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Accounting Information System Homework

Autor:   •  April 7, 2011  •  Essay  •  707 Words (3 Pages)  •  2,434 Views

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AIS book Chapter 9 Page 329 RQ 3, 4, 6, 8

RQ 9-3 How could the control matrix be used to recommend changes in the system to improve control of that system?

The control matrix is a tool designed to assist in evaluating the potential effectiveness of controls in a business process by matching control goals with relevant control plans.

In the process of preparing a control matrix, one must specify control goals and recommend control plans. Knowing these controls will help identify present and missing controls.

RQ 9-4 How would the control matrix be useful in evaluating control effectiveness, control efficiency, and control redundancy? Include in your answer a definition of these three terms.

The control matrix is a tool designed to assist in evaluating the potential effectiveness of controls in a business process by matching control goals with relevant control plans.

In the process of preparing a control matrix, one must identify operations process control goals that specifically addresses: control effectiveness, which asks if all the control goals are achieved, control efficiency, which asks if individual control plans address multiple goals, and control redundancy, which asks if there are too many goals directed at the same goal. By identifying operations process control goals, one evaluates and identifies missing control or controls that are repeated and can be cut out of the process. The control matrix is instrumental in evaluating control effectiveness, control efficiency, and control redundancy.

RQ 9-6 Describe the four common programmed edit checks.

a. Limit checks test whether the contents (e.g. values) of the data entered fall within predetermined limits. The limits may describe a standard range or maximum values. A variation of this control is a reasonableness check that compares entered data with a calculated amount to discover inputs that may be incorrect.

b. Document/record hash totals reflect a summarization of any numeric data field within the input document or record, such as item numbers or quantities on a customer order. The totaling of these numbers typically serves no purpose other than

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