rule
A rule is the basic building block of an application that specifies the behavior of part of an application. In an application there are many types of rules, each defining a different type of behavior. Rules define the display of a form, the fields that are used in your application, and the flows that define the process for work to get completed. The system can reuse rules throughout your application. For example, in an application used to order replacements parts, you can define a user interface to capture an address, and reuse the rule for UI to capture the mailing address and billing address for the order.
You define rules in an application to create a business solution for your organization and customers. Rules provide flexibility during the development process and help you design applications more efficiently so that they can be implemented again in future projects.
Figure: Section rule defining a customer survey
![Section rule defining a customer survey](../../Resources/Images/app-dev/appdev-customer-survey-section-rule-def.png)