Difference between revisions of "Three-layer graph-based model"
m (Revised Three-layer Graph-based Meta Model moved to Three-layer Graph-based Model: Will introduce the original work and then say that it was revised sometime, instead of introducing the revised work) |
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| − | The | + | ==3GLM== |
| + | The Three-layer Graph-based Model was introduced by Winter et.al. in 1995 at the University of Heidelberg [1]. Researchers observed that hospitals increasingly used non-specialized low-cost hardware and many different software systems. The resulting heterogeneity led to a strong demand for integrating all the different systems, and for this purpose the model was designed. | ||
| − | + | The purpose of the Three-layer Graph-based Model was to support the management hospital IT equipment and to assess its quality. The top layer was the procedural level to describe the functionality of a hospital information system. The middle layer was the logical level, dealing with the application systems and their communication. The lowest level is the physical tool level with the actual hardware and data transmission. | |
| − | + | ==3LGM²== | |
| + | In 2003, a revised version at the University of Leipzig was published: the Revised three-layer graph-based meta model or 3LGM2[2]. 3LGM2 now understands itself as an ontological basis for modeling a comprehensive information system of a hospital. | ||
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| + | The description of the lower two levels remained the same. The top level is now called the domain level consisting of hospital functions and entity types. Between the layers, a lot of relationships exist. The authors developed a graphical tool to create a 3LGM² compliant model for a specific site. This helps to detect shortcomings on the lower two levels. | ||
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| + | ==References== | ||
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| + | [1] Winter A, Haux R. [http://www.ncbi.nlm.nih.gov/pubmed/7476470 A three-level graph-based model for the management of hospital information systems]. Methods Inf Med 1995 Sep; 34(4):378-96. | ||
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| + | [2] Winter A, Brigl B, Wendt T. [http://www.ncbi.nlm.nih.gov/pubmed/14654889 Modeling Hospital Information Systems (Part 1): The Revised Three-layer Graph-based Meta Model 3LGM²]. Methods Inf Med 2003; 42(5):544-551. | ||
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| + | ==External links== | ||
| + | [http://www.3glm2.de www.3glm2.de] Project Homepage (in German) | ||
[[Category: EHR]] | [[Category: EHR]] | ||
[[Category: UT-SHIS SP09]] | [[Category: UT-SHIS SP09]] | ||
Revision as of 22:33, 20 September 2009
Contents
3GLM
The Three-layer Graph-based Model was introduced by Winter et.al. in 1995 at the University of Heidelberg [1]. Researchers observed that hospitals increasingly used non-specialized low-cost hardware and many different software systems. The resulting heterogeneity led to a strong demand for integrating all the different systems, and for this purpose the model was designed.
The purpose of the Three-layer Graph-based Model was to support the management hospital IT equipment and to assess its quality. The top layer was the procedural level to describe the functionality of a hospital information system. The middle layer was the logical level, dealing with the application systems and their communication. The lowest level is the physical tool level with the actual hardware and data transmission.
3LGM²
In 2003, a revised version at the University of Leipzig was published: the Revised three-layer graph-based meta model or 3LGM2[2]. 3LGM2 now understands itself as an ontological basis for modeling a comprehensive information system of a hospital.
The description of the lower two levels remained the same. The top level is now called the domain level consisting of hospital functions and entity types. Between the layers, a lot of relationships exist. The authors developed a graphical tool to create a 3LGM² compliant model for a specific site. This helps to detect shortcomings on the lower two levels.
References
[1] Winter A, Haux R. A three-level graph-based model for the management of hospital information systems. Methods Inf Med 1995 Sep; 34(4):378-96.
[2] Winter A, Brigl B, Wendt T. Modeling Hospital Information Systems (Part 1): The Revised Three-layer Graph-based Meta Model 3LGM². Methods Inf Med 2003; 42(5):544-551.
External links
www.3glm2.de Project Homepage (in German)
