# CSDM V3 Framework Mapping: TM Forum V20

- Title: CSDM V3 Framework Mapping: TM Forum V20
- Video URL: https://www.youtube.com/watch?v=8yaWdmcBTQ4
- Playlist position: 67
- Frameworks discussed: CSDM, TM Forum, Open Digital Architecture
- Evidence basis: YouTube MCP playlist metadata, `yt-dlp` chapter metadata, and a local `faster-whisper` transcription recovered from the video audio after MCP transcript calls failed on 2026-03-26.

## Short summary
This session maps a telecom-specific architecture body of work into CSDM. The central move is to keep the TM Forum distinctions intact: business capabilities align to design, customer-facing product maps closer to business service and service offering, service maps to technical service, and resources map to configuration items.

## Key mapping concepts
- TM Forum as a telecom interoperability and enterprise-architecture reference body
- Open Digital Architecture used as the first comparison viewpoint
- Business capability correlation into the CSDM design domain
- Customer-facing product aligned with business service and service offering
- Service aligned with technical services, and resources aligned with CIs

## Notable terminology used
- TM Forum
- Open Digital Architecture
- Telecom interoperability
- Business capability
- Product
- Service
- Resource

## What still seems valid
The durable value here is the disciplined separation between customer-facing product, underpinning service, and underlying resources. That separation is directly useful for ontology work because it preserves the difference between what is consumed, what enables it, and what realizes it.

## What appears outdated or version-specific
The talk is tied to TM Forum v20 and CSDM v3, and the examples are strongly telecom-oriented. The exact labels and diagram structures should be treated as historical crosswalk material, but the layer separation is still worth reusing.

## Transcript
Local transcript recovered on 2026-03-26 by downloading the audio and transcribing it after the YouTube MCP transcript path failed.

Cleaned transcript excerpt:
- `0:15-1:20`: TM Forum is introduced as a large telecom standards alliance with enterprise-architecture and planning influence, while CSDM is framed as the ServiceNow model for managing digital products and services through their lifecycle.
- `2:05-2:50`: In the Open Digital Architecture view, the strongest overlap is business capabilities on the design side; much of the systems, IT, and network area corresponds to the broader operational territory that CSDM covers.
- `4:40-5:20`: The speaker draws the sharpest mappings here: TM Forum product aligns closest to business service and service offering, TM Forum service aligns to technical service, and TM Forum resources align to the CI layer that underpins those services.

Chapter landmarks recovered from the YouTube page:
- `0:50` CSDM vs TM Forum
- `2:04` Open Digital Architecture
- `2:58` TM Forum

## Relevance to current ontology work
High relevance for industry-model bridging. This session is useful when the ontology must absorb sector-specific reference architectures without flattening the distinctions between product, service, and resource semantics or losing the design-to-operations chain.
