Method and system for monitoring messages passed over a network

A system for executing an application, comprising:

• a processor coupled to memory and an interface for receiving data associated with the application;
• a data store for storing the data in a data buffer in the data store;
• a user interface for selecting one or more module instances to define a function of the application, each module instance for independently performing a respective aspect of the function, each module instance independently accessing the data buffer directly from the data store to process data contained therein to perform its aspect of the function;
• and,
• a scheduler for initiating operation of the one or more module instances in accordance with a schedule defined by one or more routing rules, the one or more routing rules for routing a pointer to the data, as stored in the data buffer, between the one or more module instances to thereby perform the function without passing the data itself between the one or more module instances.