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Subject: Structure of the COEL JSON documents



As happens when you finally start working on something you find the bugs in the idea. Here is a typical entry from the class file:


{"class_id": 1, "code": 4352, "cluster_id": 1, "name": "Body"}


The cluster_id points to the cluster_id for the parent of this class and the class_id is used similarly in the sub-class file.


The I have problem is with the code. It is currently created as a cluster code time 4096 plus the class ode * 256. Basically allowing only 15 classes, sub-classes, and element under each parent. The BAP currently allows for 99 of each. Furthermore the code fully encodes the hierarchy, so in some sense the _ids are redundant. I would like to have a go at a better extraction of this data from my database. It shouldn't take long and I do it tonight. But it means a slight delay to this work.


Is there any implementation work built on the files currently posted in OASIS? I know the 'C' runs of the direct extract from the database, so it is not affected.



Take care:

    Dr. David Snelling < David . Snelling . UK . Fujitsu . com >

    Senior Research Fellow

    Research Transformation and Innovation

    Fujitsu Laboratories of Europe Ltd.

    +44-7590-293439 (Mobile)



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