CS 493 Project Definition The project assignment is a simplified version of the Integrating Healthcare Enterprise (IHE) Cross-Enterprise Document Sharing (XDS) Profile Web site: A number of simplifying assumption is made and a few corners cut to make this a viable class project Goal of the project is to be able to do the following: –Ability to build a distributed solution using web services infrastructure –Ability to build RELIABLE distributed systems –Ability to build distributed solutions that utilizes both synchronous and asynchronous messages

IHE Cross-Enterprise Document Sharing (XDS) Profile Ability for a source of clinical documents to register and store documents in a repository Ability for a consumer of clinical documents to query registry and retrieve documents from a repository Website: Volume 1: (ITI TF-1): Integration Profiles Volume 2: (ITI TF-2): Transactions

Number of simplifying and not so simple assumptions One patient identifier domain Few (two to three) document sources One registry – but in this project will call for replicated registry to increase reliability and availability Only look at some of the key required transactions and completely ignore optional transactions defined in this integration profile

Actors Document SourceProducer and Publisher of documents Document ConsumerQueries registries and retrieves documents from repositories Document RegistryMaintains metadata about each registered document Document RepositoryMaintains persistent storage of documents and assigns URI for document retrieval Patient Identity SourceProvider of unique patient ids (such as a registration system)

Actors and Transactions Document ConsumerQuery Registry Retrieve Document Document SourceProvide and register document set Document RepositoryProvide and register document set Register document set Retrieve Document Document RegistryRegister Document Set Query Registry Patient Identity Feed Patient Identity SourcePatient Identity Feed

IHE XDS Scheme Patient Identity Source Document Registry Document Repository Document Source Document Consumer Patient Identity Feed [ITI-8] Register Document Set [ITI-14] Provide Document Set [ITI-15] Retrieve Document [ITI-17] Query Registry [ITI-16] Ignore for the purpose of the project

Project Implementation Configuration Document Source + Document Repository Document Registry Document Consumer Document Source + Document Repository

Relevant Sections Volume I 10 Cross-Enterprise Document Sharing (XDS), pg provides background information Volume II 3.14 Register Document Set pg –{Ignore the following sections: , , , , , } General structure and header, pg Query Registry pg Retrieve Document pg

General Requirements Documents that needs to be submitted: can be one of: –CDA documents {I will provide samples} –PDF or Word documents –Must simulate sample clinical data Document Metadata that needs to be captured –Patient Id –Service start and stop time –Document Creation time –Document Class Code and Display Name –Healthcare Facility Type Code and Display Name –Availability Status –Document Unique Id Registry Implementation –Should use replication to improve reliability

Project Teams You can do it alone You can do it in a team of two or three Project scope will be scaled up and down based on whether it is a team or not.

Project Timeline March 9 th –Sequence Diagrams, Requirements that are going to be addressed & Preliminary Design – 6 Pts March 23 rd –Design Documents – Class diagrams – 6 Pts April 6 th –First demonstration – Submission of documents to registry – 9 Pts April 27 th –Project Final demonstration – Full scenario – 9 Pts