Requirement engineering is thought to be one of the crucial and meanwhile troublesome assignments among analysis and design process. The methodology of requirement engineering habitually starts beginning with no outside help and depends upon all that much the analysts' mastery. In this way, there is a need of solution environment to specialists for recurring problems in the domain. In this regard, requirements patterns help reusing the information of catching obliged functionalities and properties of a framework. To enhance context aware system, we introduce new regularly utilized requirements patterns with context properties. The Health Level 7 (HL7) standards and driving edge information technology will be the starting ventures for moving towards an interoperable social healthcare environment. Our aim is to create a new pattern template for context aware system, namely, CaRePa (pronounced as Care-Pa) and using this template, we have identified seven patterns which are used in CaRePa methodology. The strategy that CaRePa technique incorporates constant evaluation of identified requirement patterns. This methodology evaluated with patient monitoring system as a case study. Finally, the assessment of proposed ideas by the method for directing survey and the results of the different stakeholders are presented.