USE CASE DIAGRAMS AND BRIEF DESCRIPTION:

Employees should have the ability to view their schedule, get updates for urgent changes, and report when they have started and completed jobs for customers on the new app. Bob should also be able to use the new app to receive emails, faxes, and online (via a website) orders from customers, schedule (or reschedule) the customer jobs if needed urgently, and send updated schedules to his employees, especially with urgent changes. As Android-based phones are cheaper and have many different manufacturers, Bob wants the apps to run on Android smartphones. The main scheduling (daily/weekly) should still be done on Bobs office computer, but sent to employees via their app. The usual requirements for security and secure backups apply. The app should be easy to use and, importantly, alert employees to any urgent scheduling changes. Employees also need to be able to confirm receipt of revised schedules. Schedules and job changes need to include information about who the job is for (the customer), the location of the job, the time for which the job is scheduled, the employees assigned to perform the job, and the tasks to be performed on the job. Each employees job schedule must be specific to that employee. Obviously, Bob cannot schedule employees for more than one job at the same time, must only schedule employees who have the right skills and equipment to perform the tasks in the job, and must allow sufficient time to do each particular job, time to travel from one job to the next job, as well as time for a lunch break, etc.

I need use case diagrams and use case brief description based on this scenario. I hope you can help me. Thank you