9.5      Manage Validations

A validation is a type of edit check that assesses whether data is considered valid based on conditions specified when it is programmed.

Types of Validations:

·        Flag an object’s value as invalid (The value could be inconsistent, not entered, out of range etc.)

·        A valid edit check considers the values of one or more items, and may also consider the visit, form, or group instance number as part of the check.

·        The check must return a Boolean (true or false) value as its last statement

·        If false is returned, the red exclamation icon displays on the item which is the target item of the edit check

Refer to the following sections when managing validations:

·        VTS (Validation Task Service)

·        Scenarios Covered by the VTS

·        Manage Validation Actions

·        Manage Validation Edit Checks

·        Manage Client Script Functions