1. Explain why a conceptual model is important for the database design process.

2. Suppose you want to design a database to keep track of potential customers for new products, as well as your existing customers. You need to design the database so that the features of the new product are captured. You want to record which employee contacted each potential customer, the details that are known about the customers, and which of the new products, specifically, a customer might be interested in. For the new products themselves, you need to keep track of which employees are responsible for promoting them. Create a conceptual model using either an entity-relationship diagram.

3. If you were to implement this application, what additional information would you want to include in your conceptual model? Justify your answer in terms of the real-world application.