## 4 Results and Discussion
### Summary of the Evaluation Experiment's Result  
Descriptive statistics from the questionnaire analyzing the opinions of the instructional technology experts revealed, in summary, that approximately 96% of participants (strongly agree and agree) thought the current proposed ETBP was a suitable specialized web-based platform for teaching design and production of the online ETB to students studying instructional and information technology, with an overall mean of 4.70. Nevertheless, a few minor enhancements to the suggested function were recommended by the assessment process. These included the user interface design, tools for users, quizzes, reports, ETB designer, and ETB creator. Some recent research concentrated on creating customized learning platforms for teaching particular subjects and student groups, such as [30] who presented a specialized learning platform for teaching biology to secondary school students. Moreover, [31] offered a specialized web-learning platform in the medical domain for undergraduate medical students. Additionally, [32] introduced a specialized web-learning platform for supporting gifted children's education. Also, [33] presented a new distance-learning platform for creating and delivering learning content for deaf students with sign language translation videos. A web-based platform was also provided by [34] to support the learning process of visually impaired children. Other recent studies [9; 10; 11; 12; 13; 15; 16; 17] focused on positive learning aspects with audiobooks or digital talking books for learners and did not focus on developing a specialized learning platform for designing and creating online ETBs. Compared with this literature, the primary distinction of our proposed platform is the presence of a web-based platform that supports instructors' teaching skills in designing and producing online ETBs for instructional and information technology students. The proposed platform considers an ICT teaching aid that consists of several tools developed specifically for educating students in instructional and information technology departments and can be used by any instructor. Since the suggested platform design was general, the tool's development was concentrated on supporting all educational book domains. For target students, these tools, which include ETB designer, ETB creator, ETB visual learning, and quizzes, help students boost their skills. For the coming improvement, the user interface of the current version of ETBP will be redesigned to become more satisfying and artistic in the future. The redesigned version will include an attractive user interface, a hyperlink for the ETBP title to move to the main interface easily from any page, a text hint for each tool, and a rename of the dashboard to the main page. The quiz tool will be redesigned in the future to be more satisfactory for users. The redesigned version will include instructions for creating quizzes and questions and new question types, like fill-in-the-blank and write-an-essay. This paper presents a new specialized learning platform for designing and producing online ETBs as a contribution and encourages audio-based digital learning in schools and universities. Previous studies have focused on confirming the positive impact of educational talking books or audiobooks on supporting the learning process. Our study focused on constructing a new specialized learning platform that enables instructors and students to develop online ETBs quickly. The proposed platform adopted several education theories and principles, such as microlearning [18], E-learning theory [19], cognitive apprenticeship [20], self-paced learning approach [21], and dual coding theory [22]. Thus, its instructional design's quality and worth have been validated. In addition to offering distinction for creating online ETBs, the suggested platform can increase awareness. The research paper's findings on expert usability evaluation are valuable.