Core Concepts of Accounting Information Systems, 13th Edition, by Simkin, Rose, and Norman
SM 5.2
1. A systems analyst uses it when evaluating a system to see if each department is receiving
others.
2. A system designer uses it when managers wish to improve or replace an existing system.
4. An auditor uses it to help define, follow, and evaluate an audit trail.
5. An internal data security expert uses it to identify weaknesses in the internal controls or
data processing of an accounting system.
5-5. Data flow diagrams use a square symbol to show the source or destination of data, a
circle to indicate a process, an open rectangle symbol to indicate a store of data, and arrows to
depict a data flow or data stream.
5-6. Developers create data flow diagrams in a hierarchy called the top-down approach to
systems development. In this approach, developers create these diagrams in levels, beginning
revisions are common, and little is considered “final” until the lowest diagram levels have been
specified and approved.
5-7. It is usually easier to follow logic with a chart or figure than with a written narrative.
the use of arrows to show connections or data flows.
5-8. Decision tables outline the set of conditions that a given processing task might
encounter and indicate the appropriate action to take for each condition. Decision tables can
because a computer program fails to account for a specific set of conditions. Finally, those
accountants who audit AISs rely heavily upon internal documentation, and decision tables can