Requirement Acquisition for Information Systems - A Meta-Modeling Approach Using Ontologies.

A setting tool for anchor rods of attachment anchors, which have a rear end section (P) having a polygonal cross-section, the setting tool including a housing (2) provided with an insertion end receivable in a chuck of a percussion rotary drill and a rod receptacle (5) provided at an end of the housing opposite, in an axial direction (A), to the insertion end (5), the rod receptacle (5) having an axially extending inner surface (6) provided with at least two ribs (7) projecting therefrom and extending in the axial direction (A), with the ribs (7) defining an inscribed cylinder (Z) having a diameter (x) larger by from about 0.05 mm to about 0.5 mm than a diameter (y) of a circle (K) inscribed in a polygonal cross-section of the rear and section (P) of the anchor rod.