Object oriented business architecture on online-exam and assignment system

Abstract

Business object architecture is a technology that was designed and developed during recent period. This architecture has a lot of benefits like scalability, flexibility and security. It helps create and develop maintainable, secure and reusable applications for further development. In business object architecture the logical architecture is separated into layers that give more scalability and reusability. Also using business object architecture developers must not write different programs for different platforms. Once created business objects can be accessible from different platforms.The goal of this thesis is implementing computer assisted exam system with business object architecture. The object is to create desktop, web and mobile applications that will use the same business objects for doing operations.The framework that is used is CSLA.NET. The library created with this framework is used by desktop, web and mobile application. For client applications only user interface is developed which uses business objects from the library. SQL Server is used for creating database. SQL Server and File server are in separate server that is accessible from all client applications. The network connection between client computers during exam is controlled by firewall. It disables all incoming and outgoing connections to the computer for holding the exam in safe environment. The implementation of the system is realized by using Microsoft .NET technology. As the development environment Microsoft Visual C# .NET is used. IPhone and IPad applications are part of the system. These applications are designed for students getting information about their grades by iii mobile phones and notifications about exams or assignments from instructors. As mobile application iOS application is developed using Objective-C programming language.