Coupling and cohesion in software engineering ppt erogonphil. Characteristics of a software software should achieve a good quality in design and meet all the specifications of the customer. Learn about software testing as well as related software testing course software testing course is nothing but the introduction of the working of software testing basics to software testing advanced which includes the creation of test plans and its execution. Black box testing or functional testing is a method which is used to examine software functionality without knowing its internal code structure. This paper discusses different software strategies such as unit testing, integration testing, validation testing and techniques such as white box and black box testing for conventional and object oriented software development. For slides, see lecture 20 lecture 24, legal issues powerpoint html lecture 25, management iii. Performance testing this test proves how efficient the software is. Chapter software testing strategies ppt download slideplayer. Condition testing is performed using different strategies, namely, branch testing, domain testing, and branch and relational operator testing. This tutorial will give you a basic understanding on software. Generate high quality test cases, perform effective tests, and issuecorrect and helpful problem reports. Chapter 21 project management concepts updated with slides on group dynamics chapter 22 process and project metrics. System testing is the process of testing an integrated system to verify that it meets specified requirements. Software testing strategies powerpoint presentation.
Testing methodologies are the methods or approaches to testing that includes from unit testing through system testing. Objectives, black box and white box testing, various testing strategies, art of debugging. Software engineering slide 5 component testing component or unit testing is the process of testing individual components in isolation. Testing techniques and strategies software testing. Objectives uncover as many as errors or bugs as possible in a givenproduct. It can be applied to all software testing levels but is mostly employed for the higher level acceptance and system related ones. It tests the effectiveness and average time taken by the software to do desired task. Software development and testing methodologies with pros and. System testing system testing is defined as testing the behavior of a systemsoftware as per software requirement specification testing the fully integrated applications including external peripherals in order to check how components. The case for agile testing by applying principles of agile software development, qa teams can help. Similarly, if it is transaction intensive then the strategy should be such that it is able to check the flow of all the transactions. Managing people powerpoint html lecture 26, risks in software engineering powerpoint html lecture 27, software engineering as engineering powerpoint html. Introduction a strategy for software testing integrates the design of software test cases into a wellplanned series of steps that result in successful development of.
Software testing strategies a strategic approach to testing test. The commonly used software testing strategies are listed below. Software web brower, os, or other softwa program on windows vista uncommon inppguts. Mar 18, 2017 software specification or requirements engineering is the process of understanding and defining what services are required and identifying the constraints on these services. This document is highly rated by students and has been viewed 194 times. Beta testing is a formal type of software testing which is carried out by the customer. A software or qa strategy is an outline describing the software development cycle testing approach. Some times we are thinking why we need a software testing. Dont wait to test once youre ready to release youll likely miss some of the most important parts of software testing, and your application will suffer.
Validate the quality of a software testing using the minimum costand efforts. Testing consumes at least half of the time and work required to produce a functional program. The software is compiled as product and then it is tested as a whole. Software development and testing methodologies with pros. A test strategy is an outline that describes the testing approach of the software development cycle. In this white paper, we provide an overview of how agile testing works, why it is important, and the challenges it poses. If so, share your ppt presentation slides online with.
Software testing is an investigation conducted to provide stakeholders with information about the quality of the product or service under test. Software testing methodologies textbook pdf download b. Introduction it is the process used to identify the correctness,completeness and quality of developed computersoftware. Stress testing involves testing an application under extreme workloads to see how it handles high traffic or data processing. Oct 31, 20 some times we are thinking why we need a software testing.
This uses formal and informal techniques to access and prioritize risks that arise during software testing. Understanding diversification in software engineering. Diversification of problemsolving strategies in software engineering. Testing strategies testing tactics strategies issues for conventional and object oriented softwareverification and. Saarland university y from pressman, software engineering a practitioner.
Software testing is the design and implementation of a special kind of software system. Ppt chapter eighteen software testing strategies powerpoint. Winner of the standing ovation award for best powerpoint templates from presentations magazine. The strategies describe ways of mitigating product risks of stakeholders in the test level, the kind of testing to be performed and which entry and exit criteria would apply. Apr 28, 2020 software testing strategies powerpoint presentation, engineering notes edurev is made by best teachers of. In the literature of software engineering various testing strategies to implement the testing are defined.
