Spar Model SparPart Definition Example read from protege ontology for process modelling. read to Vanguard system for calculation of results SparPart Definition Web Web Height Flanges Flange Width Tooling Flanges Tooling Flanges Height Derived Values Periphery Length Web Height Flange Width Tooling Flanges Height Area Length Web Height Flange Width Tooling Flanges Height Raw Volume Periphery Length Web Height Flange Width Tooling Flanges Height Thickness Finished Volume Raw Volume Periphery Length Web Height Flange Width Tooling Flanges Height Thickness Length Thickness Finished Volume Constant Part Width Web Height Tooling Flanges Height Part Height Flange Width Overall Length Thickness Part Complexity Finished Volume Constant