Original sentence: DFS used DCE as the RPC, and DFS derived from the Andrew File System (AFS); DCE itself derived from a suite of technologies, including Apollo's NCS and Kerberos.OSF adopted the Distributed Computing Environment (DCE) and the Distributed File System (DFS) over Sun/ONC RPC and NFS
Edited sentence: DCE derived from a suite of technologies, including NCS and Kerberos.DFS used DCE as the RPC and   derived from the Andrew File System (AFS).In the end, proposals for these  two requirements, called respectively, the Distributed Computing Environment (DCE), and the Distributed File System (DFS) won over Sun's proposed ONC and NFS.OSF solicited the proposals for various technologies, including the remote procedure call (RPC) system and the remote file access protocol