This paper presents a methodology (is called MHS) for analyzing, and designing pervasive systems starting from designing pervasive environments, entities to pervasive software components. Our MHS methodology is general, in that it is not only specific to one particular domain, it is applicable to a wide range of pervasive environments, comprehensive, and in a way that it deals with pervasive environmental and contextual software related system aspects. One pervasive campus case study is introduced to illustrate the MHS methodology that supports modularity of context-aware system design and is applicable in different pervasive environments