(a)determine the functional and material requirements, observing any requirements of relevant codes.
(b)translate these into working drawings and specifications which incorporate value engineering, production and quality engineering, reliability and research and development, as appropriate.
(c)eseablish tolerances and acceptance criteria.
(d)design the joints such that access for welding and testing is available.
(e)operate within economic and programme constraints.
The part played by the desiger in the success of fabrication is most important and, to ensure his conformity , a “design review “ is desirable in many cases such reviews should held at three stages:
(a)product definition,
(b)basic conceptual design,
(c)detailed design.