| 摘要 |
PROBLEM TO BE SOLVED: To solve such problems that a large amount of expense and time are needed when many intermediate dealers join from an order for building construction until the execution of roof work, that there is a possibility that roof material is made different from that desired by a client, that the term of work delays and that the cost increases because intermediate dealers join, and that uncertainty remains for the client because many unclear matters exist unless the client is an expert. SOLUTION: In this roof material sales expansion system using the internet, a client and each trader such as a roof material maker are concerted by the internet, and information offering, cost estimation, opinion from the client, a work order, information exchange among traders or the like can be performed. Thus the client can have direct transactions with the roof material maker and reduce the execution cost of the work by reducing the number of intermediate traders, New information on a roof can be obtained immediately, cost estimation time can be shortened, desired merchandise can be used, and a claim is directly transmitted to the roof material maker, if any. CAD can be used for design for design drawing, the claim from the client can immediately be dealt with, the cost is stable since no intervention of the intermediate traders or unclear points exist, and the method of construction can be settled directly between the roof execution trader and the roof material maker. |
