APPLICATION OF INTERPRETIVE STRUCTURAL MODELLING METHOD FOR DEVELOPMENT OF VISUALIZATION SKILLS MODULE FOR TECHNICAL COMMUNICATION GRAPHICS SUBJECT

Visualization skills play an important role in learning the subject of Technical Communication Graphics (GKT), especially in the context of Technical and Vocational Education and Training (TVET). However, previous studies have shown that most students still face difficulties in mastering this skill, especially in interpreting, manipulating, and applying two-dimensional objects to three-dimensional forms. This constraint affects the effectiveness of teaching and student achievement in the technical field. Therefore, this study was conducted to develop a more systematic and structured visualization skills model for the GKT subject. In terms of methodology, this study used a combination of Nominal Group Technique (NGT) and Interpretive Structural Modeling (ISM). NGT was used to identify the main elements that contribute to the improvement of visualization skills through expert consensus, while ISM was applied to form a hierarchical model by integrating the relationships between these elements. A total of 7 experts in the fields of technical education and GKT were involved, and seven (7) main elements were successfully identified and mapped using ISM software. The results of the analysis show that these elements have different hierarchical relationships and can be divided into two main quadrants based on the level of dependency and driving force in the development of visualization skills. This developed model provides a clearer picture of the relative importance of each element, thus serving as a guide for educators in planning more effective PdP strategies. The findings of this study are hoped to help improve students' mastery of technical visualization and contribute to strengthening the GKT curriculum and innovation in TVET as a whole.