Fundamentals of Runtime Processing of Event Rules

Runtime processing refers to how, at runtime, the system evaluates various events (such as initializing a form, clicking a button, and using Tab to move between fields) and their attached ER. ER is attached to events, which in turn are attached to controls or forms.

FDA provides several different form types, each of which includes predefined fields and features that are specific to the form type. For example, a find/browse form automatically includes a Find menu option or tool bar button with appropriate functions attached to it. When users enter search text in a filter or query-by-example (QBE) field, and then click the Find button on the tool bar, the runtime engine processes logic to fetch a record.

To avoid generating unnecessary ER, you should understand the different field types and associated capabilities that characterize each form type.