Software Testing : Testing And Testing

One of the project problems mentioned by Brooks Jr. in Chapter 12 of his book “The Mythical Man Month” is the problem with program maintenance. According to him fixing a bug has around 20 to 50% chances of introducing another one. As explanation he shows two reasons: first one is that in most of the projects the structure of documentation in not clear, precise and does not describe all dependencies that exist in the system and second is that the programmer who is repairing the system is typically not the same as the one who composed the code at development (Brooks Jr., 1995). So in order one project not to fail there should be more system testing per statement written then in the other cases. Brooks suggest that after fixing each bug an entire bank of previous test cases should be run against the system (Brooks Jr., 1995). But

State why it is a good idea to test a module in isolation from other modules and why different

“By "building in" the quality from the very beginning of the software development life cycle, and by emphasizing the need for static and dynamic test methods throughout the life cycle, the cost of rework can be significantly reduced”

In the late 1990’s, there are several methodologies which attract public attention.These methodologies underlined importance of collaboration between the development team and business stakeholders; frequent delivery of business value, tight, self-organizing teams; and smart ways to craft, confirm, and deliver code. The term "Agile" was applied to this collection of methodologies in early 2001 when 17 software development practitioners gathered in Snowbird, Utah to discuss their shared ideas and various approaches to software development. This joint collection of values and principles was expressed in the manifesto of agile and the corresponding twelve principle.Software testing is the one most important attribute for software

Defect correction is the remediation of a software condition or result that contradicts or does not meet the needs of the software requirements (Defect, 2010). The agile test model is an automated and efficient process for detecting requirements and functionality variations (Tarhan & Yilmaz, 2014). Also, unit testing activities are performed earlier within the life cycle and defects are identified sooner (Tarhan & Yilmaz, 2014). The early identification of defects minimizes the costs for defect correction or rework (Tarhan & Yilmaz, 2014). The accelerated timeframe allows teams to remediate defects before functionalities are demonstrated or sent to the customer for user acceptance testing (Tarhan & Yilmaz, 2014). Without incremental methods, as evident in the waterfall model, identified defects are unknown until post customer delivery (Tarhan & Yilmaz, 2014). As a result, the estimated costs for software development are exceeded to remedy code defects or cover the expense of rework for issues that customers identify post implementation (Tarhan & Yilmaz, 2014). Finally, post development defects may result in the loss of customers given the impact and severity (Tarhan & Yilmaz, 2014). An empirical study of development models revealed that agile model performance was superior to that of waterfall with respect to defect detection and cost control (Tarhan & Yilmaz, 2014).

Concordion tests are written in HTML and then instrumented with special attributes that Concordion interprets to execute the test. Rather than forcing product owners to specify requirements in a specially structured language, Concordion lets you write them in normal language using paragraphs, tables and proper punctuation [7]. This makes the specifications much more natural to read and write, and helps everyone to understand and agree about what a feature is supposed to do. The HTML files are typically stored with the source code, which has the benefit that they can be under the same version control system as the rest of the code. Concordion enriches agile processes and has been successfully applied in industrial context.

The motivation behind this report is to examine about how testing is done in object oriented environment. Object oriented programs have an alternate behavior and structure when contrasted with programs created utilizing technical language. It takes after an information driven methodology and it is depends on ladder of objects and classes. Classes are only a gathering of objects that inform properties and connections and objects are elements that stores information send and get messages. Re-usability can be picked up in object oriented programming by making utilization of features which is polymorphism, inheritance, encapsulation and abstraction. Issues like maintenance and reuse are explained utilizing OO approach. Although the development is done by people, testing needs to be carried out to uncover mistakes. As classes team up with one another, OO framework needs to be tested at various levels. Testing starts by investigating the OOA and OOD models. The correctness and consistency of the models are analyzed utilizing formal technical reviews and they are examined in this report. Different types of diagrams, for example, control flow graph, state transition diagram and class diagram are utilized by the test models. Different testing techniques, for example, fault based testing, scenario based testing and state based testing strategies are explained in detail. Testing techniques, for example, class test which is performed once the code is composed,

Insightfully mapping out the technological advancements in software development from its beginnings somewhere in the late 1940’s to the current modern age. There is more than enough compelling evidence that software technology has laid a strong impact on all economic and social aspects of our modern day living. Thus, a systematic approach towards high quality software development is required due to an increasingly quality oriented market and competitive business world.

There are many existing tools like Quality Center which is licensed by HP. All the stages are designed and implemented manually from requirement analysis, designing test plan, developing test scenarios, writing test cases, executing the test cases, defect reporting etc. The problems with manual testing are time consuming and non-reusable and no scripting facility, manual effort required and few errors are uncovered [1]. Manual Testing is preferred to review the application requirements, and to create the High Level design Documents and Low level design Documents [3].

Unit testing involves the design of test cases that validate or verify the proper functioning of the internal program logic, and that program input produces required outputs. All decision control blocks and internal code flow should be checked. It is the testing of individual software units of the application. It is done after the completion of an individual unit before integration. Basic tests at component level are performed and specific business process, application, and/or system configuration are tested.

Over the past few decades, online industry has developed in leaps and bounds. Nowadays, testing is playing an instrumental role in all software development processes. A good testing program can help to prevent software defects, reduce the number of bugs, errors, and improve the overall software quality. Besides, when it comes to testing online, it has been withdrawing more and more attention from any individuals or organizations who construct and operate websites, such as e-commerce websites, information, customer service websites, blog and so on. They deeply understand that an optimized website can lead their businesses to a higher position in the competitive world. On the other hand, a bad website experience might bring significant

Unit testing focuses on the smallest unit of software design i.e. the smallest component or module. Important control paths are tested to uncover errors within the boundary of the module. It focuses on the internal processing logic and data structures within the boundaries of a component. This type of testing can be conducted in parallel for multiple components.

There are two fundamental purposes of testing they are verifying procurement specifications and managing risk. First, testing is about verifying that what was specified is what was delivered it verifies that the product meets the functional, performance, design, and implementation requirements

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

Software quality control (SQL), which is a set of activities, encourages ensuring the highest quality in software products. It contains activities relating to reviews such as requirement review, design review, code review and also activities relating to testing such as unit testing, integration testing, system testing and acceptance testing. Main purpose of SQL is to ensure that the developing software meet all the specifications. At this stage, our group had reviewed software requirements and making sure to achieve all by the time of software development sprint end. Other reviews such as design, codes are going to be well analyzed in later sprint and all the testing types are going to be executed in order to ensure that all the solutions are well tested. Software testing will be done during every development processes in order to assess features and quality of the software. Different