This document consists of three essays discussing various aspects of data-based changes in healthcare and education. The first essay focuses on the concept of big data and data mining in healthcare, specifically the relational DBMS and data management techniques. The second essay discusses continuity planning in the workplace and provides recommendations for a preparedness program. The third essay explores the use of informatics and technology in healthcare education, highlighting the benefits and drawbacks. It also includes a review of an article on mobile technology in nursing education.