Model Based Testing For Software Development

Software testing involves execution of a software or service to check the quality of software product or service. It evaluates whether software components meet the given requirements or not. It also evaluates functionality of the software and time taken by it to run. [1] Software testing is very important for controlling the cost of the software project. Traditionally, we design and develop the program first. However, Test Driven Design (TDD) involves writing the test cases for new functions of a software first and then implementation of the code to pass these tests. This cycle of writing test cases and implementing the code is repeated till all the functionalities of the code are implemented. [2] Now, we

Test Plan: The software is tested using two levels of testing viz. black box testing and white box testing. White box testing could be carried out in three different phases viz. unit testing system/integration testing and validation testing. • Unit Testing: Unit testing, also known as Module Testing, focuses verification efforts on the module. The module is tested separately and this is carried out at the programming stage itself.Unit Test comprises of the set of tests performed by an individual programmer before integration of the unit into the system. Unit test focuses on the smallest unit of software design- the software component or module. Using component level design, important control paths are tested to uncover errors within the boundary of the module. Unit test is white box oriented and the step can be conducted in parallel for

In current era use of computers and machines are become vital in daily life. To operate these machines, we need to give them instruction of doing some work in specific format which is called software. So, when a problem arises or identified and one want a solution by using machines, need of new software arise. And thus, a software development life cycle starts. To make this life cycle more efficient and accurate, different SDLC model and software development modeling techniques exist. Here in this research paper we will discuss software modeling techniques. The term “model” is derived from the Latin word modulus, which means pattern, measure, and rule. While a modeling language is any artificial

It is typical for developers to spend around 40% of the total project time on testing. For life critical software (e.g. flight control, reactor monitoring), testing can cost 3 to 5 times as much as all other activities combined [1]. The destructive nature of testing requires that the developer discard preconceived notions of the correctness of his/her developed software. This means that testing must be done from an entirely different perspective from that of a developer. Testing must be done by considering the end user in mind, that how

Tests will be done from an end user's point of view, because the end user should accept the system. (This testing technique is sometimes also called Acceptance testing.)

Test-driven design: Developers identify the testing required before beginning to write the code for the system.

The research report I will be discussing in this assignment is about Test Driven Development (TDD). One of biggest and most important part of writing a software in any programming language. It is a way developers work to reduce time on debugging their software. TDD is one of the newest and most efficient methods for programmers and it is having an ongoing popularity growth every year. This assignment will be talking about, what TDD is? How it is implemented in Information Technology (IT) environment, why testing is important and how it can financially effect developers. We will have a closer look on the history side of TDD, how it was created, who created it and where did the TDD method pop up from. Also answer why use TDD when there are other methods out there? Every good thing or way have a bad side too, so does TDD and that will be covered later on this research report. We will compare TDD with some other methods and see which one stands out more and what makes them so different from each other.

The growing complexity of today’s software demands sophisticated software analysis tools and techniques to enable the development of robust, reliable and secure software. Moreover, increasing usage of third party libraries or plugins where source code is not readily available presents additional challenges to effective software testing [11]. The cost to fix bugs prior to releasing the software is often times much lower than the cost to fix bugs post release, especially in the case of security bugs. A number of automated software testing tools and techniques are commonly used in the industry. While automation significantly reduces the overhead of manual testing, finding deeply embedded security defects is not always automatable. Furthermore, automated software testing is prone to false positives or false negatives. Hence, there is a burgeoning need to advance the state of the art in software testing. In this context, Concolic testing is

Expansive code changes often require very expansive changes to the testing suite. Developers and testers need to write robust tests that will catch problematic changes in the code. However, this can be a daunting process when done completely manually, as is very common with many software projects. The void that mutation testing fulfills is the need for the tests themselves to be challenged and tested.

Manual testing is better than automated testing. All the above mentioned process models are widely used under manual testing, in which human beings perform this sort of testing. Automated testing is done by the computer which reduces the man power but not matter how fast a computer works it never thinks as human being ("Which is better," 2013). Even after a product is developed by using automation testing it cannot be completed without manual testing. A software test engineer must check the result of the automated test manually. Automated test stops even for simple unexpected pop-up dialogue which should be cleared by manual testing. Manual testing requires human judgement in which a human being executes the test cases in order to obtain the desired output. By using this one can find more bugs and fix them where automated testing does not find as many as manual testing. Layout, usability issues and trivial bugs can be identified by manual testing where automated testing cannot ("Which is better," 2013).

Software testing is intended to find errors and defects during the software product development. Therefore sufficient effort is required to ensure that system is in line with the requirements of the corresponding phase. Manual generation of test cases and applying them on the System under Test (SUT) is a laborious process and depends on skill and expertise of the tester performing the process of testing. A test Engineer has to keep track of several issues during testing like what test cases shall exercise the program, ensure maximum coveragability, determine whether adequate testing has been done, check whether sufficient test cases are available to meet the testing requirements on time, approaches and methods involved in testing, extent of automation in testing etc.. As the above process involves much human intervention, the efficacy of the process is not consistent.

Software and software-based systems testing is a technical discipline of systems engineering. The purpose of software and software-based systems testing is to help the development organization build quality into the software and system during the life cycle processes and to validate that the quality was achieved. The test process determines whether the products of a given life cycle activity conform to the requirements of that activity, and whether the product satisfies its intended use and user needs. This determination can include inspection, demonstration, analysis, and testing of software and software-based system products. Test activities are performed in parallel with software and system development, not just at the conclusion of the development effort.

Software testing is a typical procedure of testing in which we are comparing the actual outcome with the expected outcome. Testing of the software is being performed in order to check the correct functionality of the system or project. If the testing will not be performed properly then system may lead to catastrophic or improper results in that particular field. So it’s

As most of the test design effort for the AUT is developed in the scripting language, hence Automation resources should be proficient enough in the script development area. Apart from this when we expecting an extension to the automated test cases, then we can use this technique as data is external to the functional tests and modifications in the test scripts are easy in case of functionality change. Also, a key note to remember is that this is one of the tough approaches to maintain and continue for long term.

Software Engineering is systematic approach to development, operation, maintenance and retirement of any software. Development of any software follows a series of steps known as the ‘Software Development Cycle’ (SDLC). Software testing is an important part of SDLC. Software testing is the major quality control measure employed during the software development. Its basic objective is to detect errors in the