UX tools What is Double Diamond? A 4-stage design process model: first find the right problem, then find the right solution. Read the full article (Vietnamese) ↗ See it on the 3D graph Roles that use Double DiamondChief Product OfficerData Product ManagerDelivery ManagerGrowth Product ManagerProduct OwnerScrum Master More in UX toolsA/B TestingAI UX PatternAtomic designCognitive WalkthroughCustomer Journey MapDesign SystemDesign ThinkingEmpathy MapFishbone DiagramFitt's lawGrid SystemHeuristic Evaluation ← PreviousDevOps / Platform Eng. All terms A–Z Next →Empathy Map