Fundamentals of software testing

This document provides an overview of software testing and the testing process. It discusses: - The purpose of testing is to find errors and ensure software meets requirements. - The testing process includes test planning, analysis and design, execution, evaluation and reporting. - Key methodologies like unit, integration, system and acceptance testing are explained. - Regression testing is described as important for ensuring changes don't break existing functionality. - The roles of different teams in the testing process and the goals at each testing level are outlined.

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Explains in detail with example about calculation of - 1.Percentage Test cases Executed [Test Coverage] 2.Percentage Test cases not executed 3.Percentage Test cases Passed 4.Percentage Test cases Failed 5.Percentage Test cases BLOCKED/Deferred 6.Defect Density 7.Defect Removal Efficiency (DRE) 8.Defect Leakage 9.Defect Rejection ratio [Invalid bug ratio] 10.Percentage of Critical defects 11.Percentage of High defects 12.Percentage of Medium defects 13.Percentage of Low/Lowest defects

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The document describes the phases of the software testing life cycle (STLC), which includes requirement, planning, analysis, design, implementation, execution, conclusion, and closure phases. Each phase has specific goals and deliverables. The requirement phase involves analyzing requirements to determine testability. The planning phase identifies testing activities, resources, and metrics. The analysis phase defines what to test by identifying test conditions. The design phase defines how to test by detailing test conditions and creating test data. The implementation phase involves creating and reviewing test cases. The execution phase runs the test cases and logs any defects. The conclusion phase focuses on reporting and exit criteria. The closure phase verifies all testing is complete and identifies lessons learned.

The document discusses software testing, outlining key achievements in the field, dreams for the future of testing, and ongoing challenges. Some of the achievements mentioned include establishing testing as an essential software engineering activity, developing test process models, and advancing testing techniques for object-oriented and component-based systems. The dreams include developing a universal test theory, enabling fully automated testing, and maximizing the efficacy and cost-effectiveness of testing. Current challenges pertain to testing modern complex systems and evolving software.

The document outlines the key phases of the Software Testing Life Cycle (STLC) process. It describes 6 phases: 1) Requirement Analysis/Review to understand requirements, 2) Test Planning to develop the test plan, 3) Test Designing to create test cases and scripts, 4) Test Environment Setup to prepare the test environment, 5) Test Execution to run the test cases and report bugs, and 6) Test Closure to finalize testing and complete documentation. The goal of STLC is to systematically test software through a planned process to improve quality.

This document provides an overview of performance and load testing basics. It defines key terms like throughput, response time, and tuning. It explains the difference between performance, load, and stress testing. Performance testing is done to evaluate system speed, throughput, and utilization in comparison to other versions or products. Load testing exercises the system under heavy loads to identify problems, while stress testing tries to break the system. Performance testing should occur during design, development, and deployment phases to ensure system meets expectations under load. Key transactions like high frequency, mission critical, read, and update transactions should be tested. The testing process involves planning, recording test scripts, modifying scripts, executing tests, monitoring tests, and analyzing results.

This document provides an overview of software testing fundamentals and the software development lifecycle. It discusses different types of testing including static testing, dynamic testing, component testing, integration testing, and system testing. It also addresses test planning, management, and tools. The document emphasizes that early test design helps build quality and prevents faults by finding issues early when they are cheaper to fix. An experience report shows how early testing led to fewer faults and happier users compared to a previous phase without early testing.

This document provides an overview of software testing concepts and processes. It discusses the importance of testing in the software development lifecycle and defines key terms like errors, bugs, faults, and failures. It also describes different types of testing like unit testing, integration testing, system testing, and acceptance testing. Finally, it covers quality assurance and quality control processes and how bugs are managed throughout their lifecycle.

Testing types functional and nonfunctional Unit testing Integration testing System Testing Acceptance Testing (UAT) Smoke Testing Sanity Testing Regression Testing Alpha Testing Beta Testing Usability Security Efficiency → Performance Load Endurance Volume Stress Spike Scalability Portability Internationalization Localization Installation Migration

Testing software is conducted to ensure the system meets user needs and requirements. The primary objectives of testing are to verify that the right system was built according to specifications and that it was built correctly. Testing helps instill user confidence, ensures functionality and performance, and identifies any issues where the system does not meet specifications. Different types of testing include unit, integration, system, and user acceptance testing, which are done at various stages of the software development life cycle.