CO4752: MySQL database - Simple Online Message Management System - Website Development Assignment Answer

Subject Code: CO4752 Internal Code: 1AHAGD

Website Development Assignment Answer

TASK: 1. Understanding of multi-tier web application architecture and corresponded infrastructure setup. 2. Use of Servlets as a middle layer technology for web application development 3. Use of JavaScript and AJAX for web front development. 4. Use of JSON/XML as for exchanging messages between web portal and server application 5. Use of HTML/HTML 5 and CSS for web portal rendering. 6. Use of JDBC/Hibernate to operate Database (MySQL). 7. Understanding of how authorisations and authentications of web applications are conducted and are able to implement them for the web application. Task Details 1. Web portal: The architecture of the assignment needs to be strictly three tiers based. This means web portal is only used for rendering contents, taking inputs from users and feeding back results. The portal is not supposed to handle any business logics (PHP, Ruby on Rails, JSP style portal and things similar will not be accepted and marked). You will need to use javascript+HTML 5+CSS for your web portal development. Necessary third party libraries are allowed in the implementation. It should not point any specific backend server (bound with specific IP/hostname or etc.) but needs to be configurable using some configuration files. 2. Middle Layer: A middle layer that talks to both database and web portal through message exchange. It should handle all business logics (how messages should be manipulated, how transaction is supported, authorisation and authentication and etc.). The middle layer needs to be implemented conforming to Java Servlet standard. It needs to be done in JAVA rather than any other programming languages. It should not point any specific backend database, but is configurable using web.xml configure file. 3. Database: MySQL database will be used to store data. You will need to define your database schema that support your application. For this assignment, you don’t need to worry too much about the DB normalisation rules and etc. You can use one table even as long as it satisfies your needs. 4. Message Exchange: The messages that are exchanged between the portal and middle layer need to be JSON. This leads the whole system to a completely decoupled manner. No portal will be relying on any specific middle layer’s implementation and vice versa. Both of them are only dependent on the contents of the messages exchanged and interpretations of those messages.

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