Object handling analysis observes how people physically interact with products, tools, and everyday objects — the grip they use, the force they apply, the adaptations they make, and the moments they hesitate or struggle. It is particularly valuable for physical product design, packaging design, assistive technology, and any design where ergonomics, hand anatomy, or physical affordances are central design constraints. The method makes the body's interaction with objects visible and analysable in a way that verbal description cannot achieve.
What It Is
Object handling analysis involves observing and recording how participants pick up, operate, carry, or interact with a physical object. Researchers note grip type, hand position, force application, moment of hesitation, adaptive behaviour, and any verbal expressions of difficulty or satisfaction. Observations are typically made in person, video-recorded for detailed analysis, and supplemented by participant think-aloud narration or post-session interview.
How to Run It
- Select the objects or products to be observed — these can be your own product, competitor products, or analogous objects.
- Recruit participants representative of your target users, including those at the extremes of the ability spectrum.
- Ask participants to use the object to complete a natural task while thinking aloud.
- Video-record from multiple angles to capture grip, force, and body posture.
- Code the video for specific interaction events: grip type, hesitation, error, adaptation, and abandonment.
- Note which interactions are shared across all participants and which are specific to certain user groups.
When to Use It
Object handling analysis is essential in physical product design, packaging, medical device design, consumer electronics, and tool design. It is particularly valuable when designing for older adults, people with reduced dexterity, or children — groups whose physical interaction patterns diverge most sharply from the able-bodied adults who most often populate design teams. Use it early in product development to generate ergonomic design requirements.
Tips for Success
- Include participants at the extremes of grip strength, hand size, and dexterity — their struggles reveal problems that mainstream users silently tolerate.
- Analyse video frame-by-frame for brief hesitations and micro-adjustments that participants do not mention verbally.
- Compare handling patterns across left-handed and right-handed users.
- Test prototype iterations with the same participants to measure whether specific handling problems have been addressed.
