# [ref_impl_eiffel] [1867] Improve new BMM_SCHEMA export-to-xml feature & correct serialising by marking various computed attributes as 'transient' (standard practice).

**Category:** [Reference Implementation: Eiffel (archive)](https://discourse.openehr.org/c/reference-implementation-eiffel-archive/161)
**Created:** 2012-10-12 08:44 UTC
**Views:** 3
**Replies:** 0
**URL:** https://discourse.openehr.org/t/ref-impl-eiffel-1867-improve-new-bmm-schema-export-to-xml-feature-correct-serialising-by-marking-various-computed-attributes-as-transient-standard-practice/14278

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## Post #1 by @svn1

Revision: 1867
Author:   thomas\.beale
Log Message:

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**Canonical:** https://discourse.openehr.org/t/ref-impl-eiffel-1867-improve-new-bmm-schema-export-to-xml-feature-correct-serialising-by-marking-various-computed-attributes-as-transient-standard-practice/14278
**Original content:** https://discourse.openehr.org/t/ref-impl-eiffel-1867-improve-new-bmm-schema-export-to-xml-feature-correct-serialising-by-marking-various-computed-attributes-as-transient-standard-practice/14278