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question asked: Jul 01, 11:57 p.m.
question was seen: 375 times
last updated: Jul 05, 8:09 a.m.

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How does the addition of GC and local baselines impact QM and RM?

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Venkatesh Bhat (29●2●3●4) | asked Jul 01, 11:57 p.m.
I have an inquiry regarding baselines. Let me first clarify my understanding (I will use ETM as an example, but I believe it is the same with RM):

- Artifacts (TC, TCER, TCR, etc.) are stored externally (outside of configuration).
- Local Configuration stores a version of artifacts.
- GC stream does not store data, only references local stream/baseline.

The question at hand is how data is stored:
What is the impact of creating numerous local baselines? Does a baseline contain a duplication of all data?
Or does an artifact contain all its versions and the baseline only contains references to the related versions (with configuration acting as a filter)?

We are attempting to assess the frequency at which we can create baselines without affecting server storage.

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Richard Watts (36●2) | answered Jul 03, 2:21 p.m.
JAZZ DEVELOPER

A baseline describes artifacts at a specific point in time. Implementations vary, but generally, it is the specific versions (a list) of artifacts that are used at a point in time.

A Local Global Configuration is a grouping of one or more baselines with the artifacts being from the same application. To see Global Configurations across tools, you would need to examine the GCM Global Configuration.

A local GC is used to resolve components to a GC context. It also includes GC contribution data. We keep local versions in the applications to improve overall performance. A GC is a collection of versioned artifacts from one or more tools. A local GC will show you those streams and contained artifacts that "live" in that tool.  <o:p> </o:p>

<o:p>   </o:p>

GC Stream <o:p> </o:p>

ETM Stream <o:p> </o:p>

Test Case 1 Version <o:p> </o:p>

Test Case 2 Version <o:p> </o:p>

<o:p>   </o:p>

The local configuration shows you those elements in that tool, while the global version gives you a view across multiple products.  <o:p> </o:p>

Ralph Schoon selected this answer as the correct answer
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Ralph Schoon commented Jul 03, 3:48 p.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER

I assume point in time means the item id and item state at that point in time, Rich.

Richard Watts commented Jul 05, 8:09 a.m.
JAZZ DEVELOPER

Yes.  Correct. A baseline is a list of artifact versions at a specific point in time (that are contained within that baseline).

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Ralph Schoon (63.3k●3●36●46) | answered Jul 02, 2:33 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER

The ELM tools, when using them configuration management enabled, do not duplicate data. The configurations select the version.

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Venkatesh Bhat commented Jul 02, 2:55 a.m.

thaks for the quick answer, Ralph! Can you elaborate little more, please?

Ralph Schoon commented Jul 02, 4:01 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER

My understanding is:

Items have an item ID. Each item has a state ID. When Items are changed, a new state id is used. An item can have a predecessor item, this makes up the history.

Configurations like baselines select the item and state for the elements they contain as far as I know. So they do not store a copy of the object but a reference to the version of the object.

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