The users list many benefits of BIM. Companies that utilize BIM, like Skanska and Barton Malow, have reported benefits for scheduling, estimation and risk analysis, more collaborative processes and better facility management. BIM also brings the opportunity to try out solutions in advance before building the structure on site: with a constructable model, the structure can be prototyped virtually. Project parties can understand and review the design more easily, which helps guarantee its accuracy and completeness, and visualize and evaluate alternatives in terms of cost and other project parameters. BIM has gathered compliments for improved communication between project parties and generally better quality.