Project Deviation means any deviation from project proposal (what the contractor has proposed to the client) and project plan (a way in which the project has been expected to be accomplished). In other words it means any discrepancy between the project results as they have been agreed by the customers and executers in the contract, which may be caused by non-conformity between the plan and actual work. Project deviation may be a formal cause for project non-acceptance by the client or contract termination because of violation of its terms by executers. Anyway project deviation, if not agreed with customers and not aligned with master documents, is a serious problem which may collapse a contractor’s reputation and entail losses.
In practice a project deviation is an issue that may happen quite usually, especially if a project has a significant innovative element, so any changes and variances should be captured and regulated by change management system incorporated into a project’s governing bodies. Project deviations are a normal situation when you deal with a highly changeable environment, so in order to minimize any possible losses or serious upsets it is necessary to indentify project deviation and its prerequisites early as possible.