This document describes several online systems for different purposes:
1. An online event management system to help event managers schedule and organize festivals and events more efficiently. It includes modules for service coordinators, section managers, employees, and clients.
2. An online movie ticket reservation system that allows customers to reserve and purchase tickets online for a particular cinema hall. It includes modules for administrators, clients, movie distributors, and theatre owners.
3. An online blood bank system to connect blood donors with those needing donations. It includes modules for administrators and two types of clients - acceptors and donors. Clients can search for blood availability and register as acceptors or donors.