A selection method for selecting at least one service among a plurality of predetermined services that are appropriate for being provided by a telecommunication network, each service comprising at least one attribute, the method being operationally implemented by a computer including a computation software application and being characterized in that it includes the following steps of: - reception by the computation software application of a request input by a requester, the service request including at least one component relative to a class of predetermined services, the predetermined services of a same class having technical characteristics in common, the request comprising in addition an indication relating to a level of satisfaction expected relating to the satisfaction of at least one attribute of a component of the request; - for each component of the request, identification by the computation software application of the services of the plurality of predetermines services best suited to satisfy said component; - development by the computation software application of a set of candidates, each candidate including at least one service, the or each service of each candidate being a service identified as capable of satisfying at least one component of the request; - evaluation of each candidate of the set of candidates by the computation software application, the evaluation including: - for each service of the candidate under consideration, the calculation of a rate of satisfaction (x k i) of each of the attributes of said service with regard to the request, by means of a mode of calculation of a predetermined satisfaction rate; - the calculation of an overall score for the candidate under consideration by means of a predetermined cost function, as a function of the satisfaction rate (x k i) of at least one service of the candidate under consideration with regard to the level of satisfaction expected; - identification of the candidate among the set of candidates for which the overall cost of the cost function attains an optimum; and, - allocation to the requester of the or each service of the candidate identified as optimising the cost function. - reception by the computation software application of a request input by a requester, the service request including at least one component relative to a class of predetermined services, the predetermined services of a same class having technical characteristics in common, the request comprising in addition an indication relating to a level of satisfaction expected relating to the satisfaction of at least one attribute of a component of the request; - for each component of the request, identification by the computation software application of the services of the plurality of predetermines services best suited to satisfy said component; - development by the computation software application of a set of candidates, each candidate including at least one service, the or each service of each candidate being a service identified as capable of satisfying at least one component of the request; - evaluation of each candidate of the set of candidates by the computation software application, the evaluation including: - for each service of the candidate under consideration, the calculation of a rate of satisfaction (x k i) of each of the attributes of said service with regard to the request, by means of a mode of calculation of a predetermined satisfaction rate; - the calculation of an overall score for the candidate under consideration by means of a predetermined cost function, as a function of the satisfaction rate (x k i) of at least one service of the candidate under consideration with regard to the level of satisfaction expected; - for each service of the candidate under consideration, the calculation of a rate of satisfaction (x k i) of each of the attributes of said service with regard to the request, by means of a mode of calculation of a predetermined satisfaction rate; - the calculation of an overall score for the candidate under consideration by means of a predetermined cost function, as a function of the satisfaction rate (x k i) of at least one service of the candidate under consideration with regard to the level of satisfaction expected; - identification of the candidate among the set of candidates for which the overall cost of the cost function attains an optimum; and, - allocation to the requester of the or each service of the candidate identified as optimising the cost function.