The method comprises the following steps:establishing a low-level computation platform model (10) from sets of sizing parameters (4) representative of the material and/or software resources necessary to carry out requests generated during the implementation of the or each application (2), the low-level model (10) comprising at least one computation node (60) modeling at least one application (2), material components, one or more operating systems, and services;defining at least one stimulation scenario (6), corresponding to a sequence of generated requests;stimulating the low-level model (10) of the computation platform using the or each scenario and using an event-driven simulation kernel of the stimulation scenario determined as a function of process planning,and,noting the traces of the operation of the low-level model (10) to evaluate the performance thereof.展开▼