$******$Please do not copy and paste. I want a unique answer

$****$Please use the keyboard to answer

As we explore the world of database systems, let's investigate the various phases involved in the process of database design. What are the key steps and considerations in each phase, starting from conceptualization to implementation? Please share examples or case studies that illustrate the significance of each phase in creating a well$-$structured and efficient database. Moreover, how do these design phases contribute to the overall success of database systems in terms of performance, scalability, and data integrity?