Abstract: A novel software architectural design tool allows users to perform stacking, block editing, and scaling in an efficient and intuitive manner. The user selects a resource from a resource pool, such as number of employees and square footage organized by department, displayed on a monitor. A portion of the resources are allocated to a stacking diagram using a visually intuitive interface. The stacking diagram includes bar graphs, each one representing, for example, a floor in a building. The resource pool and the stacking diagram are modified graphically and in real time. For block editing, the user bifurcates an edge of the object by selecting an edit point. In a second step, the user can edit the edge utilizing the edit point. Block editing becomes an efficient and visually intuitive process which is also in line with thought processes inherent in architectural training.