User interface- as mentioned, the user of DSS enters some information to the system with respect to his experiences and information of the domain repository.
This information shows the extent to what each quality attribute is of importance in the project at hand and provides the priority of the quality attributes which must be satisfied.
The user interface is responsible for receiving this information from user; the received information is entered to the decision maker.
Moreover, representing necessary information for the user (information received from decision maker or retrieved from domain repository) is the responsibility of user interface.
The suggested architecture style(s) is/are represented by user interface as a suggestion to the architect by their priority.
The architect could select the suitable architecture style(s) among suggested one(s) with respect to his knowledge about the problem.