"Information Delivery Specifications (IDS) is a buildingSMART standard for specifying and checking simple information requirements from IFC models. It is designed as a free, lightweight, standardised approach to model checking."

You might also be interested in reading our blog post about IDS.

Example IDS specification

This example IDS (source) will test whether each IFCOPENINGELEMENT instance has a "Name" attribute set.

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ids:ids xmlns:ids="" xmlns:xs="" xmlns:xsi="" xsi:schemaLocation="  ids_09.xsd">   
        <ids:title>Example on use of attributes (for student research)</ids:title>
        <ids:copyright>buildingSMART International Ltd</ids:copyright>
        <ids:specification ifcVersion="IFC2X3" name="Aachen test" minOccurs="1">
                <ids:attribute minOccurs="1">