Answer: In order to design an ER model we have to do the following steps:
1. Identify the entities:
- Customers
- Employees
- Sales
2. Atributes:
- Customers
ID
Name
Age
Adress
Nationality
Credit limit
- Employees
ID
Name
Age
Adress
Nationality
Salary
Position
Amount of sales
- Sales
Id_Sales
Date
Invoice
Id_Product
Quantity
Unit Price
Total
Tax
Id_Customer
Id_Employees
Sales commission
3. Relationships:
- An employee can make many sales.
- Also, a customer can have many sales.
- An employee will earn a commission from a sale.
4. Primary Keys:
- ID (Customers and employees)
- Id_Sales
5. Foreign Keys:
- Id_Customers
- Id_Employees
Explanation: The Entity-Relationship Model (ER) is a basis design methodology of Data that consists in representing at a conceptual level the data that support the operation of a system.
The basic components of a MER are:
1. Entities: Represents an object with a physical existence, in this case, customers, employees and sales.
2. Attributes: Represents the caracteristics of an entity. An employee will have a name and ID, also an adress and salary.
3. Relationships: Represents the association between entities and how they work each other, for example, the posibility of the same employee making several sales.
Answer: $2500
Explanation:
The amount of investment interest expense deduction for the year will be calculated thus:
The value of interest expense will be:
= Interest income + Non qualifying dividend
= $1000 + $1500
= $2500
It should be noted that the investment interest expenses will be $2500 due to the fact that thus is lesser than Fortes' expenses for the year which is $3,000 in investment interest expense.
Answer:
Failing to meet a deadline in the workplace may result in disappointing your co-workers, receiving a negative reaction from your boss, or even hurting your company as a whole. If you cultivate time management skills early, you will have a better chance of success in your future career.
Answer:
<u>d. Is it possible to make decisions without collecting data?</u>
<u>Explanation:</u>
There is <em>no need</em> for such a question since you are already requested to begin developing a data collection plan.
However, questions related to who will be responsible for collecting the data are important as they enable you to properly plan. Also, knowing the source of the data and the reason for collecting the data are important questions.