Engineers designers stand on the roof of the building under construction and discuss the plan and the progress of construction using a tablet and mobile phone

building - activity building contractor construction industry digital tablet technology using digital tablet engineer portable information device modern mobile app mobile phone smart phone wireless technology touchpad blue-collar worker touch screen two people men computer drawing - activity working foreperson design professional internet architect russia teamwork discussion communication film - moving image examining networking colleague occupation planning 4k resolution white people blueprint people explaining manager non us film location telephone women design adult horizontal adults only house city touching advice