1， what is the relationship between database and database management system? Is Access a database or a database management system?
2,where do MARC records preserve in libraries? in a database connected with the whole library system? Dose OPAC construct with these MARC records? How can computers read MARC since computers can only understand 0 and 1 but MARC are constructed with words, characters and sentences?
3, Metadata create manually or automatically? in what condition can metadata invent by computers?
4,Since there is no unified metadata schema,how we realize interoperability in Dublin Core, MARC and MODS?
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