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End-to-End TestingEnd-to-End testing is a software testing approach that verifies the complete software, including its interaction with external interfaces, from beginning to end. End-to-end testing examines the entire software for dependencies, data integrity, and connectivity with other systems, interfaces, and databases in order to simulate a complete production environment.It checks batch/data processing from various upstream/downstream systems in addition to the software system. As a result, the term "End-to- End" was coined. End-to-end testing is normally done after functional and system testing has been completed. It simulates real-time conditions by using real-world data and a test environment. Chain testing is another ... Read More
Testing is the process of running a software and looking for flaws. Our program must be error-free in order to work effectively. If the testing is completed successfully, the program will be free of any faults.Testing PrinciplesAll tests must satisfy the customer's needs.To make our software testing more efficient, we should use a third party.It is impossible to do exhaustive testing. We need the optimum quantity of testing depending on the application's risk assessment.All tests that will be undertaken should be prepared before they are carried out.It adheres to the Pareto rule (80/20 rule), which claims that 80% of software ... Read More
A bug is the result/consequence of a code error.Software Testing DefectA software defect is a difference or divergence in the software program from the end user's or original business requirements. A software defect is a coding fault that results in inaccurate or unexpected outputs from a software program that does not satisfy its intended purpose. During the execution of test cases, testers may stumble across such flaws.These two names have a very thin line of distinction in the industry; both are flaws that must be rectified, and some testing teams use them interchangeably.When testers run the test cases, they may ... Read More
A software cost estimating methodology is an indirect metric used by software professionals to estimate project costs. They're utilized for a variety of things. It contains the following items −Budgeting − The most desired capability is for the overall estimate to be correct. As a result, the first focus is on estimating the software product's budget.Analysis of tradeoffs and risks − The ability to expose the cost and schedule sensitivity of software project choices is a significant added feature (scoping, staffing, tools, reuse, etc.).Controlling and planning the project − Another option is to break down costs and schedules by component, ... Read More
When it comes to software development, there are a number of phases or development procedures that must be followed in order to produce a highquality product. All of these processes fall within the SDLC (Software Development Life Cycle) framework, which serves as a software development framework that the software developer/engineer team follows in order to create a high-quality software product. Software Testing is an essential step in the SDLC that is carried out to detect and resolve issues as well as to create a well-performing decent software product.There are several forms of software testing and software testing metrics available, all ... Read More
Re-TestingRe-Testing is the process of checking individual test cases that have been identified as having a defect or bugs in the final execution. In most cases, testers discover these flaws while testing the software program and report them to the developers for correction. The developers then repair the bug(s) and return it to the testers for review. Retesting is the name for this continual procedure.Example − Assume that Build 1.0 has been released. The Test Team discovered certain issues (for example, Defect Id 1.0.1 and Defect Id 1.0.2) when testing Build 1.0 and reported them. The test team checks for ... Read More
In this article, we will compare the properties of the agile paradigm with those of other models.Waterfall Model vs. the Agile ModelWhat is Waterfall methodology, and how does it work?The Waterfall Model is also known as the Liner Sequential Life Cycle Model. Because the Waterfall Model is followed in a sequential sequence, the project development team will only go on to the next phase of development or testing if the previous step has been successfully completed.What is the Agile approach, and how does it work?Agile methodology is a concept that aids in the software development process by allowing for continuous ... Read More
A process can create several new processes through creating process system calls during the process execution. Creating a process we call it the parent process and the new process is a child process.Every new process creates another process forming a tree-like structure. It can be identified with a unique process identifier that usually represents it as pid which is typically an integer number. Every process needs some resources like CPU time, memory, file, I/O devices to accomplish.Whenever a process creates a sub process, and may be each sub process is able to obtain its resources directly from the operating system ... Read More
There are two methods to implement inter process communication they are as follows −Shared memoryMessage passingNow, let us understand what a shared memory is.Shared memoryIt is one of the regions for data communication. It is used for communication between single processor and multiprocessor systems where the processes that are to be communicated present on the same machine and they are sharing common address space.The shared memory code that has to be read or write the data that should be written explicitly by the application programmer.It is going to provide a maximum speed of computations because the communication is done with ... Read More
A windows operating system is software that acts as an interface between the user and the hardware component. The operating system is like a prime minister that controls the entire task happening in the computer. It is in between a user interface and the hardware.It is system software. In the absence of the system software we cannot do any task on the computer. An operating system is software which performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling the peripheral device like disk scheduling. Some of popular operating systems are windows.The ... Read More