10-10-2014, 12:53 PM
Internet
Mailing
System
[attachment=68972]
Introduction
Mail Server is an easy way of transferring mails. The working of the project is as follows. In the Login link a user have to login for transferring mails. Next page provides several links. The Home page contains several links such as my settings, Inbox, Compose, Trash, My folder, Sent Items, Address Book and Logout.
An already registered user can simply type in -his\her valid username and password, and then click the "submit" button. But those visitors who are not registered have to go to the registration page before they login. In that page user have to enter First name, Last name, Address, Postal Code, City, Phone number, Username and password.
After registration user can sign in and check or send mail .User can add new contacts and signature. Logout link will help the user to logout from the site
Economic Feasibility:
Today, software is the most expensive element of virtually all computer-based systems. For complex, custom systems, a large cost estimation error can make the difference between profit and loss. Estimation of resources, cost, and schedule for a software engineering effort requires experience, access to good historical information, and the courage to co0mmit to quantitative predictions when qualitative information is all that exists. Estimation carries inherent risk and risk leads to uncertainty. Project complexity has strong effect of the uncertainty inherent in planning. Complexity, however, is a relative measure that is affected by familiarity with past effort. Project size is another important factor that can affect the accuracy and efficiency of estimates. As size increases, the interdependency among various elements of the software grows rapidly. Software cost and effort estimation will never be an exact science. Too many variables- human, technical, environmental, political- can affect the ultimate cost of software and effort applied to develop it. However, software project estimation can be transformed from a black art to a series of systematic steps that provide estimates with acceptable risk. The system is not too costly according to the features of the application. The cost of the project is balanced. The cost of project might be increase or decrease as according to requirement of the customer. The system has developed systematically.
Data Flow Diagram
Data Flow Diagram is the graphical description of the system's data and how the processes transform the data. Data Flow diagram depicts information flow, the information flow and the transforms that are applied as data move from the input to output. It is the starting point of the design phase that functionally decomposes the requirement specifications down to the lowest level of details. Thus a DFD describes what data flows (logical) rather than how they are processed.
Unlike detailed flowchart, Data Flow Diagrams do no supply detailed description of the modules but graphically describes a system's data and how the data interacts with the system. To construct a Data Flow Diagram, we use
VALIDATION TESTING
In this testing requirements that are established as a part of the software
requirements analysis phase is validated. At the end of integration testing, the system is completely assembled as a package with interfacing errors corrected after which a final series of software tests namely validation testing begins.
Validation succeeds when the software functions in a manner that can be
reasonable expected by the user. The software validation s achieved through black box tests that demonstrates conformity with requirements
Conclusion
This project is thus used for retrieving mails through mobile device. The scope of this project is to enable the clients to retrieve mails with or without connection to the E-mail Server. It uses ASP.Net Micro Edition Wireless Toolkit as a simulator of the real time mobile device.It is based on the usage of Servlets in the web server for connection with the E -mail server to download mails.
This project deals with two modes of operation: online mode and offline mode. Online mode uses a servlet to establish continuous connection with the Email server throughout the process of downloading mails. Offline mode does not require connection with the server during the mail retrieval scenario. Registered users are provided with the provision to access their mails.
Mailing
System
[attachment=68972]
Introduction
Mail Server is an easy way of transferring mails. The working of the project is as follows. In the Login link a user have to login for transferring mails. Next page provides several links. The Home page contains several links such as my settings, Inbox, Compose, Trash, My folder, Sent Items, Address Book and Logout.
An already registered user can simply type in -his\her valid username and password, and then click the "submit" button. But those visitors who are not registered have to go to the registration page before they login. In that page user have to enter First name, Last name, Address, Postal Code, City, Phone number, Username and password.
After registration user can sign in and check or send mail .User can add new contacts and signature. Logout link will help the user to logout from the site
Economic Feasibility:
Today, software is the most expensive element of virtually all computer-based systems. For complex, custom systems, a large cost estimation error can make the difference between profit and loss. Estimation of resources, cost, and schedule for a software engineering effort requires experience, access to good historical information, and the courage to co0mmit to quantitative predictions when qualitative information is all that exists. Estimation carries inherent risk and risk leads to uncertainty. Project complexity has strong effect of the uncertainty inherent in planning. Complexity, however, is a relative measure that is affected by familiarity with past effort. Project size is another important factor that can affect the accuracy and efficiency of estimates. As size increases, the interdependency among various elements of the software grows rapidly. Software cost and effort estimation will never be an exact science. Too many variables- human, technical, environmental, political- can affect the ultimate cost of software and effort applied to develop it. However, software project estimation can be transformed from a black art to a series of systematic steps that provide estimates with acceptable risk. The system is not too costly according to the features of the application. The cost of the project is balanced. The cost of project might be increase or decrease as according to requirement of the customer. The system has developed systematically.
Data Flow Diagram
Data Flow Diagram is the graphical description of the system's data and how the processes transform the data. Data Flow diagram depicts information flow, the information flow and the transforms that are applied as data move from the input to output. It is the starting point of the design phase that functionally decomposes the requirement specifications down to the lowest level of details. Thus a DFD describes what data flows (logical) rather than how they are processed.
Unlike detailed flowchart, Data Flow Diagrams do no supply detailed description of the modules but graphically describes a system's data and how the data interacts with the system. To construct a Data Flow Diagram, we use
VALIDATION TESTING
In this testing requirements that are established as a part of the software
requirements analysis phase is validated. At the end of integration testing, the system is completely assembled as a package with interfacing errors corrected after which a final series of software tests namely validation testing begins.
Validation succeeds when the software functions in a manner that can be
reasonable expected by the user. The software validation s achieved through black box tests that demonstrates conformity with requirements
Conclusion
This project is thus used for retrieving mails through mobile device. The scope of this project is to enable the clients to retrieve mails with or without connection to the E-mail Server. It uses ASP.Net Micro Edition Wireless Toolkit as a simulator of the real time mobile device.It is based on the usage of Servlets in the web server for connection with the E -mail server to download mails.
This project deals with two modes of operation: online mode and offline mode. Online mode uses a servlet to establish continuous connection with the Email server throughout the process of downloading mails. Offline mode does not require connection with the server during the mail retrieval scenario. Registered users are provided with the provision to access their mails.