3.In IMS/VS, an application program that has access to data bases and OS/VS data management facilities but does not have access to the IMS/VS control region or its message queues.

• 信息管理系统IMS/VS中的一种应用程序,可以访问数据库和OS/VS数据管理软件但不能访问IMS/VS控制区或它的报文队列。