Engineering parts typically have high genus, rounding features (fillets, chamfers), and presence of an internal structure. They are closed watertight volumes. Engineering models can be parts or assemblies. A part is an atomic unit and many parts are assembled to make an assembly. For example, a wheel can be a part whereas a bike is an assembly. Moreover the engineering context is unique where in part families and parametric models, i.e. models differ by relative dimensions of various local geometries, are common. So this track focuses on engineering parts and the search tasks in an engineering context.