The semantic data layer is part of LSEG’s Data Trust Programme – a strategic initiative designed to ensure the highest quality, integrity, and security of the more than 60k terabytes of data we have stored. This data is deployed by financial services firms across the globe into a growing range of use cases. It is being shared via the cloud, supported by our open, LLM-agnostic, and infrastructure-oriented partnership approach, which enables workflows through MCP servers and AI-ready APIs.
The semantic layer – built using open data standards – creates a single, centralised data model for the business language associated with the data, using elements such as:
- Business elements – Business names, descriptions and data types
- Business glossaries – A common vocabulary across the enterprise that defines concepts related to the data
- Business lineage – This connects the data together and creates transparency around how data is created and used.
By developing a semantic layer that lives centrally, within the overall data model, the business language is the same across LSEG’s data sets, eliminating potential inconsistencies in understanding and outputs – making it ideal for today’s innovative use cases.
As a strategic part of LSEG’s Data Trust Programme, the semantic data layer creates value for firms by enabling the democratization of data through the self-service discovery of datasets. It also significantly enriches the data for deployment in processes, business intelligence analytics, and AI – it is designed to support both defensive and offensive data strategies within financial services firms, enabling those firms to drive more value from our data.