Service-Oriented Workflow for Digital Media Broadcasting

The broadcasting industry is faced with increasing demand for the digitalization of their systems. The growing market for rich media content combined with the high availability of affordable bandwidth and the multiplicity of delivery channels, is leading the enterprises to evaluate how to create, manage and distribute digital media in a more efficient and strategic way. In this context the introduction of a Service Oriented Architecture (SOA)-based workflow system can produce real benefits such as cost savings achieved through a new broadcasting operational model and a more effective usage of the existing content. It can also achieve a direct impact on future revenue by the creation of new on-demand services and content. It not only supports process integration and workflow being managed independently of content and application technology but also provides the transformation to an all digital workflow. The purpose of our digital media system implementation project was to provide modularity of each process unit and increase the reusability of media contents in the near future. The first step of digital network broadcasting system at OOO TV in Korea was to establish the basic workflow between program planning, editing, transferring, transcoding, archiving and broadcasting over-the-air, and sustaining stable operation of the workflow. In the second phase, we are going to provide scalability and maintenance of the system. For this project, we implemented workflows which deal with media processing. The proposed approach improves the integration among content creation, ingest, management and distribution systems and underlying business systems. Additionally, it removes the media dependency on the application—freeing applications to handle other tasks—and simplifying the management of changing complex workflows. The workflow consists of composite services which are web services and can be invoked programmatically from a web service client. In this paper, we will describe how we implemented the digital-media business process through a workflow system, specifically in the area of tapeless network broadcasting system with specific examples of workflows.