In one general aspect, a computer system can include an existing process chain module configured to receive a plurality of segment definitions representing a plurality of existing segments defining an existing process chain implemented in a target system. The computer system can include a proposed process chain module configured to select, based on the plurality of segment definitions, a proposed process chain including a first proposed segment corresponding with an existing segment from the plurality of existing segments, and including a second proposed segment different from each existing segment from the plurality of existing segments. The computer system can include an operational relationship module configured to define an option for an operational relationship between the existing segment from the plurality of existing segments and the second proposed segment of the proposed process chain.