This paper presents on the one hand, the cereal activities in Tunisia and on the other hand, a systemic approach of analysis based on the objective oriented project planning (OOPP) method. The exploitation of the systemic approach enables us not only to analyze and to identify the information of the stock management in a grain silo but also to lead an efficient management of cereal transaction. In fact, the OOPP method constitutes a tool of a global systemic modelling enabling to analyze a complex situation by a hierarchically decomposition until reaching an elementary level of allowing an operational planning. This analysis enables us to identify the information needed for the deployment of a geographic information system (GIS) in Tunisia.
Key words: Cereal transaction, systemic analysis, objective oriented project planning method, geographic information system (GIS).
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