B. Relevant Research
1. Relevant previous research results that correspond to the research is
research conducted by Tyas Tikha Oktafiana 2013 under the title Implementasi Program Penjaminan Mutu Pembelajaran di SMPN 1
Bantul. The methods used in this research is qualitative method. This study aims to describe the implementation of a quality assurance program
of learning in SMPN 1 Bantul, endowments factor as well as restricting factors in the implementation of a quality assurance program of learning,
and the efforts of Bantul Junior High School1in improving quality. The equation of this research with the research that will be done by researchers
are examining about quality assurance of learning. The technique of collecting data used in the study through observation, interviews, and
documentation. The difference in this research with the research that the researcher will do is located on site. The location in this research was in
SMPN 1 Bantul, whereas research that will be done is a researcher in SMA Muhammadiyah 2 Yogyakarta.
2. In addition to previous relevant research results that correspond to the
research is research conducted Jensanaris Farhanti Soska 2014 with the title Kebijakan Mutu di Sekolah SD Muhammadiyah Suronatan
Yogyakarta. The methods used in this research is qualitative method. This study aims to describe the implementation of a quality policy in the SD
Muhammadiyah Suronatan Yogyakarta factor endowments as well as restricting factors in the implementation of the quality policy at SD
Muhammadiyah Suronatan Yogyakarta, and solutions in overcoming constraints implementation of the quality policy at SD Muhammadiyah
Suronatan Yogyakarta. The equation of this research with the research that will be conducted by the same researchers are examining about quality.
The technique of collecting data used in the study through observation, interviews, and documentation. The difference in this research with the
research that the researcher will do is located on site. The location in this research is the in SD Muhammadiyah Suronatan Yogyakarta, while
research that will be done is researcher in SMA Muhammadiyah 2 Yogyakarta.
C. Conceptual Framework