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exemplify how sustainable smart furniture manufacturers Continuous improvement (CI) is at the heart of TQM and
have successfully implemented TQM principles and circular directly supports sustainable product innovation. In this context,
design strategies. CI includes the following:
• Process efficiency: Reducing energy consumption during

Case A: Integration of ISO 9001 and Automated Quality extrusion or module embedding;
Inspection • Waste reduction: Reusing defective WPC parts or misprinted
A mid-sized smart furniture manufacturer (hereafter referred 3D elements;
to as Case A) implemented ISO 9001 quality management • Feedback integration: Using post-purchase data (e.g.,
standards across its production line in 2022. As part of this warranty claims, energy use reports) to refine future design.
transformation, the firm also introduced an automated inspection
module at the end of each production cycle. CI frameworks such as Kaizen and Six Sigma Define–
This system employs optical sensors and machine learning Measure–Analyse–Improve–Control (DMAIC) can be applied
algorithms to detect surface defects, structural irregularities, for the following:

and dimensional deviations in real time. • Evaluating smart furniture lifecycle performance;
After one year of operation, Case A reported a 30 percent • Optimising energy systems integration;
reduction in the number of defective products as measured • Improving surface finish and mechanical bonding in
by internal quality audits. composite materials.
The integration of ISO procedures and smart inspection
not only enhanced process standardisation but also enabled This yields not only higher product reliability but also
rapid feedback loops that minimised human error and improved increased material efficiency, customer loyalty, and compliance

customer satisfaction. with environmental certifications.
To illustrate how TQM can be practically implemented, we
Case B: Use of Recycled Particle Boards in Modular analyse a simplified application scenario based on Taiwan’s
Design emerging eco-furniture supply chain.
Case B is a startup specialising in modular office furniture. This case demonstrates how a full TQM cycle can govern
In alignment with circular design principles, the company a low-emission, modular, and user-adaptable smart furniture
shifted from virgin wood panels to recycled particle boards product built from pellet-derived materials.
in early 2023. This study’s proposed integration model aligned with the
These boards are sourced from post-consumer waste and propositions of Despeisse et al., demonstrating the feasibility

locally reprocessed into standard panel sizes compatible with of embedding smart technologies in re-engineered sustainable
their existing modular systems. materials while maintaining process controllability via TQM.
Through redesigning components for material efficiency and Notably, this complemented Maldonado-Romo’s lifecycle-
maximising the reuse of standard panel dimensions, Case B centred approach.
achieved an estimated 18 percent reduction in raw material
usage across its product line. Practical Challenges and Mitigation Strategies in
This shift not only reduced the environmental impact but Implementing TQM and Circular Design

also lowered procurement costs and aligned the company Through our case analysis and industry interviews, we identified
with green certification standards. three key challenges that furniture manufacturers—especially