Floriculture has high commercial value and it is interested by many people. Floryculture bussiness grows fastly and it is very needed by people especially in big cities. Developing integrated masterplan system of web based floriculture is one of alternatives using computer technology to simplify operation of successfully decorated plant.  To develop integrated master plan system of web based floriculture, it is firstly done necessity analysis process of that system by identifying of necessity through usecase, event, and things. Implementation of  integrated master plan system of web based floriculture can increase service quality and simplify transaction of selling floriculture.Key words: Web, Use-case, Event and Things
                        
                        
                        
                        
                            
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