A data-based methodology for improving product quality is proposed. Referred to as Data-Driven Quality Improvement (DDQI), the proposed method can cope with qualitative as well as quantitative variables, determine the operating conditions that can achieve the desired product quality, optimize operating condition under various constraints, and thus can provide useful information to improve produ...

The aim of this paper is to develop an optimization model for quality improvement by considering quality investment in rework policies and supply chain profit sharing. To improve product’s quality, the decision of process target and its tolerance is important since it directly affects the defective rate, manufacturing cost, and loss to customer due to the deviation of product from its specifica...

Our research activities are focused on formal specification based product and process quality improvement of a software system. We start with a formal specification based pragmatic view on software specification, software refinement, software enhancement and software testing. These features are further explored for the improvement of product and process quality. On the basis of these features w...

background:patient concerns represent opportunities for improvement in orthopaedic care. thisstudy’s objectiveis to identify the nature and prevalence of unsolicited patient complaints regarding orthopaedic care ata tertiary referral hospital. the primary null hypothesis that there are no demographic factors associatedwith complaint types was tested. secondarily we determined if the overall com...