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This section contains draft specifications that have since been revised. A link to the revised specifications will be provided once they have undergone review. |
The One To Many (OTM) Specification defines two APIs to support communication between digital content repository systems (Repository) and distributed digital preservation systems (DDP) in order to facilitate depositing, deletion, restoration, and auditing of digital content managed by one or both systems. The APIs defined are the OTM Repository Gateway API (Gateway) for the Repository and the OTM Bridge API (Bridge) for the DDP. The Gateway and the Bridge APIs handle intermediary communication between the Repository and DDP and allow each system to operate without any knowledge of the internals of the other system. Each API is designed to facilitate deployment either as part of or extension to the Repository (in the case of the Gateway) or the DDP (in the case of the Bridge) or as a stand-alone application. They each provide an HTTP-based approach for authentication, communication, and data transfer.
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