1. An apparatus for collaborative analysis pre-processing of electronic models of engineering objects, the apparatus comprising: a data access module configured to provide access to a model of an engineering object to a first user and a second user; a change control module configured to receive a de-featured model of the engineering object generated by a first user by editing the model of the engineering object during a first editing session; the change control module further configured to receive one or more FEA pre-processing operations for the model of the engineering object defined by a second user during a second editing session that overlaps the first editing session; and the change control module further configured to automatically apply the FEA pre-processing operations for the model of the engineering object onto the de-featured model of the engineering object to provide an updated model of the engineering object.