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Customers' requirements for agrifood products quality, safety and traceability have been rising year after year due to the fear of health problems, such as the mad cow disease. This paper presents Productive Chain Modeling as a method that helps identifying the information and automation needs of a production chain, and explores its possibilities in order to specify information systems that support the business of the many agents throughout the agrifood chain and fulfills customers' quality and traceability requirements. The application of Use Case Model is also presented for requirements and traceability identification and gathering throughout the productive chain. The Use Case technique applied to the productive chain helps to specify more quality and adherent information systems. As an example of those methods, some business and information processes modeling applied to the Continental Malacoculture Productive Chain are presented, using the IDEF0 technique. Worldwide aquaculture has increased in importance due to growth and successive increase in productivity, conferring this type of production an outstanding position in the international animal production sector. Amongst different modalities of aquaculture, in the last two decades, the production of escargots (malacoculture) has deserved attention from businessmen, government and researchers. In continental waters, Continental Malacoculture, especially ampullariculture could be seen as a way of producing low impact mollusks, using a system compatible with small farms production, contributing to a greater increase in the availability of high nutritional value food and also improving rural families' income.