Systems, apparatuses and methods for technology that provides smart work spaces in ubiquitous computing environments. The technology may determine a task to be performed in a smart work space and perform task modeling, wherein the task modeling includes determining one or more user interfaces involved with the task. One or more placements may be determined for the one or more user interfaces based on one or more ergonomic conditions, an incidence of an interaction, and a length of time of interaction. The technology may position the one or more user interfaces into the smart work space in accordance with the determined one or more placements.