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Since a branch belongs to many customers and many customers belong to a branch, then the relationship is many-to-one.Īs a branch has multiple employees, similarly multiple employees work in a single branch so a one-to-many relationship exists.Īs a customer can borrow multiple loans, similarly multiple loans can be given to a single customer, so this is a one-to-many relationship. Since a customer can have multiple accounts, and an account can be owned by multiple customers, then a many-to-many relationship is formed. Step 4: Once you have all the relationships mapped out, now draw the actual lines. Based on the cardinalities, you have to place the appropriate sign. Step 3: In this step, you have to analyze and identify the relationship between different entities. Here, the key attributes are customer ID, account no., branch ID, loan no., and employee ID. Loan: Loan No., payment mode, date of the loan, and amount.Įmployee: Employee ID, employee name, date of joining, experience, and qualification.Īlso, identify the key attributes. Step 2: The second step is to list the attributes of the entities mentioned in the first step.Ĭustomer: Customer name, customer ID, and customer address.īranch: Branch ID, branch name, branch address. In a banking system that has the constraints mentioned above, the main entities will be: Step 1: The first step is to note down the main entities.
SEQUENCE DIAGRAM ONLINE BANKING SYSTEM WITHDRAWAL HOW TO
Since ERDs make our work a lot easier for us, we will guide you step-by-step on how to create an ERD, for your Banking System, in one of the best drawing software - EdrawMax Keeping an eye on all the employees is a tiresome job, so ERDs help us in maintaining a proper record.Īll these problems can easily be resolved by designing an Entity-Relationship Diagram. Since a single customer can borrow more than one loan, it becomes a problem if you don’t have a proper database to keep track of the loans.Ī branch has a lot of employees and all of them have unique features. So, you need a relational database of all the customers in a branch and how they are similar or linked (if at all). ERDs help to link the accounts to a single customer and form a relationship.Ī single bank branch has multiple customers. Open this template to view a detailed example of a banking system use case diagram that you can customize to your use case. Organize a banking system’s interactions.
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So, keeping track of each account is difficult. This banking system use case diagram can help you: - Summarize the details of your system’s users (also known as actors). Some customers have more than one account. There are too many entities in a bank and so the ER diagram helps to accommodate all of them. Some of the problems that can arise in a Banking System are as follows: ER diagrams are usually used to resolve some sort of issue and so they always have a certain problem to solve.