There are two types of evidence changes that can impact verification: modification and removal of evidence. The effect that an evidence modification has on a verification requirement depends on whether or not the evidence is question is "Active" or "In Edit". The effect that evidence removal has on a verification requirement, however, does not depend on whether or not the evidence has been activated.
Note that the processing used for evidence changes to verifiable data items also applies to any dependent data items. For example, evidence might contain a "date of birth" verifiable data item that has a dependent data item called "place of birth". In this case, any changes to the "place of birth" dependent data item will trigger the same processing that is used for the "date of birth" verifiable data item.
The following sections describe the impact that different types of evidence changes can have on verification processing.