This schema is specified in IEEE Std 1671.2-2008, "IEEE Trial-Use Standard for Automatic Test Markup Language (ATML) for Exchanging Automatic Test Equipment and Test Information via XML:Exchanging Instrument Descriptions." This schema is a World Wide Web Consortium (W3C) Extensible Markup Language (XML) binding of the ATML Instrument Instance component defined in IEEE Std 1671.2-2008,"IEEE Trial-Use Standard for Automatic Test Markup Language (ATML) for Exchanging Automatic Test Equipment and Test Information via XML:Exchanging Instrument Descriptions." The purpose of this schema is to allow the creation of IEEE Std 1671.2-2008 Instrument Instance instance documents. This schema uses the W3C XML Schema definition language as the encoding. This allows for interoperability and the exchange of ATML component instances between various systems. This schema shall not be modified but may be included in derivative works. Copyright (c) 2009 Institute of Electrical and Electronics Engineers, Inc. USE AT YOUR OWN RISK The InstrumentInstance element shall identify a specific instrument. The InstrumentInstance element shall identify a specific instrument. The InstrumentInstance/Paths child element shall identify the characteristics of the signal paths through the specific Instrument and interface hardware The InstrumentInstance/Capabilities child element shall identify the capabilities of a specific instrument. The InstrumentInstance/Extension child element shall provide a specific extension point for use cases that require elements not provided in the basic structure. A string that permits the name of the instance document to be indicated. A string that permits the version of the instance document to be indicated.