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Topic Title: Duplicates after recursive traces
Topic Summary: In environments where children have multiple parents, recursive traces results in duplicates
Created On: 31-Dec-2004 22:42
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Answer This question was answered by Paul Ransley, on Friday, March 11, 2005 5:06 PM

Answer:
If you want to customise the column dxl created by the Wizard try the following mods; Good luck.
 31-Dec-2004 22:42
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Debra Shannon

Posts: 2
Joined: 9-Dec-2003

After performing a recursive analysis with a depth of 4 or more, I'm getting duplicate requirements in the 4th+ layers. This is because there are multiple paths to get to the requirements in the 4th+ layer. For example, A -> B -> C -> F and A -> B -> D -> F and A -> E -> C -> F. This should be a common dilemma for applications where children requirements have multiple parents.

Does anyone know how to avoid or automatically delete the duplicates? This is a serious problem for us because we have 8 levels of requirements, and each requirement can have multiple parents.
It's okay if the solution involves post-processing in Word or Excel, because I'm exporting the trace matrices anyway.

Thank you!

Debbie
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 1-Jan-2005 21:45
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ron lewis

Posts: 650
Joined: 20-Sep-2004

There are several approaches -- however the easiest to explain is:

Build a skip list of each one of your links -- this will filter duplicates -- then display the filtered list.

For more info contact ron_lewis@hotmail.com
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 3-Jan-2005 04:47
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Paul Ransley

Posts: 10
Joined: 20-Sep-2004

We often get this, and use either a solution similar to Ron's responses, or capture the traces to a text attribute (for various reasons), then run a script to remove the duplicates. As an example see the attached script which assumes the traceability is only showing the Object Identifier or Absolute Number but is easily modified to include other attributes as needed. The script might be useful to experiment with after creating a couple of objects with duplicated values in the attribute. We have also used a variant to modify the script created by the Analyse Wizard, though as I said our preference is to use the traces stored in a text attribute.

-------------------------
Paul Ransley<BR><BR>Beaver Computer Consultants Limited

Edited: 3-Jan-2005 at 09:50 by Paul Ransley
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 3-Jan-2005 10:23
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Paul Ransley

Posts: 10
Joined: 20-Sep-2004

Answer Answer
If you want to customise the column dxl created by the Wizard try the following mods; Good luck.

-------------------------
Paul Ransley<BR><BR>Beaver Computer Consultants Limited

Edited: 3-Jan-2005 at 10:31 by Paul Ransley
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 19-Jul-2006 19:19
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Al Lione

Posts: 59
Joined: 13-Jul-2004

Would you be willing to provide code to do recursive analysis? I could use some code that starts with a current module and traces links for several levels. Thanks!
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