Final answer:
Constraint refers to a rule or limitation within a system, while criterion is a measurable standard used for evaluation. When rules are constraints that dictate the display of categories based on certain criteria in software and data management.
Step-by-step explanation:
In the context of data management and software design, the terms constraint and criterion have specific meanings. A constraint is a rule or limitation that defines boundaries within which a system must operate. For example, a data source being configured to a certain category is a type of constraint. It must adhere strictly to the rule that only that data source can be linked with that specific category.
On the other hand, a criterion refers to a measurable standard used to evaluate the performance or qualities of a system.
When a category has a When rule to determine its display criteria, it suggests that the display of this category is conditional based upon specific criteria being met.
This When rule serves as both a constraint and a criterion. It is a constraint because it limits the display of the category to certain conditions, and it serves as a criterion because it provides a standard by which the software decides whether the category meets the necessary conditions for display.