Software testing methodologies are the various strategies or approaches used to test an application to ensure it behaves and looks as expected. Software specification or requirements engineering is the process of understanding and defining what services are required and identifying the constraints on these services. The authors reserve the on all slides, but grant permission for them to be used for educational purposes. This document is highly rated by students and has been viewed 330 times. The textbook and the accompanying materials posted on this website are freely available for fair use. It is performed in the real environment before releasing the product to the market for the actual endusers. Testing strategies software engineering andreas zeller. Chapter software testing strategies a strategic approach to testing test strategies for conventional software test strategies for objectoriented software. Apr 29, 2020 automation testing means using an automation tool to execute your test case suite. Demonstrate a given software product matching its requirementspecifications. Sommerville, power point slides for software engineering.
Project management powerpoint presentation, software. Driving forces of diversity in development strategies. Strategic approach testing is a set of activities that can be planned in advance and. Software engineering is an engineering branch associated with development of software product using welldefined scientific principles, methods and procedures. Software engineering, 6th edition, ian sommerville, addisonwesley, isbn 0209815x. B we can design, method tests, only if we take a class into consideration. Designing effective test cases see software testing techniques is important, but. Software design is an iterative process through which requirements are translated into the blueprint for building the software. The purpose of a test strategy is to provide a rational deduction from organizational, highlevel objectives to actual test activities to meet those objectives from a quality assurance perspective. Usually the responsibility of the component developer except sometimes for critical systems tests are derived from the developers experience.
This testing will determine if the results generated by information systems and their components are accurate and that the system performs according to specifications. Automation testing means using an automation tool to execute your test case suite. Characteristics of a software software should achieve a good quality in design and meet all the specifications of. The design and architecture of the software are also useful in choosing testing strategy. Software engineering lecture notes on unit 4 testing. Beta testing is carried out to ensure that there are no major failures in the software or product and it satisfies the business requirements from an. So, we can define software engineering as an engineering branch associated with the development of software product using welldefined scientific principles, methods and procedures. System testing the software and other system elements are tested as a whole 8 system engineering defines role of software and leads to software requirement analysis where information domain, function, behavior, constraints, validation criteria for software are established. Multilevel testing once we have code, we can perform three types of tests black box testing does the system behave as predicted by its speci. It is performed by the software developer or engineer during the construction phase of the software development lifecycle.
Software testing quality assurance strategies tatvasoft. In software development, coupling refers to the degree to which software components are dependant upon each other. Introduction to software engineeringtesting wikibooks. Software testing pragmatic software testing effective methods for software testing the art of software testing, although over three decades old, remains a classic that is must reading for every. The automation software can also enter test data into the system under test, compare expected and actual results and generate detailed test. The outcome of software engineering is an efficient and reliable software product. Costs of performance testing are usually more than made up for with improved customer satisfaction, loyalty, and retention. Permission to reproduce or copy all or parts of this material for nonprofit use is granted on the condition that the author and source are credited. Software testing process presentation ppt just web world. Software project management has wider scope than software engineering process as it involves. Load testing checks the applications ability to perform under anticipated user loads. Componentbased software engineering ppt chapter 10. Ppt software engineering software testing strategies. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that.
Nov 30, 2000 for slides, see lecture 20 lecture 24, legal issues powerpoint html lecture 25, management iii. Application of engineering for development of software is known as software engineering. Software engineering methods rely on a set of basic principles that govern each area of the technology and include modeling activities and other descriptive techniques. Software testing strategies types of software testing. Software testing is simply the process of checking the results or verify the result whether it is matching to the expected. This can be accomplished using one or more of the following tests. In this we just focus on required input and output without focusing on internal working. Software testing ppt software testing unit testing.
A number of software testing strategies are developed in the testing process. Investing in diversification, factors that affect interdisciplinary. Apr 16, 2020 beta testing is a formal type of software testing which is carried out by the customer. Virtually every book on software testing discusses strategies along with methods for test case design. Apr 29, 2020 in software engineering, performance testing is necessary before marketing any software product. To catch the defects that occurs at the early stage of software development.
