The CareEvolution RTP is built on a Federated Service Oriented Architecture.


The key components of the architecture are:

• Adapter - Each participating institution runs the CareEvolution Adapter Service that provides the interface between the Record Locator Service, peer institutions, and the institution’s local clinical data sources.
  
  
• Record Locator Service (RLS) - The Record Locator Service (RLS) maintains an index of the locations of patient records for each person in the system. Clinical information is never sent to the RLS. Furthermore, the RLS only stores secured, blinded demographic information necessary for record linking. When a patient is registered with an institution, a query is submitted to the RLS. The RLS returns the location of any matching records. A location consists of a site identifier and a record identifier specific to the remote site.
  
  
• Security Token Service (STS) – The STS serves as an intermediary amongst participating members authenticating inter-member data exchange requests and insuring that no member is directly aware specifically of any other member. Adapters use the site identifier to query the STS to find the location and public key for the institution holding the desired record. Only then can peer institutions then use their local record identifier to locate the linked record.
  
  
• Peer to Peer Data Exchange – Finally, the located data interchange is managed purely between the adapters at the two institutions using encrypted web services.