US Patent 7234146 Object in, object out technique

The present invention discloses a technique for processing input objects to generate output objects. Initially, an input object is received. The received input object contains input data and one input function. A type of the received input object is determined. Based on the determined type, it is ascertained whether the received input object satisfies one or more predefined requirements. When it is ascertained that the input object satisfies each predefined requirement, the input function is executed.