Engineering Retail Experiences Retail success involves so much more than simply making beautiful displays. At DDG, we carefully weigh your in-store goals, logistics issues and customer considerations before we sketch. Traffic flow … lighting … location … seasonality … the competitive environment … it will be these and many other factors that will determine a display’s success. Our design and engineering specialists call upon their decades of experience in the field and, armed with the industry’s most advanced computer assisted design (CAD) technologies and rapid-prototyping systems, create the ideal display for each retail environment.