Design is a creative activity. The designs are arrived-at based on the previously used Type. Design of components aims at technically correct economic design. Design is Based on many assumptions. The following are assumed in design of structures:
Linear material property, elastic material property, elastic material, homogeneous Material, isotropic material, steady-state load and static component. The design involves Checking for the following: head room provision, walk-way requirements (a person with Shoe, helmet and tool box in one hand should be able to walk erect), interference (hard clashes and soft clashes), interfacing of equipment and components, approach to equipment and access to components. Design is an iterative activity, manufacture-ability, transportability, store-ability, erect-ability, commission-ability, operate-ability, service-ability and dispose-ability. Designer should be aware of "Cradle to Grave" of the equipment.