Evidence Change History

The evidence change history entity is used to store information regarding all maintenance operations performed on a piece of evidence. When evidence is captured for the first time, it is assigned a correction set ID. The system uses the correction set ID to track the changes made to the same evidence.

By using the correction set ID, the system can track evidence changes across multiple evidence records. When changes are made to an active evidence record, the system creates a new in edit evidence record. This protects the evidence information used in eligibility and entitlement determination. Both the active and its in edit evidence record share the same correction set ID; therefore, the evidence change history will include information about the active evidence and about changes made to it post-activation.

The following is the complete list of evidence changes that get recorded in the evidence change history:

An insert entry is added when evidence is created initially. This occurs when evidence is captured for the first time or when changes are made to active evidence.
An updated entry is added when evidence is modified while in edit.
A submitted for approval entry is added when evidence changes are awaiting approval from a supervisor.
An approved entry is added when the supervisor approves the submitted evidence.
A rejected entry is added when the supervisor rejects the submitted evidence.
A canceled entry is added when active evidence is canceled.
A superseded entry is added when active evidence is superseded by evidence changes. This occurs when changes are made to an active evidence record, and its in edit evidence record is activated, thus superseding the existing active evidence record.
An activated entry is added when in edit evidence is activated.
A pending update set entry is added when active evidence is updated.
A pending update discarded entry is added when pending updates on active evidence are discarded.
A pending removal set entry is added when active evidence is flagged for removal.
A pending removal discarded entry is added when the pending removal set on active evidence is discarded.

The following table describes each of the attributes in the evidence change history entity:

Table 1. Attributes in the Evidence Change History Entity
Attribute	Description
Evidence Change History ID	Unique identifier of the evidence change history record. This is the primary key used to identify the evidence change history record in the system.
Evidence Descriptor ID	Identifier of the related evidence descriptor record. The correction set ID is retrieved from this evidence descriptor record.
Change Type	Type of change that has occurred. This is a code table value. The change types include "input", "modified", "removed", "modification activated", "removal activated", etc.
Change Date Time	Date on which the evidence change is captured. This is the current date and time on the system when the change occurs. For example, when the evidence is first captured, the current date and time on the system is recorded.
Change User	User who performed the change on the evidence, e.g., the user who first captured the evidence on the system.