Multimedia Contents Metadata Management For Pervasive Environments

One of the important aspects of a pervasive environment is the adaptation of content tornsuit a client’s specific needs and choices such as the client’s preferences, therncharacteristics of the client device, the characteristics of the network to which the client isrncurrently connected, as well as other related factors. In order for the adaptation to bernefficient while satis fying the client’s requirements and maintaining the semantics andrnquality of the content, the adaptation system needs to have adequate informationrnregarding the content to be adapted, the client’s profile, the network profile and others.rnThis thesis work addresses the issue of content metadata management in a pervasivernenvironment in relation to content adaptation. For this purpose, a distributed architecturernfor the management of metadata of multimedia content is proposed. The proposedrnarchitecture consists of components for storage, retrieval, update, and removal ofrnmetadata in the system. It also provides interfaces to external components through whichrnmetadata can be accessed. In addition, restrictions on the adaptations that may be appliedrnon the content are incorporated in the metadata. This enables the content creator tornimpose constraints on adaptations that may potentially cause the loss of criticalrninformation or a decrease in the quality of the adapted content

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