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Biomedical subjects

P C Tang

Publications and source records attributed to P C Tang.

7 recordsLinked to original sources
PubMed1991

Heterogenous database integration in a physician workstation.

We discuss the integration of a variety of data and information sources in a Physician Workstation (PWS), focusing on the integration of data from DHCP, the Veteran Administration's Distributed Hospital Computer Program. We designed a logically centralized, object-oriented data-schema, used by end users and applications to explore the data accessible through an object-oriented database using a declarative query language. We emphasize the use of procedural abstraction to transparently integrate a variety of information sources into the data schema.

Computer Communication Networks↗
PubMed1991

An open systems architecture for development of a physician's workstation.

We are developing a physician's workstation consisting of highly integrated information management tools for use by physicians in patient care. We have designed and implemented an open systems, client/server architecture as a development platform which allows new applications to be easily added to the system. Applications cooperate by exchanging messages via a broadcast message server.

Ambulatory Care Information Systems↗
PubMed1991

Physicians' workstations: integrated information management for clinicians.

This paper describes a project to specify, design, develop, and evaluate a physician's workstation for use in patient care. We conducted an ethnographic study of physicians' information needs in an outpatient setting, from which we derived a set of functional specifications for a physician's workstation. We have implemented an experimental prototype using an open systems, client/server architecture, and are exploring research issues in heterogeneous database integration, object-oriented database technology, model-based reasoning, and semantic integration. We plan to evaluate our workstation prototype in a clinical setting to assess its impact on quality of care and health care costs.

Artificial Intelligence↗
PubMed1991

Knowledge-based support for a physician's workstation.

We describe knowledge-based support for a Physician's Workstation prototype. Our knowledge base uses a qualitative simulation model of patient physiology. We present the motivation behind our design, discuss the components of the knowledge base, and show how the knowledge base supports a physician's workstation in the patient management process. We describe a graphical knowledge base editor used by the domain expert for knowledge acquisition, and a graphical knowledge base presenter which monitors the qualitative simulation during patient event processing.

Artificial Intelligence↗
PubMed1991

Modelling work practices: input to the design of a physician's workstation.

To ensure tight coupling between users' work practices and the system's model of these practices, designers need methods to generate accurate descriptions of what users actually do. This paper illustrates how we model physicians' information needs and translate knowledge about these needs into design specifications.

Artificial Intelligence↗