Mattias,

For the benefit of reviewing other approaches, you might want to look at
the solution produced by ww.dstc.com, they have a product called HotMeta.
Developing a Metadata solution that supports current and future metadata
schema's can become overly, and unnecessarily complex, and the HotMeta
approach is very elegant and simple.

Regards,

Leon O'Brien




                                                                                       
                                             
                    "Mattias                                                           
                                             
                    Konradsson"             To:     <[EMAIL PROTECTED]>            
                                             
                    <mattias@konradss       cc:                                        
                                             
                    on.net>                 Subject:     [cms-list] managing metadata  
                                             
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                    cms-list-admin@cm                                                  
                                             
                    s-list.org                                                         
                                             
                                                                                       
                                             
                                                                                       
                                             
                    06/02/2003 07:46                                                   
                                             
                    AM                                                                 
                                             
                                                                                       
                                             
                                                                                       
                                             




I'm working on a cms system and time has come to do the metadata stuff.  I
don't have much experience in this aspect of the cms so I'd like to hear
your thoughts
about what essential features one should include, anyone has any good
experience to share on the subject?

I've also figured out two ways I could implement metadata, either to simply
store xmldata for each document which then can be aggregated into one big
document which you can run powerful xpath expressions against. The other
method is using a dynamical database implemented in sql where you can
define
different attributes for each document. The problem with the first approach
is that the aggregated xmldocuments are potentially huge and loading it
into
memory for searching would probably mean a performance hit. Method nr 2
should work pretty well , should even be able to convert the sql tables to
xml if you want to do xpath or to direct sql searches, only downside I can
see is that the metadata probably can't be as hierachial complex keeping
the
xml shallow. On the other hand I'm not sure metadata needs to be that
structurally complex, any thoughts?

best regards
---
Mattias Konradsson


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