A service grouping and allocation method and system. The method includes retrieving, by a computing system, a list of candidate services. The computing system retrieves service identification techniques data associated with the candidate services and identifies process elements associated with first candidate services of the candidate services. The first candidate services comprise a process decomposition service identification technique. It is determined if the computing system comprises first mapping data indicating relationships between the process elements and associated functional areas. The computing system generates and stores results data associated with the relationships.