Give an Entity Relationship Model for this case In a company you want to manage information about access to web pages by its employees. For each access it is required to know the url of the page, the date and time of access, the user who accessed and the date and time the page was closed. For each user, her name and the department where she works are managed. Access records are required to be obtained by page, by user, by date and by time band (for example,business hours, lunch hours, etc.) Design the conceptual scheme of this system, including assumptions and constraints.

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