Statistical quality control (SQC) methodology has been well recognized as a systematic approach for continuous quality improvement. Hence, SQC is adopted widely by both manufacturing and service industries as part of their operational strategy to improve quality performance. Holistically, SQC methodologies could be grouped into two categories, which are detection based methodology, such as Sampling Inspection, Statistical Process Control (SPC); and prevention methodology for instance Process Capability study, Design for Manufacturability (DFM).

Findings from literature review suggested that the implementation of SQC methodology does improved organizational quality improvement. However, SQC methodology is generally viewed by prior researchers as single entity without exploring the attribution or type of SQC methodologies that are driving quality performance. Hence, this research close the literature gap by assessing the application level of each SQC methodology within Small and Medium Enterprises (SME) manufacturers in Johor Bahru (JB), and explore the relationship between implementation level of SQC methodologies and quality performance.