20. The computer system of claim 17 , wherein using the generated semantic transformation table in tracing associations between artifacts of the first plurality of artifacts and artifacts of the second plurality of artifacts includes employing an automated traceability technique to trace artifact associations between the first and second models.
17. A computer system comprising: a processor; and a non-transitory, tangible, program storage medium, readable by the computer system, embodying a program of instructions executable by the processor to perform method steps for performing automatic trace retrieval, the method comprising: receiving a first model for a system or service, the first model including a first plurality of model artifacts at least partially represented by a first semantic style; receiving a second model for the system or service, the second model including a second plurality of artifacts at least partially represented by a second semantic style; collecting training data including one or more correspondences between artifacts of the first plurality of model artifacts and artifacts of the second plurality of artifacts; generating a semantic transformation table for converting between the first and second semantic styles using the collected training data; and using the generated semantic transformation table in tracing associations between artifacts of the first plurality of artifacts and artifacts of the second plurality of artifacts, wherein generating the semantic transformation table comprises using computer learning techniques to generate a thesaurus of corresponding terms from the collected one or more correspondences between artifacts of the first plurality of model artifacts and artifacts of the second plurality of artifacts.