field, the change normally needs to be documented to show what was actually constructed. This is referred to as change management. Hence, the owner usually requires a final record to show all changes or, more specifically, any change that modifies the tangible portions of the finished work. The record is made on the contract documents – usually, but not necessarily limited to, the design drawings. The end product of this effort is what the industry terms as-built drawings, or more simply, "as built." The requirement for providing them is a norm in construction contracts. Construction document management is a highly important task undertaken with the aid of an online or desktop software system or maintained through physical documentation. The increasing legality pertaining to the construction industry's maintenance of correct documentation has caused an increase in the need for document management systems. When changes are introduced to the project, the viability of the project has to be re-assessed. It is important not to lose sight of the initial goals and targets of the projects. When the changes accumulate, the forecasted result may not justify the original proposed investment in the project. Successful project management identifies these components, and tracks and monitors progress, so as to stay within time and budget frames already outlined at the commencement of the project. Exact methods were suggested to identify the most informative monitoring points along the project life-cycle regarding its progress and expected duration. Closing Closing includes the formal acceptance of the project and the ending thereof. Administrative activities include the archiving of the files and documenting lessons learned. This phase consists of: Contract closure: Complete and settle each contract (including the resolution of any open items) and close each contract applicable to the project or project phase. Project close: Finalize all activities across all of the process groups to formally close the project or a project phase Also included in this phase is the post implementation review. This is a vital phase of the project for the project team to learn from experiences and apply to future projects. Normally a post implementation review consists of looking at things that went well and analyzing things that went badly on the project to come up with lessons learned. Project control and project control systems Project control (also known as Cost Engineering) should be established as an independent function in project management. It implements verification and controlling