augmented reality (AR) is the superimposition of digital data, usually an image, onto real-world objects to enhance the user’s understanding of the real-world environment. Augmented reality applications enable engineers to tie contextual digital information within the AR program to an AR marker in the real world. When an AR web browser plug-in or computer application receives digital data from a known AR marker, it executes the marker’s code and layers the contextual information. Engineers can use AR in many ways, such as a 3-D visualization of a facility installation design onto a project site.