Data accessibility refers to the ease with which individuals or organizations can access and retrieve data from various sources. This research area focuses on developing tools, technologies, and policies that enable seamless access to data in order to facilitate data sharing, collaboration, and analysis. The goal of data accessibility research is to make data more easily available and usable for a wide range of users, from researchers and policymakers to businesses and the general public. This area also involves exploring ways to improve the interoperability, quality, and security of data to ensure that it can be accessed and utilized effectively.