The 21st century campus may encompass a computer lab, technology-enhanced classrooms and project rooms that incorporate digital learning tools. In some cases, students gather around a table and a screen to view a lecture via Skype or other video software. Tables may also be equipped with integrated electronic connectivity that allows students to project and share data, promoting focus and engagement among class participants. In a lab setting, students use computers to view a web-based course, take a test or make use of specialized software in subjects such as engineering, architecture or design. Interaction is generally limited.