group diary and time management system

Identify possible objects in the following system and develop an object-oriented design for them. You may make any reasonable assumptions about the system when deriving the design.A group diary and time management system is intended to support the timetabling of meetings and appointments across a group of co-workers. When an appointment is to be made that involves a number of pleope, the system finds a common slot in each of their diaries and arranges the appointment for that time. If no common slots are available, it interacts with the user to rearrange his or her personal diary to make room for the appointment.

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