Explain what is meant by a specialization relationship. i$)$ Illustrate specialisation in the following scenario: Prepared by: Denise Allen Semester $1,$ AY $2023-24$ ABC bank wants to keep information on their customers and the accounts that they hold at the bank. A customer may hold several accounts whilst there may be accounts that are jointly held. All accounts have an account number and a balance however there are savings accounts that will have a interest rate and current accounts that have overdraft limits$.$ a$)$ Identify whether the disjoint or overlap rule applies b$)$ Identify whether the total specialization or partial specialization rule applies