PROBLEM 1 – DATA MODELING – (35 Marks) Design and document a conceptual data model using Oracle SQL Developer Data Modeler using the following narrative. You should also make and document reasonable assumptions where you feel the case is vague, ambiguous, or missing any data necessary to meet the requirements. However, you cannot ignore or overrule the explicitly stated requirements. Show all cardinalities, primary keys and foreign keys. Use verbs to clarify your relationships. Show only the attributes that are contained explicitly in the case. Use role names for Foreign keys to clarify attributes. Those features that are mentioned here are used to evaluate your models. The narrative The narrative Acme Drug Stores consists of a chain of retail stores across Canada. Each store has a unique store number. You will need to retain each store's address and telephone #. Each store employs several pharmacists. A pharmacist works in different stores at different times, and Acme records it. Each pharmacist's name and employee ID will be kept in the database. One pharmacist is the head pharmacist for the store at a given ITIS 3P98 SPRING 2025 2 point in time. Acme maintains data on who the head pharmacist was and when. Employee IDs are unique across the company. The company dispenses a wide range of pharmaceutical (drug) products. Each product has a description and a unique DIN (Drug Identifying Number) and is dispensed at a standard price for all stores. Some pharmaceutical products have adverse effects when taken with other pharmaceutical products. These product combinations need to be defined. It is important to realize that any particular product can interact adversely with many other products and vice versa. Each store maintains its own physical inventory of these products and will need to know the current quantity it has on hand and the relevant reorder level for that particular store. Reorder levels may differ between stores. Customer information is stored only once and is shared by each store. It will include name, address and phone #. Customer ID uniquely identifies each customer. When initially presented by a customer, details for the medical prescription are also entered by the store receiving and processing it. Prescriptions are assigned a unique ID. The date written and the date presented need to be recorded. A prescription may be for several pharmaceutical products, and the total quantity dispensed for each product and its unit of measure needs to be maintained in the database. For simplicity, assume that there are no repeats. All past dispensing activity for prescriptions is retained on file. When a prescription is dispensed (filled), the pharmacist dispensing that prescription will be recorded for that prescription as well as t