The use of composite materials makes it possible to design large, one-piece structures. Minimizing the number of parts in a design is considered a good practice, but there are often logistical limits or serviceability constraints that force a design to be built up from many smaller subcomponents which are then assembled together. The two most common methods of joining composite components into assemblies are adhesive bonding and mechanical fastening. Each of these methods has its own advantages and disadvantages depending on the design requirements