Working with Visible Analyst
An additional VA workbook, available to package with the text.While the data flow diagram is used to show how data in a system are processed, that is, what activities change the data, the ... The entity relationship diagram is necessary to provide a means of linking one table to another, such as a Host Family to the School. ... Sometimes an external entity is also a data entity, such as a Person, but other times an external entity is not a data entity, such as Management.
| Title | : | Working with Visible Analyst |
| Author | : | Allen Schmidt |
| Publisher | : | Prentice Hall - 2002-11 |
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