On the contrary, manual testing is performed by a human sitting in front of a computer carefully executing the test steps. Unit testing is a software development process that involves synchronized application of a broad spectrum of defect prevention and detection strategies in order to reduce software development risks, time, and costs. Functionality testing tests all functionalities of the software against the requirement. Branch testing executes each branch like if statement present in the module of a program at least. Testing is a set of activities which are decided in advance i. Bca course syllabus software engineering subject sikkim.
System testing the software and other system elements are tested as a whole 8 system engineering defines role of software and leads to software requirement analysis where information domain, function, behavior, constraints, validation criteria for software are. These levels of testing in software engineering show that testing needs to be a part of the entire software development process. An empirical study of bug characteristics in modern open source software. Software engineering software process activities part 3.
In this software is tested such that it works fine for different operating system. It is the systematic, innovative technique and cost effective approach to. Scribd is the worlds largest social reading and publishing site. Presented by saptarshi dutta chowdhurymca, heritage institute of technology 2. It is covered under the black box testing technique. These slides are available for instructors, students, and readers of the book. This course is intended to provide the students with an overall view over software engineering discipline and with insight into the processes of software development. These encompass everything from front to backend testing, including unit and system testing. Software components that have been translated into code are integrated into a build. Course informationsyllabus pdf guidelines for all assignments pdf book. Ppt for introduction to software testing, edition 2, ammann.
Ppt software engineering roger s pressman, phd powerpoint. Testing strategies testing tactics strategies issues for conventional and object oriented softwareverification and validation validation testing system testing art of debugging. Software testing strategies ppt download slideplayer. A build includes all data files, libraries, reusable modules, and engineered components that are required to implement one or more product functions. Basic unit for testing inheritance and testing the class is the smallest unit for testing.
Software testing also provides an objective, independent view of the software to allow the business to appreciate and understand the risks of software implementation. Ppt for introduction to software testing, edition 2. Software engineering tools provide automated or semiautomated support for the. Software evolution critical systems validation metrics for process, project and productquality management process improvement risk management. Unit testing unit testing is a testing in which the individual unit of the software are tested in isolation from other parts of a program. Software engineering roger s pressman, phd is the property of its rightful owner. A designed test will be written and approved prior to.
Software quality guidelines a design is generated using the recognizable architectural styles and compose a good design characteristic of components and it is implemented in evolutionary manner for testing. Nov 19, 20 why system testing is required it is the first level of software testing where the application is tested as a whole it is done to verify, validate the functional, non functional, business, technical requirements of the software it also includes the verification and validation of software application architecture. Coupling is the act of joining two things together. Testing strategies is an overview of the key issues that occur in the testing process and is to be taken into consideration by the project manager, a team of developers and testers. A software testing strategy is an outline which describes the software development cycle testing approach. These slides are designed to accompany software engineering. Oct 14, 2015 project management powerpoint presentation, software engineering, notes edurev notes for is made by best teachers who have written some of the best books of. The objective is to identify performance bottlenecks before the software application goes live. Testing is executing a system in order to identify any gaps, errors, or missing requirements in contrary to the actual requirements. Levels of testing in software engineering testlodge blog. Testing is the process of evaluating a system or its component s with the intent to find whether it satisfies the specified requirements or not. Branch testing executes each branch like if statement present in the module of a program at least once to detect all the errors present in the branch. Ppt on object oriented testing powerpoint presentations.
It takes a complete overview of requirements, design, and implementation of objects to determine the motive of testing. Software testing strategy integration of software test case design methods into a wellplanned series of steps successful software construction provides a road. A series of tests is designed to expose errors that will keep the build. The approach will be to have the databases reside on a single computer in the qa lab and have multiple users access the same database through the use of other computers in the qa lab. Pearson offers special pricing when you package your text with other student resources. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Chapter 17 software testing department of software engineering. The xxxx software will need to have some load testing done to validate the conversion to blah blah blah. Software engineering is an engineering branch associated with the development of software product using welldefined scientific principles, methods and procedures. Testing techniques and strategies free download as powerpoint presentation.
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