Design improvement of line marking machine using the integration of Quality Function Deployment (QFD) with Fuzzy Analytic Network Process (FANP)
Sports line marking is essential in Malaysian schools, with transfer wheel markers being the most commonly used machines. However, these machines have issues such as clogging from loose grass and soil, unstable tyres, and poor handling. This study aims to improve the design using the Quality Function Deployment (QFD) model integrated with the Fuzzy Analytic Network Process (FANP) method. A questionnaire based on user interviews identified the user needs, which were quantified and processed to address uncertainties in evaluating customer and engineering requirements (