[Story] Activity UX design

[clean99]

As the core of this project, we make an activity manage system for both teacher and student to public, register activity easily. I make first demand version as follow, feel free to discuss using comments:

Background

Currently, we have three types of roles, which are admin, manager, user. A activity will record and interact with three types of people once it s created, which are host, applicant_people, volunteer.

Use case

1. admin/manager
   Admin/manager both have permission to CRUD all activities, they can assign a group of host, which be assigned limited permission of update the specific activity.
   admin/manager have permission to handle all of the applicant and volunteer register, including approve and reject.
2. user
   User can only read and applicant as an applicant_people or volunteer(they are mutually exclusive, you either be an applicant_people or volunteer). user can be grant as a host of an activity.
   When user apply as an applicant_people or volunteer, it should show the status of application, there are three status: applied, approved, rejected. applied can become approved or rejected, but approved and rejected can only exchange and can't become applied again.
3. host
   When one being granted as a host, he is in the list of the activity host and will be display to all user.
   Host have permission to update the activity's almost all details, excluding host field and is_deleted. Host can approve apply of user, too.