Through this lecture, I was able to gain an interesting perspective on system architecture. In general system design, it is common practice to separate the database and application server for stability and scalability, but I learned that in certain situations, it can be more cost-effective and operationally efficient to integrate and operate them together. In addition, it was very beneficial to understand not only the technical aspects, but also the impact of system design decisions on business and marketing strategies. With the use of artificial intelligence, I am confident that I can quickly and completely develop apps and websites on my own.