Over the past decade, granular computing has rapidly emerged as a new paradigm for distributed information systems. This paper describes an approach to develop service-oriented systems with granular computing theories and OMG standard UML (Unified Modelling Language)[1,4]. The paper goes on to outline how to integrate granular computing structures, methodology and UML for modelling, organising and addressing systems through a case study of emergency assistance service system (EAS). Our approach to building software development solutions emphasizes the importance of using granular computing structures, methodology and domain modelling as a critical initial step in developing and producing software architectures and applications. It aims to p...