Navigational Attribute Clarification

Hi all,
I have gone thru the forum for this concept.
Still i have little bit confusion on this.
Wat i understood is, Nav Attr behaves like a characterstic in Reporting, wat my doubt is instead of creating Nav Attr why don't we go for Creating that as a characterstic.
If we create a field as a navigational attribute from where it fetches the data during the reporting.
If i created a fiels as a characterstic from where it fetches the data during reporting.
Please
Regards,
Madhu

Hi,
A NAV is already a characteristic.
I believe that your question is more: why don't we store the characteristic directly in the InfoProvider instead of reporting on a NAV.
Suppose you sell articles (the basic char; CAMCORDER XYZ)
Suppose each article has an attribute "STATUS" = LIVE or DISCONTINUED.
Now you load your sales in a sales cube; you post the selling date, the article ID and it's status. When the article has been just listed (in JAN) to your shop it has the status LIVE, so you'll post something like
JAN__CAMCORDER XYZ__LIVE__$100
Now the status is set to discontinued by a buyer in FEB. Still you sell the remaining pieces:
FEB_CAMCORDER XYZ_DISC_$2000
Interesting to see that your cube can tell the turn over of this CAMCORDER depeding on its status over time.
Now the buyers might be interested to report only on LIVE articles.
Obviously filtering a query on STATUS = LIVE will still show $100 turn over in JAN, even if the article is now discontinued.
This is when the NAV enters into the into the game. If you enable the attribute STATUS as NAV of MATERIAL in your provider and filter you query ON MATERIAL__STATUS = LIVE, the CAMCORDER XYZ won't show up anymore.
just adding: during reporting, the X table of your basic char will give the SID of your NAV. Reporting with NAV add joins between tables, which can impact performance if not tuned properly.
hoping this clear you doubts...
Olivier.
Edited by: Olivier Cora on Apr 9, 2008 10:10 AM

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Hi,
data : begin of itab1 OCCURS 0,
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Edited by: Santhosh Nagaraj on Sep 16, 2009 2:01 PM
Edited by: Santhosh Nagaraj on Sep 16, 2009 2:05 PM

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Hello all,
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Hi,
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Message was edited by:
Murali

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Thanks for your reply. I was on leave for the past 2 days. I have checked as you suggested.
In 0MATERIAL, 0MATL_GROUP is the attribute and i have made Authorization Relvent for this Attribute.
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Can u pls help on this issue.
Diagnosis
The system determined the authorized characteristic values for the characteristic 0MATERIAL__0MATL_GROUP. It determined that you do not have the (analysis) authorization to view transaction data for any characteristic values or range.
System Response
If this situation occurs when a variable is being filled, the query cannot be executed.
Procedure
You must have authorization for at least one characteristic value for the characteristic 0MATERIAL__0MATL_GROUP.
Create the appropriate analysis authorizations for the user.
If you are only authorized for evaluations that aggregate using the characteristic 0MATERIAL__0MATL_GROUP (for ":" authorizations), use a query without this characteristic. If the characteristic is not used as a filter or in the drilldown, variables should not be used.
Procedure for System Administration
Notification Number EYE 018
Thanks,
Shahina A

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