Maturity Level 1 Contributed: This is a document, piece of code, or change to an existing artifact that is submitted and is still in its "raw" submission state. It is community available but has its buyer beware tag.

Maturity Level 2 Assessed: This is a document, piece of code, or change to an existing artifact that is submitted and is still in its "raw" submission state but has been reviewed within the TM Forum.

Maturity Level 3 Team Approved: This is a document, piece of code, or change to an existing artifact which has been updated or worked and team reviewed. This may be a published addendum to an existing interface standard, a new version of a standard or a new version of a framework document. Document artefacts are subject to change based on inter-dependencies with other artifacts approved into the same release. Code artifacts are subject to change as the RI and TCK are built and the code package completed.

Maturity Level 4 TM Forum Approved: This is a document, piece of code, or change to an existing artifact which is TM Forum Approved and voted. Document artefacts have an established baseline which is TM Forum Approved. Code artifacts have been built as a complete technical package with compliance testing in place.

Maturity Level 5 TM Forum Packaged: This is a document, piece of code, or change to an existing artifact which is TM Forum Approved and has additional material that de-risks implementation