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Functions of DGMS

Functions of DGMS. DGMS as a component of a DSS provide basic functions as follows;. Communication between the machine and the user, to assist the user to solve the unstructured problem.

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Functions of DGMS

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  1. Functions of DGMS DGMS as a component of a DSS provide basic functions as follows; • Communication between the machine and the user, to assist the user to solve the unstructured problem. • Control of input and outputs to meet the analysis of alternative to the problem. User is able to deal the data requirement and analyze the outputs. • Help the user to make a better use of the DSS to solve the problem in hand.

  2. Types of DGMS • DOS-based: • Early DSS technology, poor quality graphic. • Standalone. • DSSAT 3.5. • Windows-based: • Graphic-oriented, high quality graphic. • multiple languages, voice command. • standalone workstation. • OyThai, Posoup, Arawan, DSSAT 4.0, etc. • Web-based • Graphic-oriented. • Multiple languages. • Network of workers, shared computer & data resources. • Centralized DBMS, MBMS, DGMS—better data quality.

  3. Comparing types of DGMS The 3 type of DGMS may be compared using the AHP (Analytical Hierarchical Process). • Need to discuss with users. • Need to define a set of criteria to evaluate them.

  4. Questions • When do one needs a DSS? • Why do we need DSS to deal problems of agricultural systems? • What is the most appropriate approach to develop a DSS? • What kind of resources are needed to develop such DSS?

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