Prescriptions.

Health care provides many opportunities in which the sharing of data between independent sites is highly desirable. Several standards are required to produce the functional and semantic interoperability necessary to support the exchange of such data: a common reference information model, a common set of data elements, a common terminology, common data structures, and a common transport standard. This paper addresses one component of that set of standards: the ability to create a document that supports the exchange of structured data components. Unfortunately, two different standards development organizations have produced similar standards for that purpose based on different information models: Health Level 7 (HL7)'s Clinical Document Architecture (CDA) and The American Society for Testing and Materials (ASTM International) Continuity of Care Record (CCR). The coexistence of both standards might require mapping from one standard to the other, which could be accompanied by a loss of information and functionality. This paper examines and compares the two standards, emphasizes the strengths and weaknesses of each, and proposes a strategy of harmonization to enhance future progress. While some of the authors are members of HL7 and/or ASTM International, the authors stress that the viewpoints represented in this paper are those of the authors and do not represent the official viewpoints of either HL7 or of ASTM International.

Computer Communication Networks↗

PubMed2006

Providing longitudinal health care information with the new German Health Card--a pilot system to track patient pathways.

The paper describes an application system that employs the new German Health Card to provide a technical solution for tracking patient pathways. The aim is to improve the flow and availability of health care information. We used standard software components and technologies in order to facilitate interoperability with multiple system platforms and allow for customizing as the specification process for the German Health Card is not yet completed. Every health care provider contact is recorded on the card and associated medical documents are stored in a central database and can be retrieved via Web Services running on a central application server. The patient pathway can thus be chronologically tracked by the clinician and relevant longitudinal information is made accessible quickly. Our system for tracking patient pathways with the new German Health Card can be regarded as a first example of its great future potential.

Computer Communication Networks↗