The objective of this study is to compare the facility designs of existing and modern learning environment for vocational schools in accordance with 21st century learning. We begin the study with a comprehensive study on vocational schools that reflects the current condition and best practices. The next step is a comprehensive study of administrative documents and facility specifications needed to support vocational school graduates. Data and information in this study are analyzed and presented using a qualitative-descriptive approach. The method of analysis is carried out in three stages. The first stage is identifying the existing data in the field. The second step is to find the problems that become obstacles to the fulfillment of facilities in accordance with 4.0 industrial revolution. The third stage is to do an analysis between the current and modern conditions of the facilities in vocational schools. The locations chosen for the survey activities include East Kalimantan, Central Kalimantan, Jakarta, West Java, Central Java, East Java, and Yogyakarta. This study finds that the existing facilities in vocational schools are lacking and also concerning. This needs proper attention and handling such that these school facilities may be transformed into modern facilities.

Many vocational high schools have implemented a school quality assurance system, but the quality of their graduates is still low. This study aimed to evaluate efforts made by school principals, teachers, school committees, and vocational students to achieve vocational quality assurance, especially in preparing the School Self Evaluation (SSE) as the main instrument in the accreditation activities of the school. The study was a descriptive quantitative research method. The samples were school principals, teachers, school committees, and vocational students in four vocational high schools implementing a Quality Assurance System, especially QMS ISO 9001:2008 or QMS ISO 9001:2015. The schools were located in Yogyakarta and Central Java. Research data were collected based on the results of the distribution of questionnaires (instruments), interviews, observations, documentation studies, and Focus Group Discussions (FGD). The data were analyzed based on the level of achievement of the eight National Education Standards (NES) that had been set in the syllabus. Several findings were obtained. First, schools used four stages: setting the standard, completing the standard, continuous evaluation, and quality improvement. Second, schools have taken correct and appropriate steps in achieving their vision and mission based on the formulated SPMI guidelines. Third, schools have implemented eight NESs standards, including graduates, content, process, educational assessment, educators and education personnel, educational facilities and infrastructure, education management, and financing standards. Fourth, each vocational high school had similarities and differences in strategies and methods in achieving the school's vision and mission. This study has illustrated how the vocational high school conducts the quality assurance for school self-evaluation. Future studies should focus on providing more supports for these school to improve their quality.

In the present times, Non Destructive Tests have been applied in many quality evaluations of existing wood structures. One of the Non Destructive Tests (NDT) is based on Ultrasonic Pulse Velocity (UPV). The use of UPV method among others are to estimate the strength of wood, the grade of wood based on Specific Gravity as well as elastic properties of wood. This research will apply the NDT technique. This research used 15 wood test samples in five groups, which were reference Teak (code JT), Yellow Ballau (BK), Camphor (KP), Coconut (KL), and Breadfruit (SK). Those samples were of 100 mm in width, 60 mm in depth, and 500 mm in length. The Ultrasonic Pulse Velocity(UPV) test was conducted with indirect test method. The test result showed that the objects test of Teak, Yellow Ballau, Camphor, Coconut, and Breadfruit are 5,65 km/s, 6,34 km/s, 6,12 km/s, 4, 72 km/s, and 4,94 km/s. Result also showed that Dynamic Modulus of Elasticity (MOEd) for the objects test are 144683 kg/cm2, 314101 kg/cm2, 173973 kg/cm2, 160094,64 kg/cm2, dan 73157,74 kg/cm2.