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Complete system control: an object-oriented approach.

C J Young1

  • 1Coulter Electronics Inc., Hialeah, FL 33014-3613.

Clinical and Laboratory Haematology
|January 1, 1990
PubMed
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This study introduces object-oriented flow diagramming for automated haematology instruments. This method models reagent and sample flow to enhance complete system control and analysis.

Area of Science:

  • Clinical laboratory science
  • Biomedical engineering
  • Software engineering applied to medical devices

Background:

  • Automated multiparameter haematology instruments require robust control systems for accurate sample analysis.
  • Ensuring complete system control is crucial for reliable diagnostic results in clinical laboratories.
  • Existing methods for analysing control requirements may not fully capture the complexity of modern haematology analysers.

Purpose of the Study:

  • To present principles for achieving complete system control in automated multiparameter haematology instruments.
  • To introduce and demonstrate a novel method, object-oriented flow diagramming, for analysing control requirements.
  • To model the reagent and sample flow within a haematology instrument to identify control needs.

Main Methods:

Related Experiment Videos

  • Object-oriented flow diagramming, combining object-oriented programming concepts with graphical flow diagrams.
  • Development of a model representing reagent and sample flow during automated haematology analysis.
  • Analysis of control materials and mechanisms at component, subsystem, and integrated system levels.

Main Results:

  • The object-oriented flow diagramming method provides a comprehensive model for analysing control requirements.
  • The model effectively visualizes reagent and sample pathways, facilitating the identification of critical control points.
  • Application of the method to the cyanmethaemoglobin method and Coulter VCS leukocyte differential counter demonstrated its utility.

Conclusions:

  • Object-oriented flow diagramming is an effective approach for designing and analysing control systems for automated haematology instruments.
  • This method aids in ensuring the complete system control necessary for accurate and reliable haematology diagnostics.
  • The presented methodology offers a structured way to manage the complexity of multiparameter haematology analysers.