Usability Testing: Making Sure a Human Being Can Use the Software

The software development life cycle consists of Planning, Requirement analysis, Design & Development, Implementation, Testing & Integration, Evaluation, Release and support. The testing of software is one of the major steps in the development cycle. 

The testing is carried out from start of development to marketing of the software product. Different types of testing are done throughout the software life cycle. Everyone of these software tests are of equal importance to the software testing engineer. 

For the user, the most important type of testing other than security testing is usability testing.

Usability testing is a technique used to evaluate a product by testing it on users. 

This type of testing gives direct input on how real users use the system and hence is an irreplaceable usability practice. Usability testing focuses on measuring a human-made product's capacity to meet its intended purpose. 

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Examples of products that commonly benefit from usability testing are web sites or web applications, computer interfaces, documents, or devices. Usability testing is carried out in order to get an assurance from the user that the software is usable in the same manner it is intended to be used. 

Even if the software is functional testing services and performs well it does not mean that it is usable. For any software to be considered as usable, the person using the software under testing should not only be able to understand all the functions it can perform but also how to make it perform those functions. The person should also be able to understand the instructions given.

If an average person working on the software is able to follow the directions of using the software, run the software easily and make it perform as it was designed to perform then the software is usable. The jargon normally used in industry circles for this is “User friendly Interface”. 

User friendly interface indicates that the average user who has no knowledge of computers or software must be able to understand it well and use it. If the user finds it difficult in understanding instructions, moving through the menus or any other problems the same has to be rectified by the software programmers and testers. 

This testing will give a feedback on the ease and effectiveness of navigation, usefulness of content, effectiveness of presentation and task success rate. A usable program should be efficient, accurate, have a good recall value and has an emotional attachment to the user.

During the design and development of any software the designer is more concerned in bringing out software which is competitive with the companies’ software.

The emphasis at this point is on design/ competition and not the user. Because of this mental makeup they tend to design the software with considerable complexity which the user finds it difficult to understand. 

The designer is not concerned with the comfort level of the user at that stage. Typical examples of this are some of the popular computer games software wherein new version is more complex than the previous one. The most successful usability test is performed when the general public is using the software without any problems.

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The usability test performed in the presence of the developers has been one of the most successful methods for testing usability. 

In this, people perform certain tasks on command from developers and the developers observe how it responds under any given circumstance. 

The halfway testing theory, as adopted from Jakob Nielsen's research states that 95% of usability problems can be discovered using halfway testing technique. In this method, they ask at random 5 or 6 strangers who are “passing by” and ask them to perform certain specific tasks with the software. 

No in house technicians are involved in this testing. This is where the name "hallway testing" came from. In practice, it is established that most of the usability problems are identified and solved by this method.

Conclusion

Hope these are the important and valuable Mobile app Testing services which could be followed by any vendors. And your thoughts and suggestions are welcome through comments. And hereby the QA Services resides with perfect solutions and techniques desired by leading and innovative techniques.

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Unit Testing: Testing the Source Code Piece By Piece

One of the important stages in the software development life cycle, whether the software is for business or pleasure, is software testing. 

The software testing is useful in ensuring the correctness of all programs and performs all functions in the manner in which it is expected to do. 

There are a number of testing types used for testing the software starting from the development of the application until it reaches the marketing phase. Before it is released for production any software has to undergo series of testing such as black box/ white box/ gray box testing, unit/ integration/ system/ acceptance testing, functional testing/ non-functional testing and verification and validation. 

The unit testing indicated above is one of the important testing types and in this each individual unit of the application is validated for correct working. 

Software consists of many different applications which have to be tested independently for security, performance, functionality, usability testing, reliability, efficiency, portability and maintainability etc. A unit is the smallest part of the software application. 

Each of the modules of the software comprises of a number of individual units. There are a large number of such units in the application software. Offshore Software testing services can either be done for an individual unit or a group of units. In case there is a problem in the group testing, the testing has to be done at unit level. 

