System analysis is a major activity which takes place when we are structure a latest system or changing one. Analysis will help us to understand about the existing system and also will know the requirements necessary for the latest system. And if there is no accessible system then system analysis will defines only the necessity.
In system analysis the most important factor is to identify and rectify problems in system. A well understanding of the system will enables designer to understand and rectify the system problems.
The software is implemented in the system hard disc to the server. The server program runs constantly and waits for a connection to be recognized to it and will make available on line system to automate different operations completed in the network.
2.1.1 Existing System
In past the company staff uses the legacy system of carrying interoffice mails by the messengers from one user to other user of the company or they can also use the intercoms for call conference or even in some cases emails are used for transmit of messages between the group community
There are some disadvantages in existing system
* Tedious message broadcasting system.
* Communication is not instant.
* Message transfer is done through insecure communication media.
* Communication delays.
* Maintaining the identities of all the members is not efficient. Like using manual books, diaries, etc., for storing of users information.
2.1.2 Proposed System
To overcome the shortcomings of the conventional systems, the project aims at developing a multithreaded public messaging system for broadcasting messages to every member in the channel; that allows multiple people (users) to interact with each other in a shared environment.
The proposed system aims to fulfill the following:
þ Sharing of data in a real time environment, i.e., the data broadcasted can be edited online and viewed simultaneously.
þ Providing fast, secure, reliable and cost effective broadcasting communication medium between community members.
þ Support for public and private channels of communication.
þ Multiple media transmission support; like voice, text, images, etc.
þ Personal peer messaging service.
þ A user-friendly interface
2.2 Requirement Analysis
Requirement analysis provides software designer with a model of:
Ø System information
Model can be translated to data, architectural, and component-level designs.
2.2.1 Analysis Objectives
Ø Identification of the customer’s needs.
Ø Evaluation of the system for feasibility.
Ø Perform technical analysis.
Ø Establish constraints.
Ø Create system definitions
2.3 Software Requirements Analysis Phases
The existing system provides the information about products in the form of Local Advertisements media and paper advertisements. This is not sufficient to reach the end user properly. So, the company management is willing to maintain a web site which one accomplished all firm in detailed.
Evaluation and synthesis:
After getting the clear problem definition we focused on what to do but not how to do. Ways to solve the problem and among the different ways we found and we selected the best way to solve the problem.
We made a rough diagram of the proposed system and showed it to the clients to verify whether their specifications are completely mentioned in that or not.
The software and hardware requirements and complete specifications are known. The functional and non functional requirements are known.
The constraints are known and a clear definition of the system is given.
A review of the whole process what we did and the result are shown to the clients.
2.4. Feasibility Study
Feasibility study is conducted once the problem is clearly understood. It is a high level capsule version of the entire System Analysis and Design process. The main objective is to determine how to solve a problem quickly, at a minimum expense and to check if the problem is worth solving. This system has been tested for feasibility in the following points:
Ø Operational Feasibility
Ø Technical Feasibility
Ø Economical Feasibility
2.4.1 Economic Feasibility
Economic feasibility is the most frequently used method for evaluating the effectiveness of the proposed system. During study costs are considered like costs of hardware, minimum configuration, system compatibility of H/W, etc., the proposed system minimizes the time effort of the data collection, answering queries and generating reports which results in significant saving. Thus, the proposed system is economically feasible.
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2.4.2 Operational Feasibility
Proposed projects are beneficial only if they can be turned into information systems that will meet the requirements. As current business methods are not acceptable to the users in terms of speed, timely and accurate results, users welcomed a change that will bring about a more operational and useful system. With the rarely involvement it reduced the chances of resistance to the system and change in general and increased the likelihood of the project successfully.
2.4.3 Technical Feasibility
It centers on the existing computer system and to what extent it can support the proposed system. The system can be expanded as the need arises. With the obtained technology there is guaranteed of accuracy, reliability, ease of access and security. Thus, it is technically feasible to design and develop the proposed system.
3. SOFTWARE REQUIREMENT SPECIFICATION
3.1 Software Requirements
Operating System : Windows XP,LINUX
Languages : Java
Java compiler : J2sdk1.4
3.2 Hardware Requirements
Processor : Pentium III & above
RAM : 256MB
Hard Disk : 20GB
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