DOORS Next 7.1 Change set API. Not possible to get information.

Since DNG V7.1 it is possible to access information about content of a changeset through the API. This helps dramatically, to retrieve the modifications on artifacts for further processing, but generates less load as it was needed in V7.0.3 and earlier.

Our use case it to detect changed links between requirements (added and removed) as this kind of change cannot be detected via the modified date of an requirement.

See the DNGChangesetContentsApiOverview page as reference. The following behaviour was reproduced on V7.1 iFix003 (see Attachment: VersionInfo.png)

When information is retrieved from a change set through the API, the change details within the change set can be retrieved.

The Chain of API-Calls is:

Component (see ComponentList.png)

=> Streams (see ConfigurationList.png)

=> List of Change Sets (see DeliverdChnageSets.png)

=> Change Set (see SingleChangeSet.png)

=> Changes (see Changes.png)

=> Change Details (like links)

If the changes contain a link information, it is possible to retrieve the link details (source, target, type) through API (https://ms011.fyre.ibm.com/rm/links/LI_QB2wcDf4EfCHOp7lDoggzg ) as well, as long as the link exists between the artifacts (see API_LinkAddition.png).

As soon as the link gets removed (in a later change set), the information about the link details vanishes and even the same API-Call (https://ms011.fyre.ibm.com/rm/links/LI_QB2wcDf4EfCHOp7lDoggzg ) reports the resource as gone (API_LinkAddition_afterRemoval.png).

For retrieving information from a change set, between removed or added links, the API behaves different.

When querying the change set, that holds the removal information (through the same chain as before), the changes can be retrieved from the according CS, but details (by https://ms011.fyre.ibm.com/rm/links/LI_QB2wcDf4EfCHOp7lDoggzg) about the links in the changes are reported as gone, too (see API_LinkRemoval.png)

The fact, that the link details information is available or missing, depending on the artifacts link state (and not the historical state of the artifact) does not look correct. The information stored in a change set is supposed to be the stable over time.