Access control is a security technique that regulates who or what can view or use resources in a computing environment. There are two types of access control when it comes to security, physical and logical. Physical access control limits access to campuses, buildings, rooms, and physical IT assets. Building security access diagrams are very helpful when creating the floor plan of any building as it lets the builder or the architect know what kind of security measures has to be taken into consideration while constructing the building. Architects can build security access diagrams using offline or online tools like EdrawMax as it provides a library of icons, tools, and other important aspects of creating the security access floor plan.