Perancangan Mixer Adonan Roti Tepat Guna pada usaha donat “ AL” menggunakan metode AHP, QFD, dan TRIZ

Abstract

The development of appropriate technology is essential to improve production efficiency, especially for micro-enterprises such as Donat “AL” in Medan. The business faces issues with limited-capacity and unreliable mixers, requiring a redesign. This study applies AHP to prioritize user needs, QFD Phases I and II to define technical characteristics and critical parts, and TRIZ to resolve design contradictions. The main characteristics identified are bowl capacity and agitator efficiency, with critical parts including the Quick-Lock Agitator and Tiltable Bowl. Applying TRIZ Principle 12 (Equipotentiality) led to a tiltable bowl design using gravity, without additional motors. The integration of QFD, AHP, and TRIZ proved effective in designing a functional and ergonomic horizontal mixer suitable for small-scale enterprises.