Activity-based working is a specific subset of agile workspace design — it refers specifically to the removal of assigned desks combined with provision of multiple activity-specific zones. Agile workspace design is the broader principle of designing space to match actual work patterns, which can include ABW or can apply to assigned-desk environments where the space mix (open vs. enclosed) is redesigned without removing personal desk assignments. The shared principle is data-driven zone allocation with genuinely differentiated acoustic environments.