Service improvement:Review service and management metrics to proactively identify opportunities for improving the service
（检查服务和管理度量，以主动地识别改进服务的机会)
Service operation:Excute service and support activities to keep the service running day-to-day and provide feedback data on service quality and attainment
(执行服务和支持活动，以保持服务的日常运行，并提供关于服务质量和获得的反馈数据)
Service transition:Build,test and deploy IT service,support infrastructure,capabilities,workflows and deployment mechanism
(建立、测试和部署IT服务，支持基础设施、能力、工作流程和部署机制)
Service design:Design service and support organization,management processes,technologies,interfaces to suppliers,data and reporting infrastructure
(设计服务和支持组织、管理过程、技术、与供应商的接口、数据和报告基础设施)
Service strategy:Determine service scope,IT services,service KPIs,service level requirements,sourcing and delivery strategy
(确定服务范围、IT服务、服务KPI、服务水平要求、采购和交付策略)