1. A method for creating a service map comprising: using a processor to mine a service transaction repository containing information regarding service transactions of functionally identical services, the functionally identical services belonging to a same class of services, each service associated with at least one data feature pattern; determining data feature patterns of the services of the same class in the service transaction repository; and determining a service map associating the services with the data feature patterns, wherein the data feature patterns correspond to data features of service requests directed to the services, wherein the data feature patterns differentiate between the services in the same class of services, wherein the data feature patterns are vectors having components comprising average file size, data language, and data features useful in differentiating among services in a class, and wherein the services in the class transform a first document from a first form into a second form, and the data feature patterns include features selected from a group consisting of document language, document genre, number of words in the document, type of words in the document, document domain, document readability, and sentence length in the document.