Navigation / AcquisitionOPDS is based on resources and collections A collection aggregates resources Two kinds of resources : Navigation link Catalog entry … for two kinds of collections : Navigation Acquisition
Acquisition linkAcquisition in OPDS means accessing a publication associated to a catalog entry Multiple acquisition scenarios : Open Access Sale Lending Subscription Extract Undefined
Catalog Catalogs are discoverable and can be shared We use catalogs to… discover browse search acquire contentCatalogs are meant to organize large collections,enable content providers to curate them, provide an integrated experience for the end user
Shelf A shelf is where I store my content Shelfs can be… specific to a catalog global or aggregated public or private synchronizedA shelf enables the user to find and read previously acquired content anywhere
Callback A callback is a message It contains… how to acquire the content metadata location of the shelf & catalog service discovery informationA callback is a message between the content provider and the reading environment.It opens the door to the reading ecosystem.