For Indonesia, as the most populous ASEAN country, improving and assuring TVET quality is one major goal of educational policy. Different strategies are in place to bring learning outcomes closer to labour market requirements and to even out regional disparities. This article presents QMSiS as a practical example from a vocational high school in Makassar. Prior to the introduction of this quality management system (QMS), school quality was deterred by problems such as a lack of customer orientation, incoherent teaching activities, inefficiencies in school administration and a lack of student involvement. QMSiS combines characteristics of ISO 9001:2008 with the concept Q2E against the background of the eight Indonesian education standards.