## 2 Past Research  
Accessibility computation and validation are important research areas that are aligned with the human-computer interaction (HCI) domain [14]. The HCI domain focuses on effective interaction between humans and computers, whereas accessibility computation focuses on effective service to people with disabilities, to empower them through computer technology [15]. The objective of accessibility computation is to incorporate computer technology into human activity, as computer technology can reduce people's dependency on human assistance that might be expensive, complex, or not available on demand. In particular, computer technology can be a great advantage for people with disabilities, by providing a wide array of advanced services that could replicate human interaction. This paper focuses on an analysis of the accessibility of digital platforms, particularly hospital web-page accessibility, to enhance their accessibility status for people with disabilities. In the last few years, accessibility analysis has been carried out globally by various research groups [16; 17; 18; 19]. The evaluation of healthcare web pages has been recently conducted by several research studies, considering several aspects [19; 20]. In the context of accessibility conformance, [PERSON] et al. [14] evaluated hospital web pages in Poland, focusing on website performance, availability, SEO quality, and mobile friendliness. [PERSON] et al. [15] investigated healthcare web-page accessibility in terms of readability. [PERSON] et al. [21] evaluated COVID-19 vaccine registration web pages through automated accessibility-testing tools. These studies focused on web pages from a particular country or geographical region using several automated accessibility-testing tools. Other studies focused on other domains and techniques, such as a longitudinal comparison of the tested results of educational institutions' web pages. This technique is effective for the analysis of accessibility results [22]. In addition, Hungary-specific web accessibility analysis has been carried out in the educational domain through automated accessibility-testing tools. In addition to the educational domain, there were studies of e-commerce and tourism web pages, including some specific applications associated with assisting people with disabilities [23; 24; 25]. In addition, most of the past studies considered an evaluation of the accessibility of desktop and laptop browsers [26; 27]. Few studies focused on mobile browser accessibility evaluation, as mobile devices are easy to use and are increasingly popular among people with disabilities [28; 29]. These studies addressed several requirements that can enhance the accessibility of the mobile platform. Web accessibility research has become an important topic for researchers across the globe. From different parts of the world, researchers are contributing by focusing their efforts on the particular research issue of accessibility. However, there are several issues associated with accessibility that remain unsolved. Furthermore, to improve inaccessibility research, [PERSON] and [PERSON] [30] suggested that the variable-magnitude approach is effective in identifying the accessibility of web pages in depth. They computed the accessibility barrier of several web pages through a variable-magnitude approach, considering AChecker and WAVE reports. Their proposed approach was effective; however, we found some limitations that could reduce the effectiveness of their evaluated results. For example, for severity-factor selection, they chose a constant value of 0.1, which should be applicable for all the variables; however, they did not incorporate the severity factor for the initial variable (likely error, error). In other cases, the dimension of the input set of two algorithms was different (3:2), which might lead to an inappropriate calculation of the overall score. In addition, for different assessment parameters, [PERSON] and [PERSON] did not classify the dependent and independent parameters and their potentiality.