The move to cloud computing is creating headaches for SAPusers, who are struggling to get their heads around the complex licensing structure that a hybrid environment entails.
移入云计算给SAP用户制造了难题，他们都在为混合环境中限定的复杂许可而苦恼。
In the time of network computing, the difficult problems of software production are the insurable requirements, highly opened and complex of system environment.
在网络计算时代，软件生产所面临的难题是需求的不定性和系统环境的高度开放性、复杂性。
In pervasive computing environment, a single service is very difficult to meet the user's task needs, so its need to use service composition to complete the complex tasks.
普适计算环境中的单一服务很难满足用户的任务需求，需要通过服务的组合来完成用户的复杂任务。
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