Unit testing is the method of making sure that each of the individual units is working properly in isolation. In this, testing is carried out on the minimal software component or module. They get integrated once the module testing is completed.

One of the many benefits of unit testing is the ability of the software programmer to change or improve the way the computer program is read without affecting the functionality/ performance of the program. 

Test cases are prepared for all the functions of the program and this facilitates easy identification and correction of the problems in case of changes made. It is possible to test the units first and eliminate all the bugs that appear during this testing.

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The entire integrated program can be tested after debugging all the unit modules. This makes the process easier, faster and efficient.

The test report based on unit testing is more or less similar to a written report on the system. This is very useful for the programmers because whenever they are interested in knowing the functionality a unit provides they only have to look at the documentation provided by the unit tester. 

Unit testing comprises of many unit test cases and these are critical to the unit's ultimate success. The test cases show characteristics that indicate negative behavior in the software or inappropriate functions.

Unit testing alone will not be sufficient for software approval; however, this combined with other testing types will be very effective. It is not possible to trap all errors in the software either by software testing or unit testing. 

Unit testing is useful in testing the functionality of the unit. It may not be possible to detect integration or performance problems during unit testing.

Unit testing can be carried out either manually or through automated tests. The primary objective of unit testing is to pinpoint the defects in the software, isolate that unit and correct it.

Conclusion

Hope these are the important and valuable Mobile app Testing services which could be followed by any vendors. And your thoughts and suggestions are welcome through comments. And hereby the QA Services resides with perfect solutions and techniques desired by leading and innovative techniques.

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Software testing automation

There has been considerable technological development and improvements in the last three decades. These developments have taken place after the introduction of personal computers and the related operating systems such as MS DOS and windows. 

Software such as system software, development software and application software has been developed since then and are in use. This software requires testing for error free operation. The technology is the only sector where testing is done repeatedly. 

Test automation services is one of the many testing processes that are performed nowadays. Software testing has become a necessity and not a luxury in the present days. The technology has grown many-fold in the past few years and this has resulted in the invention of many new equipments as well as tools. 

These tools have proved their worth in every walk of our lives. Computer is one such tool which is the most popular one in the technology sector.

In the development of any software product, the software testing automation process is an integral part in the process. Many of the software developed are used in the technological equipments which are being used at home/office regularly. 

We always thrive for newer equipments with advanced technology which have more advanced features. Such equipments increase productivity and efficiency of individuals and organizations. Nowadays more companies are involved in developing software products for manufactured equipments. 

Offshore software testing and quality assurance services ensures that the software is error free for use on such equipments. The net result of all these actions is a good quality software product and also the final product in which this software is used. The software testing process finally gives all of us a marketable attractive new product.

Software testing is an integral, costly, and time-consuming activity in the software development life cycle. As is true for software development in general, reuse of common artifacts can provide a significant gain in productivity. 

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In addition, because testing involves running the system being tested under a variety of configurations and circumstances, automation of execution-related activities offers another potential source of savings in the testing process. 

This is the process of software testing automation. If the consumer is allowed the option of reprocessing as well as of reusing the features of a particular software product both the manufacturer and consumer tend to benefit by this.

Read more about : Split Testing

It is advisable to build the software system which can be reprocessed by the consumer at any time for any purpose and the process of software automation helps in this.

One of the components of a software testing process is the software testing automation. The development of software for various applications is constantly done by software houses. Different vendors develop software for the same application which necessarily means acute competition for the same user. 

In a competitive environment like this, it becomes a question of survival of the fittest. Your product must be the best in quality to attract consideration. Software testing helps in bringing your product to top quality. 

The software testing automation process is also expected to meet the expectations and requirements of the target audience. Because of the innumerable number of software products that are being developed day in day out, the options available for the target audience are large and software testing gives your product an edge over others. One can find further information on software testing automation by browsing the internet.

