This system is developed for a term project of the course in title "concurrent and distributed systems". The project is Distributed multithreaded application that exploits the power of Java EE 7 freamwork. The idea is to create and manage a system that handles visitors check-In (Entrance) to a certain compound (university, research center, security firm or else…) in a distributed manner which consists of different actors like security personnel at the gate, the visitor, the inviter (who invite the visitor), the security Guard supervisors who are accessing the system from different places (Computers) with different authorization level.
The system will be a web based system so that users of the system which are located at different nodes can access the system seamlessly.
The functional requirements of our system are the following
1.Schedule Appointment: This functional requirement is essential for the inviter to register the visitor’s by putting all the necessary information of the visitor on the system and place an appointment for the visitor prior to the visitor arrival at the compound. Generally this use case maintain who and when a visitor potentially come to the compound and request to enter.
2.Check Visitors Appointment: In this functionality the system assists the security personals at the gate of the compound to
review and check if the visitor requesting permit is valid or not and where the visitor is going after he/she enters the compound.
3.Manage CheckIn/CheckOut: In this functionality of the system the security personals at the gate maintain information
(like the time the visitor enters the compound) for every visitor who enter the compound and maintain information as well when he
moves out of the compound (like the time he moves out).
4.View Visitors History: This functionality is useful to review the past visiting activities and answer questions like who getsin, when he/she gets in and where do they get in (or who invites them to get in).
To develop this web based application I use a database to store the information and access that information accordingly. In order to
organize the application I used the following JavaEE related stack of technologies
I.Java server pages(JSP)
II.Servlet
III.Enterprise java beans(EJB)
IV.Java persistence technology(JPA)
V.JAAS
VI.Mysql
VII.Glassfish Application Server