期刊
AGRICULTURAL SYSTEMS
卷 87, 期 2, 页码 192-210出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.agsy.2004.12.003
关键词
data flow diagram; decision-making process; Management Information Systems; management; strategy; Precision Agriculture; systems analysis
This paper describes the development of a systems based model to characterise farmers' decision-making process in information-intensive practices, and its evaluation in the context of Precision Agriculture (PA). A participative methodology was developed in which farm managers decomposed their process of decision-making into brief decision statements along with associated information requirements. The methodology was first developed on a university research farm in Denmark and further revised during testing on a number of research and commercial farms in Indiana, USA. Twenty-one decision-analysis factors were identified to characterise a farm manager's decision-making process. Then, a general data flow diagram (DFD) was constructed that describes the information flows from data to decision. Illustrative examples of the model in the form of DFDs are presented for a strategic, a tactical and an operational decision. The model was validated for a range of decisions related to operations by three university farm managers and by five commercial farmers practicing PA for cereal, corn and soybean production in Denmark and in Indiana, USA. (c) 2005 Elsevier Ltd. All rights reserved.
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