Conclusion

Hope these are the important and valuable Mobile app Testing services which could be followed by any vendors. And your thoughts and suggestions are welcome through comments. And hereby the QA Services resides with perfect solutions and techniques desired by leading and innovative techniques.

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Software Integration Testing: Complex but Essential

The integration testing is one of the important types of software testing in the software development cycle. Integration testing is also known as Integration and Testing (I&T). This is the most difficult and expensive of all types of software testing.

In integration testing, input modules that have been unit tested are grouped into larger module. Tests like performance testing services can be done at any stage of the development.

However, integration testing has to follow a certain schedule in order to be effective. It is carried out after unit testing but before system testing. Tests as defined in an integration test plan are applied to the integrated module and deliver an integrated module for system testing.

Any large system consists of smaller sub-systems and the subsystem consists of components. Initially the components are tested independently and made bug free. Then this process is repeated for a group of components or subsystem and then to the integrated system.

The objective of Integration testing is to make sure that the interaction of two or more components produces results that satisfy functional requirement.

The defects in the interface of the components and also their interaction will be observed during the integration testing. The integration testing plan comes from the physical makeup of the system components and these were identified and designed earlier in the development stage.

The task of Integration testing is centered on the system functions. These functions are individual program modules or individual units that when assembled together make a final integrated software. These units have been tested in the unit testing stage and all bugs in individual unit software should have been removed at that stage.

These units should perform satisfactorily as individual entities. However, there is no guarantee that the integrated software will function satisfactorily since it has passed through the unit stage. Any conflict between various modules has to be resolved at the integrated testing stage.

The purpose of integration testing is to verify functional testing, performance and reliability requirements placed on major design modules. These modules are integrated or assembled from a group of units as a major module.

Test cases are constructed to test that all components within assemblages or major design modules interact correctly. The whole concept is similar to a "building block" approach, in which verified assemblages are added to a verified base which is then used to support the integration testing of further assemblages.

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The types of Integration testing are big bang, bottom-up, top-down and hybrid. Brief details on this are as given below.

Big bang - In this type of testing, all/ most of the developed modules are integrated to form a complete/ major software system as the case may be and then used for integration testing. The Big Bang method saves a lot of time in the integration testing process and also cost effective. However, this process warrants proper recording of test cases and also their results in the absence of which the process of integration becomes very difficult.

Bottoms-up – In this the testing is carried out starting from the lowest level software modules or units of the system. Once these are tested and debugged they are integrated together and tested as an integrated unit. A number of such integrated units after testing are integrated together to form the higher level integrated module and again tested for errors. This process is continued until the whole application is tested and debugged. For this approach to be effective all units at that level have to be ready before testing.

Top-down – This is exactly opposite to bottoms-up approach. Top down integration testing is an incremental integration testing technique which begins by testing the top level module and progressively adds in lower level module one by one.

Hybrid – Both Top-down and bottom-up approaches have their own advantages and disadvantages. In top-down integration testing it is very easy to follow the top-down software development process whereas in bottom-up testing the code used is tested repetitively. The hybrid integration testing takes advantage of the benefits of both top-down and bottom-up testing.

Conclusion

Hope these are the important and valuable Software Testing services which could be followed by any vendors. And your thoughts and suggestions are welcome through comments. And hereby the QA Services resides with perfect solutions and techniques desired by leading and innovative techniques.

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White Box Testing: Testing With a View of the Software Code

In the software development life cycle software testing services is one of the main processes involved. The objective of software testing is to find out the errors and mistakes either in the software or in the coding so that the final product before marketing is without any flaws. 

The execution of QA Services is carried out at various levels and at each of these levels different software testing types are used. These tests check for the various parameters of the software such as functionality, correctness, completeness, maintainability, efficiency, capability, portability and usability. 

Such tests give the developer and customer confidence in the QA Services of the product. There are many ways in which software testing types can be categorized. Categorization of testing based on the knowledge of system is white box testing, gray box testing and black box testing. 

