Abstract: Systems and techniques for mediating communication between applications over a message transport bus. A software wrapper includes a virtual bus wrapper presenting an interface to the applications, with the interface being presented such that the message transport bus is transparent to the applications. The wrapper also includes a bus specific wrapper to adapt the message transport bus to the virtual bus wrapper, as well as a support wrapper. Changes to the applications being supported or to the message transport bus can be accommodated by changes to the virtual bus wrapper or to the bus specific wrapper, respectively. In particular, changes to the bus specific wrapper allow migration to a new or changed message transport bus or a system using a different message transport bus without a need to adapt each application to the new bus.

Abstract: A number of configuration elements are associated with a number of devices. Information about input configuration elements is accessed. An input configuration element is associated with one or more input rules. It is determined which of the configuration elements could be accessed by the input rules and any call chains emanating from the rules. Output rules are determined by using the accessed configuration elements, the input rules, and the way the input rule manipulates its accessed configuration elements. Each output rule may be derived from an input rule and corresponds to the same input configuration element associated with that input rule. An executable module is generated that is adapted to access at least a given one of the input configuration elements and to trigger one or more of the output rules corresponding to the given input configuration element.