1. The method comprising the steps of: executing in a computer system a first procedure which selectively launches execution in said computer system of a predetermined project definition of a set of predetermined project definitions in response to respective requests for execution thereof, the predetermined project definition relating to a second procedure upon another computer system and wherein each said predetermined project definition for processing data and comprising: a plurality of function portions which each correspond to one of a plurality of predetermined function definitions that are different, each predetermined function definition defining a process to be applied to the data and at least one input port and at least one output port that are functionally related according to the corresponding function definition; a further portion which includes a source portion identifying a data source and defining an output port through which data from the data source can be produced, and which includes a destination portion identifying a data destination and defining an input port through which data can be supplied to the data destination; and binding information which includes binding portions that each associate a respective said input port with one of said output ports.