Rapid progress in networking technology is now making global computing systems feasible. Although there have been proposals of global computing systems, it is still a research issue as to how to achieve efficient usage of computing resources in global computing. In particular, we need to devise appropriate scheduling strategies/algorithms of computing resources over wide-area networks, which are often dynamic and unstable in nature. This paper presents our preliminary scheduling framework for unifying application and job scheduling in global computing. The proposed framework establishes a layer of scheduling and resource allocation subframeworks. We show our software framework Ninf metaserver which provides low-level scheduler and resource monitor. We also evaluate some scheduling strategies by actual environment and our performance evaluation model.