I mainly worked on toy projects in Spring Framwork + MyBatis environment or did practical work using e-government standard frameworks, but I became interested in JPA and decided to complete the course with the mindset of 'let's try it first'. The comparison with the existing project using MyBatis was clear, and I couldn't help but be amazed when designing the database table structure as an Entity class. (What did I design now...) I think this is the strength of ORM using JPA. It was a really helpful lecture. Now, after learning 'ORM Basics' in earnest, I will listen to it again and proceed with the rest of the learning. Thank you.