Welcome to the Endeavour Health knowledge base

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These articles describe the various technologies underpinning the Endeavour open source technologies which have been adopted and used by a large scale NHS London Data linkage and normalisation Service covering a population of 7 million registered citizens.

Health Record Data Service and Health Information model

The health record data service is based on the hypothesis that; If health related data is brought together at the level of the individual in close to real time, and stored together at the level of a medium size residential population, and made available via a common data model as part of a common ontology, and then subsequently used for individual and population based decision support, great benefits to health can accrue.

The service uses technologies that consist of a set of components that link near real time data from millions of records from thousands of provider organisations, with scores of different formats and code systems and converts them to a single common information model, made up of a super ontology, a data model, ,maps between source data and the common model, sets of concepts sets and value sets for query, and query libraries.

All components are open source and are themselves built from open source and open standards such as the semantic web languages, JSON-LD and RESTful APIs. The ontology uses the NHS core ontologies of Snomed-CT and the NHS Data Dictionary, supplemented to accommodate the many local codes and text expressions.

Information model Components

Applications and APIs

These articles provide information about the applications that have been by the technologies

  • Data Sharing manager- DSM provides a visual representation of data that is being shared and processed and by which organisations, regions, and/or services.
  • ASSIGN- UPRN address matching application - a web based application that matches single or batches of hand entered address to authoritative addresses and assigns a unique property reference number.
  • Alert Generator - APIs that generates a patient alert based on a query, sends a notification to recipients and provides recipients with access to a web application to view the content of the record according to the data set
  • Data Distribution services that distribute daily weekly or adhoc small data sets from the linked core data stores with examples from 2020