Abstract
In Japan, there was no widely-used general-purpose platform software, on which hydraulic and hydrological analysis model developed by others conduct water circulation simulations of river basins. This fact made it difficult to accumulate study results and reflect them in projects such as river improvement works. In this paper, firstly, we analyzed wide-range of domestic problems regarding hydraulic and hydrological analysis, and secondly surveyed development history and development specifications of existing general-purpose platforms, and then studied adaptivity of these general-purpose platforms for the problems. Based on the results, we analyzed development policies and functional requirements of a general-purpose platform to be developed in order to solve the problems. Finally, we designed program of the general-purpose platform to realize these functional requirements.
