one office of Ambo University Woliso Campus such as:-Finance

Question

Assume that you want to design a database for the office that you selected
2)State clearly the current problem of the office and the purpose of your database to the office.
3)Identify the necessary entities and their attributes for your database. Set appropriate. primary key for each entity accordingly.
4)Identify the relationships and the cardinalities among those entities.
5)Draw the E-R diagram for your database.

Answer 1

2) The current problem of the Finance office at Ambo University Woliso Campus may include difficulties in managing financial data, tracking transactions, generating financial reports, and ensuring appropriate budget allocation. The purpose of the database is to effectively store and manage financial information, automate financial processes, provide accurate and timely financial reports, and aid in decision-making.

3) The necessary entities and their attributes for the database may include:
- Entity: Staff
Attributes: Staff ID (primary key), Name, Designation, Department, Contact Information

- Entity: Students
Attributes: Student ID (primary key), Name, Department, Contact Information

- Entity: Accounts
Attributes: Account ID (primary key), Account Number, Account Name, Account Type, Balance

- Entity: Transactions
Attributes: Transaction ID (primary key), Date, Description, Amount, Account ID (foreign key), Staff ID (foreign key), Student ID (foreign key)

- Entity: Budgets
Attributes: Budget ID (primary key), Budget Name, Amount

4) Relationships and cardinalities among the entities:
- Staff has a one-to-many relationship with Transactions (one staff can have multiple transactions)
- Students has a one-to-many relationship with Transactions (one student can have multiple transactions)
- Accounts has a one-to-many relationship with Transactions (one account can have multiple transactions)
- Budgets has a one-to-many relationship with Transactions (one budget can have multiple transactions)

5) E-R Diagram:

+----------------+
| Staff |
+----------------+
| - Staff ID (PK)|
| - Name |
| - Designation |
| - Department |
| - Contact Info |
+-------^--------+
|
|
1-N
|
|
+--------v---------+
| Students |
+-----------------+
| - Student ID (PK)|
| - Name |
| - Department |
| - Contact Info |
+--------^--------+
|
|
1-N
|
|
+-------v--------+
| Accounts |
+----------------+
| - Account ID(PK)|
| - Account Number|
| - Account Name |
| - Account Type |
| - Balance |
+--------^-------+
|
|
1-N
|
|
+--------v---------+
| Transactions |
+-----------------+
| - Transaction ID |
| - Date |
| - Description |
| - Amount |
| - Account ID(FK) |
| - Staff ID(FK) |
| - Student ID(FK) |
+--------^--------+
|
|
1-----N
|
|
+--------v--------+
| Budgets |
+-----------------+
| - Budget ID (PK)|
| - Budget Name |
| - Amount |
+-----------------+