Multimethodology means to develop a method for combining or integrating different methodologies, in whole or parts, possibly from different paradigms, within a particular intervention. It concerns the whole area of using several methodologies or techniques of practical actions in problematic situations. Multimethodology entails an involvement of more aspects and a wider view is received. However, multimethodology entails some problems. Hence, more theories about how this ought to continue have to be worked out. In further development the designer should be in focus. Thus, a further development of multimethodology is desirable.