UMID Applications in Practices

UMID is a SMPTE standard identifier that globally uniquely identifies an AV material. Because it is a core component of MXF and AAF, it has been also handled by the products claiming the MXF/AAF support. However, its originally intended use as a globally unique identifier to link AV material to its metadata has been seldom seen in practice. — This paper aims to achieve its original intention by introducing the concept “UMID Managed Domain” where all AV materials are fully managed via their UMIDs, resulting in any AV material to be unambiguously retrieved by its UMID. — Another important aspect of the UMID Managed Domain is that the domains from various products can be merged to produce a wider domain covering the entire system. To achieve this, however, the UMID resolution protocol spoken among those products needs to be standardized, for which a couple of basic proposals are presented for further discussions.

Published

2011-10

Content type

Original Research

Keywords

UMID, Material Number, Instance Number, UMID Application Principles, UMID Managed Domain, MXF, AAF, Material Package UID, File Package UID, UMID Resolution Protocol

DOI

10.5594/M001064

ISBN

978-1-61482-940-9