<![CDATA[Objective: This study aims to develop a website-based interactive learning media, named CommuLearn, on the Organizational Information and Communication System element for Grade X Office Management students at SMK Adhikawacana, and to analyze user acceptance through the Technology Acceptance Model (TAM). Method: This Research and Development (R&D) study employed the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). The media, accessible via both smartphones and laptops, was trialed on 36 students of Grade X Office Management 2. Data were collected through expert validation sheets and a TAM-based questionnaire, then analyzed using descriptive percentage analysis. Results: The media was declared highly feasible, with material-expert and media-expert validation scores of 100% each (Very Feasible category). User acceptance reached an average of 78.69% (Accepted category), comprising Perceived Ease of Use (78.75%), Perceived Usefulness (77.92%), Attitude Toward Use (80.93%), Behavioral Intention to Use (81.67%), and Actual System Use (74.44%). Behavioral Intention to Use recorded the highest score, whereas Actual System Use recorded the lowest. Novelty: This study integrates website-based learning media development with a TAM-based acceptance analysis on the Organizational Information and Communication System element at the vocational level, a combination that remains scarcely examined. The findings confirm that the media is feasible and well accepted, making it suitable as a supporting medium in the learning process.]]>
