3GPP 21.900 v20.0.0 — the document's own text
4.1 Overview
Taught in 4. The life of a 3GPP document, from blank page to published version (How standards actually get made, in depth), 3. From an idea to an approved version (How standards actually get made, overview).
Where appropriate, the three-stage methodology defined in ITUT Recommendation I.130 should be employed:
Stage 1 is an overall service description from the user's standpoint.
Stage 2 is an overall description of the organization of the network functions to map service requirements into network capabilities.
Stage 3 is the definition of switching and signalling capabilities needed to support services defined in stage 1.
In addition, it is often appropriate to perform a feasibility study prior to formal specification work. This is sometimes referred to as "stage 0".
Furthermore, it will often be appropriate to follow stage 3 with the production of test specifications – a stage 4.
Clauses inside this one
- 4.1.1 General 579 words
- 4.1.2 Role of the specification rapporteur 98 words