DAC1 Study
Decision making Strategic, Managerial, Operational
At the operational level, employees develop, control, and maintain core business activities required to run the day-to-day operations. Operational decisions are considered structured decisions,
At the managerial level, employees are continuously evaluating company operations to hone the firm's abilities to identify, adapt to, and leverage change. Semistructured
At the strategic level, managers develop overall business strategies, goals, and objectives as part of the company's strategic plan., Unstructured
Operational Support Systems
USING MIS
Online transaction processing (OLTP) is the capture of transaction and event information using technology to (1) process the information according to defined business rules, (2) store the information, and (3) update existing information to reflect the new information.
A transaction processing system (TPS) is the basic business system that serves the operational level (analysts) and assists in making structured decisions.
Managerial Support Systems
Online analytical processing (OLAP) is the manipulation of information to create business intelligence in support of strategic decision making
What-if analysis checks the impact of a change in a variable or assumption on the model.
Sensitivity analysis, a special case of what-if analysis, is the study of the impact on other variables when one variable is changed repeatedly.
Goal-seeking analysis finds the inputs necessary to achieve a goal such as a desired level of output. It is the reverse of what-if and sensitivity analysis.
Optimization analysis, an extension of goal-seeking analysis, finds the optimum value for a target variable by repeatedly changing other variables, subject to specified constraints.
Strategic Support Systems
An executive information system (EIS) is a specialized DSS that supports senior-level executives and unstructured, long-term, nonroutine decisions requiring judgment, evaluation, and insight. These
At the operational level, employees develop, control, and maintain core business activities required to run the day-to-day operations. Operational decisions are considered structured decisions,
At the managerial level, employees are continuously evaluating company operations to hone the firm's abilities to identify, adapt to, and leverage change. Semistructured
At the strategic level, managers develop overall business strategies, goals, and objectives as part of the company's strategic plan., Unstructured
Operational Support Systems
USING MIS
Online transaction processing (OLTP) is the capture of transaction and event information using technology to (1) process the information according to defined business rules, (2) store the information, and (3) update existing information to reflect the new information.
A transaction processing system (TPS) is the basic business system that serves the operational level (analysts) and assists in making structured decisions.
Managerial Support Systems
Online analytical processing (OLAP) is the manipulation of information to create business intelligence in support of strategic decision making
What-if analysis checks the impact of a change in a variable or assumption on the model.
Sensitivity analysis, a special case of what-if analysis, is the study of the impact on other variables when one variable is changed repeatedly.
Goal-seeking analysis finds the inputs necessary to achieve a goal such as a desired level of output. It is the reverse of what-if and sensitivity analysis.
Optimization analysis, an extension of goal-seeking analysis, finds the optimum value for a target variable by repeatedly changing other variables, subject to specified constraints.
Strategic Support Systems
An executive information system (EIS) is a specialized DSS that supports senior-level executives and unstructured, long-term, nonroutine decisions requiring judgment, evaluation, and insight. These