Ch. 2: Overview of Business Processes
2.2 With respect to the data processing cycle, explain the phrase “garbage in, garbage
out.” How can you prevent this from happening?
When garbage, defined as errors, is allowed into a system that error is processed and the
resultant data stored. The stored data at some point will become output. Thus, the phrase
garbage in, garbage out. Data errors are even more problematic in ERP systems because the
error can affect many more applications than an error in a non-integrated database.
Companies go to great lengths to make sure that errors are not entered into a system. To
prevent data input errors:
Data captured on source documents and keyed into the system are edited by the
Companies use turnaround documents to avoid the keying process.
Companies use source data automation devices to capture data electronically to avoid
Well-designed documents and screens improve accuracy and completeness by
Data input screens are preformatted to list all the data the user needs to enter.
2-2
©2018 Pearson Education, Inc.