This paper presents a conceptual perspective on scheduling systems' design pattern for several classes of multi-component applications. The authors consider this scheduling problem in a wide-area network of heterogeneous computing environment. The heterogeneity in both the user application and distributed resource environments make this a challenging problem. In addition, the authors propose a component-based reference architectural model, which describes the design of a general purpose scheduling system targeted at the scheduling of multi-component applications. The design goal is to identify and map out the necessary ingredients required to effectively perform the scheduling of multi-component applications.