| 摘要 |
<p>A system for managing user-specified compositions of software components is disclosed. The management of such distributed software applications is potentially so complex as to have been largely neglected. In embodiments of the invention, each composition includes a user-specific egress component at the end of the composition. By arranging software components to cumulatively annotate their output with an indication that they have been involved in the composition, the data arriving at the egress node can be checked against a specification of the user-specified composition. Importantly, by using annotations in this way, component software processes can be shared between different users without requiring an overly-complex management system. Additionally, in preferred embodiments, the annotation includes a reference to log files generated by each software component involved in the composition. In this way, the amount of information that needs to be included in the annotation is reduced whilst still allowing the egress component to access detailed information about the processing which the data arriving at the egress component has undergone.</p> |
