Generally, the networks bind the back-end of an application to the front-end, though all tiers can be present on the same hardware. The application handling is completed separately for database queries and updates and for business logic processing and user interface presentation. Literature Review 2.1 Two-Tier Architecture The LCM uses two-tier client server architecture as shown in figure 1. There are many functions in the LCM which the existing system don’t have as compared to the existing LAN messenger in the market with proposed system and it was found that LCM is much better than the existing systems because of some functions such as making voice calls and sending files.Ģ. In this paper, the authors focused much more on some important functions of the LCM such as, voice calls, display of call history, sending files and saving of chat conversations. Therefore, an exact object-oriented processor targeting Java is a good choice to improve the execution speed. Finally Java is a dynamic binding language, and during execution, many data type and security checking are performed to maintain the system’s robustness. First of all, the reason is Java is an object-oriented programming language and the Java computer-generated machine is a stack-based machine, but the conformist computer architecture does not support object-oriented programming in hardware directly. According to Yiyu, Chihang and Fong (2006), currently, Java is commonly used in network applications and mobile devices because of its advantages like security, strength and platform independence. Java is one of the most popular object-oriented programming languages. Proceeding of the International Conference on Artificial Intelligence in Computer Science and ICT(AICS 2013), 25 -26 November 2013, Langkawi, MALAYSIA. With the development of programming technology, to the 20th century, 80's, the object-oriented programming thinking is proposed, which gather a thing (or entity) to procedure and do not transform it into the process, so the probability of errors is bargain (Li and Xu 2010). Before 1980, it is a process-oriented programming language which alters the real-life problems into the process, and then accumulates every method to process. Sumerville (2007) defines OOP as a software design using object oriented programming language (OOPL) such as C++ and Java. Object oriented programming (OOP) was used in the development of the system. Second, network edge security strategies can limit or sometimes eradicate difficulties produced by worms and other types of malware. First, they attempt to limit the harm to the network that valid clients may cause, for example, by mistakably downloading virus infected emails or by permeable secret business information to the outdoor world. The procedures are generally designed to succeed at least two aims. According to Dusi, Crotti, Gringoli, and Salgarelli (2008), the bulk of people who used local area networks nowadays put in force security procedures at their limits. The functions of the system include voice call, send files, call history, save conversation, chat room, conference calls and so on. Introduction LAN Chat Messenger (LCM) is a chat system via local area network. Keywords: Chat, LAN, Client/Server, LCM, JAVA Programming, Object-Oriented.ġ. This system was successfully tested at one of the organizations for the domain study. The system was implemented based on a standalone application using pure object oriented language. Object oriented programming was used to develop the LCM system and the programming language utilized was JAVA, focused on the implementation of two-tier architecture within TCP/IP. The paper provides information about how voice calls are made, call history is shown, chat conversations are saved and quick file transfers are made through LCM which minimizes the communication issues, which are mainly time and cost of communication and maintenance. In the process, it enables users to make voice calls, chat and transfer of small to medium-sized files. DEVELOPMENT OF LAN CHAT MESSENGER (LCM) USING RATIONAL UNIFIED PROCESS (RUP) METHODOLOGY WITH OBJECT ORIENTED PROGRAMMING Ibrahim Muhammed Abba1, Mia Torres-Dela Cruz2, Umapathy Eaganathan3, Janet Gabriel4 Linton University College, MALAYSIA 1 2 4 Vels University, INDIA Ībstract This paper established how LAN Chat Messenger (LCM) using Rational Unified Process (RUP) methodology provides low-cost communication between staff in an organization.
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