Welcome to the Discovery Data Service knowledge base

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These articles describe the various technologies underpinning the Endeavour and Discovery open source systems and related operational services which are currently live.

What is Endeavour - Discovery?

Endeavour - Discovery 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 that uses a common ontology of concepts, and then subsequently used for individual and population based decision support, great benefits to health can accrue.

The idea is not new. What is different about the approach to many alternatives, is that the specially developed software is open source and available for anyone to use. Specially developed software relates to any specialised software that is required to achieve the objective where that software is not available as part of generic cloud commodity services or data storage technologies.

The idea is also differentiated from the commonly used approach of linking end of month reporting data such as SUS or HES. Instead, Discovery seeks to use data as close as possible to its original entry form as entered by health professionals or the citizen themselves, and to use that data as close to real time as the publishers of that data can make available.


These articles provide information about the services, structure, and functionality that operate using the Information Models; one of the fundamental tenets of the Discovery Data Service. This is the starting point for those interested in health data and the information derived from it, and why Discovery may be different from other approaches:


  • London Discovery data service. Provides information about the London NHS service that are based on these technologies.
  • ASSIGN - UPRN. An address matching application and service that matches addresses held in source systems in various forms, to the addresses made available under license by the Ordnance Survey and Post office, including the assigning of a URPN. The application and service has been jointly developed by the Endeavour Health Charitable trust and Queen Mary's University of London and the Clinical effectiveness Group (CEG)
  • Information model manager - an application designed to provide a view of the common information model, and support the authoring of the content of the model.
  • Information model services - the technical services , such as APIs and apps that enable an model instance to be used or to implement an EHR based on the model or particular data model
  • Get Structured Record API - returns a complete patient record in a structured format following GP and Care Connect standards.


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

  • Sextant - A data set distribution service with an option to post the data directly into the recipients database.
  • Monitoring and alerting - provides an overview of the monitoring and alert systems in place.
  • 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.
  • Information model manager - an application designed to provide a view of the common information model, and support the authoring of the content of the model.