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Define software testing.
Software testing is a process used to help recognize the correctness, completeness and superiority of developed computer software. With that in mind, testing can never totally establish the correctness of computer software. Only the process of formal verification can show that there are no defects. "Testing is the process of demonstrating that defects are not there in the application that was developed."
Equivalence class: -It shows a set of valid or invalid states for input conditions. An input condition is either a particular numeric value, a range of values, a set of related val
What is a cohesive module? A cohesive module performs only "one task" in software process with little interaction with other modules. In other words cohesive module performs on
Illustrate Evolutionary prototyping Objective: The main objective of this model is to show the working system to the end-user. Example-AI systems. Advantages
The inability of a system or system component to perform a needed function within specified limits.
What are the two levels of testing? i. Component testing Individual components are tested. Tests are produced from developer's experience. ii. System Testing The group
Define software reliability. Software reliability is the probability that software will give failure-free operation in a fixed environment for a fixed interval of time. Probabi
Product Engineering The Product engineering which is also called system engineering is a problem solving activity. To function, desired product data, and behaviour are uncovere
What is quality? Quality, simplistically, means that a product should meet its requirement. This is problematical for software systems. There is a tension among custom
Q Distinguish software faults and software failures? Ans: In case of a failure a software doesn't do what the users expect, a fault is a programming bug that may or mayn't act
State Lehman's First law. A program that is used in true world environment essentially must change or become progressively less useful in that environment.
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