Michael D. Schroeder
My candidate for the list of important paradigms for distributed computing is the concept of a "clerck". A clerck is software that provides distribution, replication, and location transparency to client programs (applications) in distributed systems. A clerck exports a service interface to a client. The interface is specialized to the function being provided : e-mail, name service, file service, printing service, data base access, etc. Typically a client will need to deal with only a single instance of the interface for a particular function. The interface presents a "logically centralized, logically local" service, even when the underlying implementation is distributed, replicated, and/or remote.The clerck software can have many different structural relationships to its client. In simple cases it can be runtime libraries loaded into the client address space and be invoked with local procedure calls. Or it may operate in a separate address space on the same machine with the client and be invoked by same-machi
|Published in||5th ACM SIGOPS European Workshop: Models and Pardigms for Distributed Systems Structuring|
|Publisher||Association for Computing Machinery, Inc.|
Copyright © 2007 by the Association for Computing Machinery, Inc. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from Publications Dept, ACM Inc., fax +1 (212) 869-0481, or firstname.lastname@example.org. The definitive version of this paper can be found at ACM’s Digital Library --http://www.acm.org/dl/.