VAT analysis is a procedure for determining the general flow of parts and products from raw materials to finished products. A V structure corresponds to the divergent product structure (the letter V has the same shape as the symbol !). An A structure corresponds to the convergent product structure (the letter A has the same shape as the symbol &). A T structure consists of numerous similar finished products assembled from common assemblies, subassemblies, and parts. See the feature product variety concept below.