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Database issues in object-oriented clinical information systems design.

S C Chu1, J B Thom

  • 1Centre of Medical Informatics, Faculty of Medicine, Monash University, Australia.

Studies in Health Technology and Informatics
|December 8, 1996
PubMed
Summary
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Implementing object-oriented clinical information systems using relational databases presented significant challenges. Relational database management systems struggled with complex objects and performance, impacting CIS development.

Area of Science:

  • Computer Science
  • Health Informatics
  • Database Systems

Background:

  • Clinical Information Systems (CIS) are crucial for modern healthcare.
  • Object-Oriented (OO) design offers benefits for complex software like CIS.
  • Relational Database Management Systems (RDBMS) are widely used but may not suit OO paradigms.

Purpose of the Study:

  • To reflect on the challenges of implementing an OO-designed CIS prototype using an RDBMS.
  • To explore the suitability of RDBMS versus Object-Oriented Database Management Systems (OODBMS) for CIS development.

Main Methods:

  • Developed a CIS prototype based on an OO design.
  • Attempted implementation of the OO data model within an RDBMS.
  • Analyzed difficulties encountered during the RDBMS implementation phase.

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Main Results:

  • Significant implementation difficulties were experienced with the RDBMS.
  • Limitations included lack of semantic power, poor complex object support, and inability to encapsulate methods.
  • Performance degradation occurred due to extensive join operations.

Conclusions:

  • RDBMS present limitations for effectively implementing OO data models in CIS.
  • OODBMS may offer a more suitable alternative for CIS development requiring OO paradigms.
  • Careful consideration of database technology is essential for successful CIS design and development.