Each of these tests have their own separate purpose, with black box testing being used for the exterior phase of the software, white box testing for the interior and gray box software testing a combination of both.

White box testing strategy deals with the internal logic and structure of the code. This strategy is also known as glass box testing, structural testing, open box testing and clear box testing. The tests written based on the white box testing strategy incorporate coverage of the code written, branches, paths, statements and internal logic of the code etc.

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Superficial knowledge on software is not sufficient for doing this test. The engineer must have profound knowledge of the internal working of software in order to select the test data and also know the tests to perform. 

He must have studied the software thoroughly and should know the functional testing services capabilities of the software without which the tests will not be accurate. If he has programming knowledge, then only then he can analyze why the program is doing something that it shouldn't be doing. 

In case any part of the test is omitted the test will be unsuccessful and the program will not function.

The process of white box testing includes software testing types such as unit testing, static and dynamic analysis, statement coverage, branch coverage, security testing and mutation testing and each of these tests have their own purpose.

Unit testing is the method of testing to make sure that smallest unit of your software is working properly in isolation. In this, testing is carried out on the minimal software component or module. They get integrated once the module testing is completed. 

This testing starts from the beginning of development of software. The unit testing is normally combined with scaffolding software developed by the software implementation team. In this one unit has to be built and tested before taking up another one. 

Static testing is also called as dry run testing. This is a form of software testing where the actual program or application is not used and analysis of a program is carried out without executing the program. In this testing method the programmers manually read their own code to find any errors in the software. 

This is not a detailed test and it checks only for the sanity of the code, document and algorithm. Dynamic analysis involves first reading the code to see if it is defective in any way and then running the code to determine the final output.

Statement coverage or Code coverage describes the degree to which the source code of a program has been tested. It is a form of testing that inspects the code directly and is therefore a form of white box testing. 

In this each of the code in the program is run one after the other in the order it is written and executed. Any side effects or errors are observed and corrected. Branch coverage helps the engineer to check the code logic while branching. 

No application can be written with single continuous code and the coverage helps in monitoring the changes in functionality when the code branches off.

Nowadays, software security has gained enormous importance in the world of software development. Many software testing companies have computerized scientific, industrial and financial areas of operation and data is passed through internet either for communication or research or money transfer and all these operations are very critical and if not protected this will be detrimental to the profitability of the organization. 

The internet software testing service provider must ensure that the information and network are secured from the intruders. The software security has to be inbuilt in the system from the day of starting the development and the matter has to be viewed very seriously. As more and more additions are made to the software there is further need for security. 

All these mean that the security testing has to be done carefully and diligently when new software is developed. Nowadays one comes across the misdeeds of hackers and crackers who breach the security of many organizations thereby getting access to the internals of organization data including finances. 

The security testing services has to be done by a qualified technician who can detect errors and modify the code suitably. The purpose of mutation test is to find the code that is modified and also the code that causes efficient functioning of the application.

Quality Assurance Software Testing

Quality assurance software testing services is an essential part of any software development project. It is the responsibility of software developers and testers to make sure that the newly developed software programs are reliable, consistent, functional, accurate, secured, compatible and accurate. 

According to research, nearly three fourth of software projects are either late, or are over budget or are cancelled before being completed. Software testing is the process of measuring the quality of a developed computer software program. The software should be complete, correct and secured, portable, efficient, maintained, reliable and usable. Testing is a process intended to find errors in a newly designed software program. People who are engaged in test automation reduce costs, relieve resources and achieve the product goals of their group.

With increasing number of software programs being released annually, there is need for software testing and every aspect of the software program must be validated and good-quality. In automated software testing methods, tests are easy to generate, uphold and recycle. Quality assurance services software testing confronts the assumptions, uncertainties and risks involved in a software program. A software test looks if there are any defects in the software program and if the software program is working as expected.

Assurance software testing should be started at an early stage of software development. With each implementation, the software program should be tested, and as a result, the program is ready for release much earlier.

