The OpenTravel Implementation Guide provides invaluable information to both analysts and implementers of the OpenTravel specification on how to more easily understand and build software systems that are interoperable with other travel systems using the OpenTravel schema. Non-members, click here for the executive summary . To download the document, please visit the OpenTravel Wiki (you must have member rights to access the document).
All previous versions of the OpenTravel specification are available below. Please note that changes are made only to the most recent version.