The User Documentation provides instructions, solutions for possible questions and tips for using the Open Test System tool chain. The Open Test System tool chain is a complete solution for using the OTX standard according to ISO 13209 (OTX) in automotive environment. It mainly consists of the following software tools.

	OTX Development Environment Comprehensive development environment for the creation, visualization, validation and maintenance of OTX projects.		OTX-Runtime API for DotNet Programming interface (API) for the easy, fast and reliable execution of OTX procedures in own DotNet applications or in embedded systems.
	Open Test Player Rapid Execution Environment for the quick and easy distribution and execution of OTX test sequences.		OTX-Runtime API for Java Programming interface (API) for the easy, fast and reliable execution of OTX procedures in own Java applications or in embedded systems.
	OTX according to ISO 13209 Introduction and reference of the OTX standard according to ISO 13209		OTX-Runtime API for C++ Programming interface (API) for the easy, fast and reliable execution of OTX procedures in own C++ applications or in embedded systems.
	Vehicle Diagnostics Overview about the fundamentals of the modern vehicle diagnostics.		OTX-DiagManager API Stand alone usable programming interface (API) in C++, DotNet and Java for the OTX based communication with different standardized diagnostic runtime systems.
	System Requirements, Supported Standards and Declarations Where the software can be used.		OTX-Runtime Converter API Programming interface (API) for the easy, fast and reliable validation and compilation of OTX procedures in own applications.
	Release notes Most important changes since a specific version.		Support, Maintenance and FAQ Support, Maintenance and Frequently ask questions.

The picture provides a graphical overview of the dependencies between the different tools inside the OTX tool chain. The tool chain consists of the OTX Development Environment, the runtime environment OTX Runtime API, which exists for C++, DotNet and Java, the Open Test Player, the OTX-Runtime Converter API and the OTX-DiagManager API, , which also exists for C++, DotNet and Java. The exchange format between the tools ist the standardized PTX File.