Resource Cataloging and
Distribution System (RCDS)

2/1/99


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Table of Contents

Resource Cataloging and
Distribution System (RCDS)

It doesn't work when I click here!''

Why Good URLs Go Bad

Sources of Failure

Inefficient Network Utilization

The RCDS Approach

Other Nifty Features

The Big Picture

RCDS Components

Publication Flow

Publication Flow

Publication Flow

Publication Flow

Retrieval Flow

Retrieval Flow

Retrieval Flow

Retrieval Flow

Publication Tool

Replication Tool

Collection Manager

Catalog Servers

Location Servers

Clients

Nuts and Bolts

Innovative Features

URLs, URNs, and LIFNs

Location Independent File Name (LIFN)

URN Resolution
(works for URLs and LIFNs too!)

How LIFNs are Used

How LIFNs are Used

How LIFNs are Used

How LIFNs are Used

Propagation of
Location Information

Propagation of
Location Information

Propagation of
Location Information

Choosing from
Multiple Representations

Choosing from
Multiple Transfer Protocols

Robustness / Fault-Tolerance

Cache Support

Ease of Deployment

Implementation Status

Implementation Status

Implementation Status

Future Work

Author: Keith Moore