1. 在工作流初始化阶段，用户首先在云计算平台上签署云服务使用契约，提交业务流程的定义，搜索匹配所需云服务，并与流程的定义进行绑定。
At workflow initial stage, users firstly sign the contract in cloud computing platform, submit the definition of workflow, search and match cloud services, and then bind the process definition.
2. 这些新的按需云HPC资源类似于所谓的
These new HPC on-demand cloud resources resemble what has been called