<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31401361</termId><termName>working models</termName><termType>PT</termType><termNote><![CDATA[ Models used during the design and refinement process, typically of relatively finished quality, but allowing for changes and experimentation in the design. ]]></termNote><termCreatedDate>2026-03-30 20:47:54</termCreatedDate><relation><relationType>UF</relationType><termId>31401362</termId><termName>models, working</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31401363</termId><termName>working model</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31360289</termId><termName>architectural models</termName><termType>PT</termType></relation></term>  </Zthes>