This new food donation app has many useful features to help manage food donations easily. All users should sign up to make sure the application is secure$.$ Signing up is free and available for everybody but should be verified by email or phone number. Users can share user$$s details $($name$,$ address, phone number, user type $($donor or recipient$),$ and preferences such as types of food preferred $($fresh$,$ canned, cooked, $...)$ in user profile. Donors can list their food with details like what it is$,$ how much it is$,$ when it's good until $($if a food in a listing expires, the listing should be deleted automatically$),$ and where to pick it up$.$ They can even add pictures to be transparent. Donors can choose to hide their identity from recipients, but the application will keep track of who is the donor for each listing.

To make things smooth for everyone, the application should provide a search tool for recipients to find nearby food based on location, preferences, and dietary needs. The application should also allow a recipient to get real$-$time updates on new listings, and scheduling pickups in an easy way through the calendar feature.

The application should provide a built$-$in chat system so donors and recipients can talk in real$-$time to coordinate things. Location services are used to match donors and recipients accurately. Users can leave feedback and ratings to build trust in the community. We take privacy seriously, following all the rules and user preferences to keep user data safe.

Fairness should be taken into consideration. Donations should be distributed fairly, considering how often someone asks for help and how urgent their needs are. There's a priority system for emergencies, and users can share extra info to get help faster. The application should prevent misuse, such as limiting how often someone can get help. Fair play should be encouraged with clear guidelines, and if a user thinks something's not fair, there's a way to appeal. The application should be designed to be easy for everyone to use, no matter where they're from or what language they speak.

For administrators, a comprehensive reporting feature provides insights into the platform's performance. It enables administrators to track donation trends, user activities, and overall impact. The reporting tool offers valuable data that helps in decision$-$making, optimizing the platform, and identifying areas for improvement.

Furthermore, the management tool includes functionalities exclusive to administrators. They can monitor and moderate user activities, ensuring adherence to community guidelines. The system also allows administrators to review and address disputes, ensuring fair and impartial resolutions. An appeals process, overseen by administrators, provides an additional layer of fairness.

To combat misuse, administrators have access to anti$-$abuse measures, including the ability to set donation frequency limits and detect irregularities. Regular audits and user feedback mechanisms empower administrators to continuously refine the system and address emerging challenges.

You are free to add more operations to the description above that user see interesting.

For this phase, write a system proposal that includes:

a$.$ Specify the list of the usecases in the system and then draw a use case diagram.

b$.$ Draw an activity diagram for each process that you identify in the system.