational level (analysts)

Online Analytical Processing:
the manipulation of information to create business intelligence in support of strategic decision making

Decision Support System:
(1) Sensitivity Analysis
(2) What-if Analysis
(3) Goal-seeking Analysis

- Executives: Executive Information Systems (EIS)
- Managers: Decision Support Systems (DSS)
- Analysts: Transaction Processing Systems (TPS)

The study of the impact that changes in one (or more) parts of the model have on other parts of the model

Checks the impact of a change in an assumption on the proposed solution

Finds the inputs necessary to achieve a goal such as a desired level of output

- Senior executives
- "what to do"

- VP's
- "how to do it"

- Operations manager
- "do it"

Executive Information System:
a specialized DSS that supports senior-level executives within the organization

Consolidation = aggregation of info. and features simple roll-ups to complex groupings of interrelated info.
Drill-down = enables users to get details, and details, of info.
Slice-and-dice = the ability to look at information from different perspectives