Can someone help me create an ER diagram for the following scenarios?
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The NFL needs to develop a database to track its teams, players, and games. The NFL is comprised of a number of teams. For each team, it is important to know the name, city, mascot, owner, and number of years they have been a part of the NFL. Each team is comprised of players. Players can only play for one team. The NFL only cares about tracking the name, phone number, address, and age of the players. One players on each team is the captain of the team. The captain leads the team through his career with the team. Players can participate in many games throughout the season, but due to illness or injuries, they may miss games. Naturally, you need many players to have a game. For each game, we need to track the date, weather condition, host city, and number of injuries. Players may change positions depending on the game. We need to track what position they played for each game; however, they will play the same position for an entire game. Draw the ER diagram to represent this scenario. Eller College of Management is comprised of several different types of undergraduate students (MIS, Accounting, Finance, and etc.). Eller must capture the name, age, hometown, and email address for all students. For the accounting students, they must track the student's intention of pursuing their CPA. For MIS students they must track the different technical skills each student has. MIS students may not necessarily have any technical skills yet, but some students may have many skills. For example, many MIS students may know SQL. For finance students, Eller must track their senior capstone proposal. Students may submit more than one proposal. For each proposal, the title and if it was completed needs to be tracked. Draw the ER diagram to represent the entities, attributes, and relationships described. Be sure to list all assumptions necessary. Draw an ERD for the following situation. Soon after graduating from the University of Arizona, you will be bombarded by the UA's alumni association for donations. The alumni association operates in all 50 states. For each alumnus, the alumni association needs to track their name, graduation date, address, email, phone number, estimated annual salary, and degrees. Alumni may have more than one degree. To raise money, the association holds different events. The events can include dinner receptions, tailgating, and happy hours. For each event, the name, location, and date must be tracked. Additionally, the alumni association needs to track how much money an alumnus donated at each event. The association also reach out to graduates by mail, e-mail, telephone, etc. The association records the type of communication (e.g., email) and some information learned from the graduate from each of these communications. Since communications are very personalized, each one is unique to the alumnus. When a development officer from the alumni association knows that he or she will be meeting or talking to a graduate, a report is produced showing the latest information about that graduate and the information learned during the past two years from that graduate from all contacts and events the graduate attended
