OMEGA is the WesternGeco seismic processing system, it provides a step-change in geophysical functionality and user efficiency. OMEGA benefits the processing geophysicist in several key areas. These included the ability to manage complete processing workflows, the incorporation of interactive processing tools, seamless integration with interpretation systems, and the active extension of seismic processing into the reservoir domain - while also providing a clear improvement in turnaround for all projects. OMEGA is a fully scalable system, capable of servicing a single or hundreds of users - running on a laptop or across many thousands of compute nodes. OMEGA provides all the necessary tools and processes to efficiently and accurately process land, marine, transition zone and multicomponent 2D, 3D or 4D seismic data in either time or depth domains.