Planstack is a web-based application that organises the coordination, communication and resource management for the coordination processes between contractor, owner and subcontractor. The owner is directly involved in the processes, which makes the sampling and special request process more efficient and customer-friendly. The owner's entries are then digitally evaluated and clearly displayed for the construction company. Subcontractors are commissioned directly with the application and can inform the site management when their work has been completed. All processes and communication are documented via Planstack.