Essay On Requirement Based Testing

A Computer Software Engineer develops software systems to be used by their clients, such as a website used to sell the client’s products. Although software engineers spend the majority of their time programming and testing the software, a key component to the success of a software engineer is the ability to write a thorough Software Requirement Specification (SRS). A SRS documents the requirements and dependencies needed for the software, prior to beginning any programming. Therefore, a Software Engineer must po The SRS is so important because engineers can have a wide scope of clients that they regularly work with.

Requirement engineering is an integrated part of a software engineering and it is defined as a process concerned with goals, functions and constraints on software systems. Requirement engineering also concerned with identifying the stakeholders and their requirements as to how the software system should be, how it should behave and how it should evolve among similar software’s over the period.

The Verification and Validation, or V-model, Software Development Paradigm will be used to define the development life cycle of the software product. This paradigm was chosen because it allows us to test the software during each stage of the project in an inverse way. Also, because the validation and verification of

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

Secondly, creating tests that will ensure that the specified work product meets the specific requirements. Lastly, carry out the tests on the work product to ensure the specific requirements are achieved.

On the other hand, the quality characteristics which are must be maintained by the software are known as non-functional requirements. The functional requirements of the software are must be tested at the beginning phase but the security requirements, reliability and safety requirements (Non-functional requirements) are tested after the end of propose process.

Software quality assurance is a very important part of the software development and installation. “The main objective of quality assurance is to avoid problems or to detect them as soon as possible” (Shelly, Cashman & Rosenblatt, 2003, p. 410).

Programming testing is the methodology of executing a program or framework with the purpose of finding faults. Testing is a procedure of affirming that item is working as per the requirments, fulfilling the client needs. Programming testing gives a way to decrease errors, cut maintenance and general programming costs. Various programming testing strategies, techniques, and systems have developed in the course of the most recent couple of decades promising to improve programming quality. Programming testing is vital part in the product development life cycle. Two regular methodologies are white box testing and discovery testing. There are diverse scope measure for testability to the source code, for example, statement coverage, branch coverage and condition coverage. In the branch coverage we ensure that we execute each branch in any event once For conditional branches, this implies, we execute the TRUE branch in any event once and the FALSE branch in any event once conditions for conditional branches can be compound boolean expressions a compound boolean

In order to fully test that all the requirements of an application are met, there must be at least two test cases for each requirement: one positive test and one negative test. If a requirement has sub-requirements, each sub-requirement must have at least two test cases. Keeping track of the link between the requirement and the test is frequently done using a traceability matrix. Written test cases should include a description of the functionality to be tested, and the preparation required to ensure that the test can be conducted.”

Smith Systems Consulting has received some feedback and concerns that their processes and procedures are not sufficiently documented. This lack of professional documentation has caused some loss of potential contracts for the firm. The Learning Team Bravo has been given the assignment to define, develop, and propose standards for a software testing environment at Smith. This will be accomplished by defining the Smith engagement approach, introducing the way the firm works with clients and how projects are managed, defining the software development and quality assurance processes and procedures, describing in detail testing procedures to be exercised, describing the infrastructure including hardware and software capabilities that will make up the software testing environment, and by defining the format and requirements for development of formal program specification.

There are a number of reasons why software testing with real users ' views are important, even if the software is still being developed. One of the main reasons is that testing can bring value to the end product. Software testing demonstrates that defects are detected in the application that was developed. The process validates and verifies the software in order to ensure that the product meets the highest business and technical requirements that directed its design and development in the first place. The stakeholders involved in development or purchasing of software spend tremendous amount of resources in doing so and tend to want the software testing efforts to succeed and ensure that a quality product be produced. Hence, it is important for them to test the software in order to validate their implementations.

A penetration testing is a software-testing model that is intended mainly for implementing IT security mechanisms in software systems. The fundamental purpose of this study is to learn and uncover the primary aspects related to penetration testing components. To be more precise, the mechanism of penetration testing relies on obtaining access to system’s resources without the permission or knowledge of the users of the particular system. Several literatures and articles have been reviewed for understanding the recent trends, compare and contrast the different techniques and approaches applied in this specific area of software testing (Engebretson, Patrick). Apart from that, the paper also focuses on evaluating and analyzing the major strengths and weaknesses of those individual techniques. Unlike vulnerability scans, penetration testing are conducted less frequently (usually annually), which can further incorporate the tools or methods utilized in vulnerability scanning or other automated processes (Falkenberg, Andreas, et al). The underlying approach of penetration testing is to test the effectiveness of the security of the IT system architectures from the point of view or perspective of the attacker (may be a cracker or hacker).

The title of the paper upon which this assignment is based is The Meaning of Requirements. The paper was written by Michael A. Jackson, an independent computing consultant in London, England and visiting research professor at the Open University in the UK. He is credited with some 19 publications in the field of Requirements and Specifications alone. His fields of study also include Software Engineering and Development, Problem Frames, Information System Development and Sequential Program Design Information.

It is an easy and confident approach to identify test scenarios for complex business logic. We all know that business rules and validations take up major portion of the requirements given by the customers. While observing how these requirements are represented and communicated to the entire project team by Business Analyst’s or customers, we come to know that most of such business rules and logic are presented in a logical process flow diagram.

In software development, there are various types of methods that developers follow in order to produce valuable software. From the many types of methods that exist today, the industry standard that is mostly followed today is the software development lifecycle (SDLC). The SDLC is a process that software development companies utilize in order to design, develop and test software during production. Within the SDLC, there are different test models that developers can utilize based on their business and development requirements. Currently today, the most common models include the waterfall, iterative, spiral and V-model. Regardless of the model that a developer decides to utilize, all the phases will be the same, which would begin with the first step and that is the requirement gathering and analysis phase.