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Understanding DGMS Functions in Decision Support Systems (DSS)

DGMS (Decision-Guiding Management System) plays a crucial role as a component of DSS, ensuring effective communication between users and machines to address unstructured problems. It manages input and output control, enabling users to analyze data efficiently. DGMS types include DOS-based, Windows-based, and Web-based systems, each offering varying features like graphics quality and language support. The system's evaluation can be approached through the Analytical Hierarchical Process (AHP), highlighting the need for user input and defined criteria. This article explores when and why DSS is essential, particularly in agricultural systems.

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Understanding DGMS Functions in Decision Support Systems (DSS)

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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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