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The life cycle of multimedia metadata

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6 Author(s)

During its lifetime, multimedia content undergoes different stages or cycles from production to consumption. Content is created, processed or modified in a postproduction stage, delivered to users, and finally, consumed. Metadata, or descriptive data about the multimedia content, pass through similar stages but with different time lines. Metadata may be produced, modified, and consumed by all actors involved in the content production-consumption chain. At each step of the chain, different kinds of metadata may be produced by highly different methods and of substantially different semantic value. Different metadata let us tie the different multimedia processes in a life cycle together. However, to employ these metadata, they must be appropriately generated. The CODAC Project, led by Harald Kosch, implements different multimedia processes and ties them together in the life cycle. CODAC uses distributed systems to implement multimedia processes. The project's core component is a multimedia database management system (MMDBMS) which stores content and MPEG-7-based metadata. It communicates with a streaming server for data delivery. The database is realized in the multimedia data cartridge (MDC) - which is an extension of the Oracle database management system - to handle multimedia content and MPEG-7 metadata.

Published in:

MultiMedia, IEEE  (Volume:12 ,  Issue: 1 )