Each software testing method has a different method of testing and is undergone with a different objective. They can look for errors, quality, safety, faultlessness, protection, potentiality, maintainability and other aspects of a software program. A software program is incomplete without proper testing.

Before testing a software program, a test plan is prepared which includes the tools to be used, various inputs and the expected results. Code review is also a part of Assurance software testing and is done by a programmer who has the basic knowledge about coding. Code review contains the comments before a code block begins and the proper arrangement of coding. 

A favourable code in a review of software testing will ensure that the software programme is easily maintainable.

Assurance software testing service providers is done by running a test through the system under various circumstances and configurations. It validates the behaviour of the program being tested. First of all, the features of the program to be tested are listed. Then the test programs that will be needed to be run are planned, created and modified. Then these tests are executed to the program. 

The results are then evaluated and reviewed. Reuse of the tests improves its development and automation aims at the execution portion of the test. Some components of software testing are remote monitoring, resource management, data management, synchronization, file transfer, logging, etc.

Over the last two decades, software development industry has been under pressure to develop more and more high-quality software programs. The tester should know which automated tools are available for testing, and how to choose the right ones for the current project.

Conclusion

Hope these are the important and valuable software testing services which could be followed by any vendors. And your thoughts and suggestions are welcome through comments. And hereby the Qa Services resides with perfect solutions and techniques desired by leading and innovative techniques.

Thanks and Regards,

Zeppelin

Indium Software- software testing companies

Ensure The Efficiency Of Software By Software Testing

Software testing is a process of testing the software that has been developed before launching it in the market. Testing becomes essential in order to give a final approval to the software. If there is even a slight fault in the programming, then the whole software is considered as failed. Software testing is not done to fix up some left out program in the software or correct some data in it. Instead, it is done to check whether it is a success or a failure. 

In any other hardware designing, the faults or the deficiencies can be improved or a new part can be installed but the faults and deficiencies of the software gets embedded in it and becomes latent only when it is activated by the user. So, testing is an essential requirement for any software.

Computer Software is a set of computer programs that are used to run the computer system. There have to be corrected and modified before final approval. It is not like a hardware that gets corroded or breaks or cracks while adjusting or packing and can be fixed or replaced.

So, software testing enables you to check the technical requirements that have been of the software. Software testing gives a sense of completion and perfection. Summing it up, you can say that software testing companies can be done for evaluating or analyzing the capacity of the software to execute its intended function. 

If the software is launched without being tested, it will certainly affect the company reputation in the information technology market and in such cases, nothing gets retrieved since there is great competition in the IT field. There are several companies who are designing and manufacturing the latest software technology to beat the older ones and to bring about more development in each and every sphere of human life.

Software is tested on the basis of technical requirements too described under ISO standard ISO 9126 like capability, reliability, efficiency, portability, maintainability, compatibility and usability.

The main aim of software testing services is to find software bugs as soon as possible and debug the software. Software bug is a mistake or fault in a computer program that stops the software from executing its projected function. These bugs arise due to the mistakes in source code or design of the software program. 

Source code is a set of files that converts the form of human readable data in to computer- programming language. A report is made depicting the details of the bugs present in the software. If there are numerous bugs in a program then it is called buggy. It is really important to check out and correct these bugs before the launch of the software since once activated in the user computer, they infect the programming of the whole system.

There are various types of software testing. Some of the important ones are enlisted below:

1. Black box testing
2. White box testing
3. Unit testing
4. Incremental integration testing
5. Integration testing
6. Functional testing
7. System testing
8. End-to-end software testing
9. Sanity testing
10. Compatibility testing
11. Comparison testing
12. Alpha testing
13. Beta testing

Conclusion

Hope these are the important and valuable software testing services which could be followed by any vendors. And your thoughts and suggestions are welcome through comments. And hereby the Qa Services resides with perfect solutions and techniques desired by leading and innovative techniques.

Thanks and Regards,

Zeppelin

Software testing Company