System Testing and Quality Assurance in System Analysis and Design

 The most important phase of system development is system testing. To implement the system successfully system testing is a must.

Online system, such as the railway reservation system has certainly a definite response time. To make it sure what the response time of the system is, the business done on all the screen at peak hours (with a calculation) is input and the response time of each function is guessed.

The most important thing determining the conditions for the user acceptance test is that user and the analyst both should agree upon these conditions.

The test data are prepared with the coding of the program and their documents too are prepared. This gives the programmer the information about the right testing of the programs. After the test, it is saved in the file with a view to future reference.

After the development of the test plan the system test starts with separate testing of each module of the program. After the individual testing of modules of the program, it is turned into a unit in the group.

System testing includes Program Testing, String Testing System Testing. System Documentation and User Acceptance Testing.

The software development passes through many phases of its life cycle to reach to its final form and the goal of each phase is to remove the mistakes and make it error free.

Correctness, means to what extent the program completes the purpose of the user and system specification.

task Reliability stands for to what degree the system in a given time performs the expected

The aim of quality assurance in this stage is to prepare a document of the requirements which provides technical specifications for design and development of the software.

This document makes the communication between the system developer and the user formal and enhances the quality of the system. Besides, it gives accurate information for right documentation.

In this stage of Software design specification, software design document defines the overall architecture of the software which provides the described functions and features from software requirement documents.

There are three principal levels of quality assurance. They are System testing, System validation and System certification

In system testing, basically, the errors are tried to be rectified.

In system validation, the quality of the software is tested in both real and artificial environment.

The third level of quality assurance certifies that the software is totally appropriate and as per the standards.

In short, the quality of an information system depends upon its design, test and implementation.

There are potentials of development of automated devices and software means to be used in the testing, amidst which functional tester is the same sort of device.

It is necessary to include whole auditing technique in the planned testing of a system in addition, the system should consist of unique control elements.

Data processing auditor should be included in most steps of system life cycle.

The efficiently performed task of an orgnisation depends upon the efficiency of the staff members of that organisation.

According to a particular concept the work performed to enhance the knowledge and capacity of the personnel to perform some specific task, is called training.

According to one more concept, training is a continuous and well-arranged develop mental step, which enhances the knowledge and capacity of the personnel of every strata which helps in the development of the people and the company.

The training is provided to those personnel who are keen for it. In addition, it is provided to them who can put up with the hardships of the training. Thus the training facility should be extended to the personnel when they need it.

On-the-job training stands for the training a worker receives while performing his assigned responsibility. It is fit for every type of worker.

Under off-the-job training the trainees give up their determined work and receive full-time training to enhance their efficiency and working capacity.

In a big organisation each section is separate from the other, but in small organisations

the staff are sent out for training. A computer system cannot be supposed to be perfect, till that is wholly arranged.

System documentation includes collecting the records of a historical program, organising them and their maintenance.

Comments are a very useful part for the documentation of a program.

A good software system too is supported by system manual.