Abstract: A surgery visualization system is described herein. The surgery visualization system includes a display monitor positioned in view of a surgeon and a support arm system including a first support arm and a second support arm. The first and second support arms are orientated such that the display monitor is visible to the surgeon between the first and second support arms. A 3D digital viewport coupled to the first support arm. A 3D digital microscope coupled to the second support arm. A computer system including a processor programmed to receive and process images from the 3D digital microscope and display the processed images on the 3D digital viewport and the display monitor.

Abstract: Systems and methods are presented by which a contractor can initiate a proposed variation to a project contract and request payments against the proposed variation even before the variation is approved by the other party to the project contract. A data structure representative of proposed variation is generated and maintained as the proposed variation is reviewed, approved, and elevated to become part of the actual budget for the project. Because the same data structure is maintained throughout the process and after the proposed variation is approved, payment requests, payments, and any other actions taken against the data structure before the proposed variation is approved are automatically linked to the actual budget after approval and, thereby, are recognized and processed by external accounting systems as though the variations were created by the other party to the contract.

Abstract: Systems and methods are presented by which a contractor can initiate a proposed variation to a project contract and request payments against the proposed variation even before the variation is approved by the other party to the project contract. A data structure representative of proposed variation is generated and maintained as the proposed variation is reviewed, approved, and elevated to become part of the actual budget for the project. Because the same data structure is maintained throughout the process and after the proposed variation is approved, payment requests, payments, and any other actions taken against the data structure before the proposed variation is approved are automatically linked to the actual budget after approval and, thereby, are recognized and processed by external accounting systems as though the variations were created by the other party to the contract.