Ancillary data and services represent a generic class of auxiliary capabilities that rely on, need or complement EHR domain data in order to support health services delivery. Examples of potential ancillary services include: outbreak management, communicable disease reporting to support the realm of public health. Other valid examples could include: enterprise scheduling, wait list monitoring, cross-continuum workflow services and others.

With the inclusion of Public Health Surveillance (PHS) in Infoway ’s mandate, additional enterprise modeling was done to ensure the high level requirements for Public Health were addressed in the architectural blueprint. It became readily apparent that PHS and the Canadian population could benefit tremendously from participating in a shared EHR, however it also became evident that additional architectural constructs would be required to support use of the EHR infostructure for Outbreak Management and Reporting.

Because PHS will not be the only health discipline that will benefit from the provision of specialized and value add services as an inherent part of the EHR infostructure, these capabilities are presented somewhat generically in our architecture as Ancillary Data & Services, and Data Warehouse. This generic representation leaves room for additional value-add capabilities to be incorporated into the Blueprint framework.

Relations
Name	Type	Begins	Ends
	generalization	Outbreak Management	Ancillary Data and Services
	generalization	PHS Reporting	Ancillary Data and Services