Service computing in global information grid
全球信息栅格与服务计算

GIG is different from common grid for emphasizing how to implement and join seamlessly information producing,processing and publishing in large-scale military applications.In GIG,theory and technology of Service-Oriented Computing(SOC) hold a important position.SOC is a new computing pattern that varies from Object-Oriented Computing(OOC) and Component-Oriented Computing(COC).SOC emphasizes the dynamic capability,agility and interoperability.Based on the discussion of the concept of GIG and its elements,the notion and principle of SOC were studied.The difference between SOC and OOC was also investigated in this paper.How to apply SOC to GIG and how to combine SOC with traditional technologies were also explored.Finally,some issues about using SOC in GIG were proposed.