Engineering and scientific and technology consulting services, namely, engineering calculations, rendering of evaluations, estimates, research, and reports in the field of construction; Computer programming services, namely, steel detailing services, in the nature of producing detailed drawings for steel fabricators and steel erectors; Graphic illustration and drawing services, namely, providing graphic illustrations and drawings of commercial and industrial building designs, and converting building designs or markups to electronic CAD drawings; Engineering and support services, namely, design and development of erection plans, specifications and models and fabrication specifications and drawings in both printed and electronic formats for use in connection with steel detailing, steel fabrication, and steel erection industries; Computer software development