ISO/IEC 11889 defines the Trusted Platform Module (TPM), a device that enables trust in computing platforms in general. ISO/IEC 11889 is broken into parts to make the role of each document clear. Any version of the standard requires all parts to be a complete standard.

A TPM designer MUST be aware that for a complete definition of all requirements necessary to build a TPM, the designer MUST use the appropriate platform specific specification for all TPM requirements.

Part 1 provides an overview of the concepts behind the TPM and trusted platforms.