or the diagrams in $3-2$ and $3-8,$ use the EER$/$ERD $($not UML Class diagram$)$

grammar we review in class for your domain $/$ conceptual models.

$3-2.$ Using the modeling grammar$($s$)$ of your instructor$$s choice, create a domain model $/$ conceptual data model based on the following descriptions. For each subpart of the task, augment the model from the previous step by including the aspects of the model that you can derive from the description.

a$.$ An online game service provider $($Cool Games Inc.$)$ offers several games for mobile devices that are free to download. Cool Games wants to keep track of the games it offers and the players who have downloaded its games.

b$.$ Each of the games has a title, description, and age classification.

c$.$ For each user, the company wants to maintain basic information, including name, date of birth, email address, and mobile phone number.

d$.$ The company wants to maintain a record of each user$$s age based on his$/$her date of birth.

e$.$ Cool Games wants to keep track of every time a specific user plays a specific game, including the start time, end time, and the number of times the user started and completed the game.

f$.$ For each user, Cool Games wants to maintain a list of areas of interest that potentially includes multiple values.