An apparatus for determining a reuse value of a service component associated with a first service in a service orientated architecture, the apparatus including: a first assignor component for assigning a first variable to the service component, the first variable associated with a process of generating the service component; a second assignor component for assigning a second variable to the service component, the second variable being associated with a reuse factor derived from a reuse of the service component in the first service; and a calculation component for using the first and second variables to determine a third variable associated with the service component, wherein the third variable is associated with a reuse value of the service component for reuse in a second service.