I suggest that the interface of HIS Desktop can show the characteristics of Hydrology information system. Moreover, the main page or form of HIS Desktop can clearly reflect the workflow of relevant HIS tools, give new user a explicit direction about how to use this HIS Desktop.
As for the functionalities of HIS desktop, it can allow users to discover,understand, view, access, and query information of their choice from the local level to the national level. In my opinion, the key component of HIS desktop is data query and discovery.