Illustrate the specification of PDDI
(i) The 3-D geometry of the product which is defined by a set of curves, surfaces and volumes.
(ii) The topology which describes the set of elements and relations for defining the product boundary.
(iii) The tolerance which is inherent in the accuracy of the manufacturing processes.
(iv) The future elements needed for defining manufacturing operations.
(v) The non-geometric information for organizational purposes and description of material and its properties.