abstract services process的用法和样例：
- General purpose middleware such as file systems, database managers, directories, and workflow managers provide these abstract services on top of the physical grid.
- Compile after sales service process document and carry it out.
- The service process could not connect to the service controller.
- Thus, if the service process is compromised, malicious code cannot take advantage of privileges that were not explicitly requested by the services running in the process.