Category Archives: QA-Testing

Software Quality Assurance / Testing

26 Feb

QA-Testing Definitions-Interview Questions: Part-II

QA-Testing Definitions-Interview Questions: II (F – S):

Data Dictionary:

A database that contains definitions of all data items defined during analysis.

Data Flow Diagram:

A modeling notation that represents a functional decomposition of a system.

Data Driven Testing:

Testing in which the action of a test case is parameterized by externally defined data values, maintained as a file or spreadsheet. A common technique in Automated Testing.

Debugging:

The process of finding and removing the causes of software failures.

Defect:

Nonconformance to requirements or functional / program specification

Dependency Testing:

Examines an application’s requirements for pre-existing software, initial states and configuration in order to maintain proper functionality.

Depth Testing:

A test that exercises a feature of a product in full detail.

Dynamic Testing:

Testing software through executing it.

Emulator:

A device, computer program, or system that accepts the same inputs and produces the same outputs as a given system.

Endurance Testing:

Checks for memory leaks or other problems that may occur with prolonged execution.

End-to-End testing:

Testing a complete application environment in a situation that mimics real-world use, such as interacting with a database, using network communications, or interacting with other hardware, applications, or systems if appropriate.

Equivalence Class:

A portion of a component’s input or output domains for which the component’s behaviour is assumed to be the same from the component’s specification.

Equivalence Partitioning:

A test case design technique for a component in which test cases are designed to execute representatives from equivalence classes.

Exhaustive Testing:

Testing which covers all combinations of input values and preconditions for an element of the software under test.

Functional Decomposition:

A technique used during planning, analysis and design; creates a functional hierarchy for the software.

Functional Specification:

A document that describes in detail the characteristics of the product with regard to its intended features.

Functional Testing:

• Testing the features and operational behavior of a product to ensure they correspond to its specifications.
• Testing that ignores the internal mechanism of a system or component and focuses solely on the outputs generated in response to selected inputs and execution conditions.

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Glass Box Testing:

A synonym for White Box Testing.

Gorilla Testing:

Testing one particular module,functionality heavily.

Gray Box Testing:

A combination of Black Box and White Box testing methodologies:

testing a piece of software against its specification but using some knowledge of its internal workings.

High Order Tests:

Black-box tests conducted once the software has been integrated.

Independent Test Group (ITG):

A group of people whose primary responsibility is software testing,

Inspection:

A group review quality improvement process for written material. It consists of two aspects; product (document itself) improvement and process improvement (of both document production and inspection).

Integration Testing:

Testing of combined parts of an application to determine if they function together correctly. Usually performed after unit and functional testing. This type of testing is especially relevant to client/server and distributed systems.

Installation Testing:

Confirms that the application under test recovers from expected or unexpected events without loss of data or functionality. Events can include shortage of disk space, unexpected loss of communication, or power out conditions.

Load Testing:

Read Performance Testing.

Localization Testing:

This term refers to making software specifically designed for a specific locality.

Loop Testing:

A white box testing technique that exercises program loops.

Metric:

A standard of measurement. Software metrics are the statistics describing the structure or content of a program. A metric should be a real objective measurement of something such as number of bugs per lines of code.

Monkey Testing:

Testing a system or an Application on the fly, i.e just few tests here and there to ensure the system or an application does not crash out.

Mutation Testing:

Testing done on the application where bugs are purposely added to it.

Negative Testing:

Testing aimed at showing software does not work. Also known as “test to fail”.

N+1 Testing:

A variation of Regression Testing. Testing conducted with multiple cycles in which errors found in test cycle N are resolved and the solution is retested in test cycle N+1. The cycles are typically repeated until the solution reaches a steady state and there are no errors.

Path Testing:

Testing in which all paths in the program source code are tested at least once.

Performance Testing:

Testing conducted to evaluate the compliance of a system or component with specified performance requirements. Often this is performed using an automated test tool to simulate large number of users. Also know as “Load Testing”.

Positive Testing:

Testing aimed at showing software works. Also known as “test to pass”.

Quality Assurance:

All those planned or systematic actions necessary to provide adequate confidence that a product or service is of the type and quality needed and expected by the customer.

Quality Audit:

A systematic and independent examination to determine whether quality activities and related results comply with planned arrangements and whether these arrangements are implemented effectively and are suitable to achieve objectives.

Quality Circle:

A group of individuals with related interests that meet at regular intervals to consider problems or other matters related to the quality of outputs of a process and to the correction of problems or to the improvement of quality.

Quality Control:

The operational techniques and the activities used to fulfill and verify requirements of quality.

Quality Management:

That aspect of the overall management function that determines and implements the quality policy.

Quality Policy:

The overall intentions and direction of an organization as regards quality as formally expressed by top management.

Quality System:

The organizational structure, responsibilities, procedures, processes, and resources for implementing quality management.

26 Feb

QA-Testing Definitions-Interview Questions: Part-I

QA-Testing Definitions-Interview Questions: I (A – I)

Acceptance Testing:

Testing conducted to enable a user/customer to determine whether to accept a software product. Normally performed to validate the software meets a set of agreed acceptance criteria.

Accessibility Testing:

Verifying a product is accessible to the people having disabilities (deaf, blind, mentally disabled etc.).

Ad Hoc Testing:

A testing phase where the tester tries to ‘break’ the system by randomly trying the system’s functionality. Can include negative testing as well.

Agile Testing:

Testing practice for projects using agile methodologies, treating development as the customer of testing and emphasizing a test-first design paradigm.

Application Binary Interface (ABI):

A specification defining requirements for portability of applications in binary forms across defferent system platforms and environments.

Application Programming Interface (API):

A formalized set of software calls and routines that can be referenced by an application program in order to access supporting system or network services.

Automated Software Quality (ASQ):

The use of software tools, such as automated testing tools, to improve software quality.

Automated Testing:

• Testing employing software tools which execute tests without manual intervention. Can be applied in GUI, performance, API, etc. testing.
• The use of software to control the execution of tests, the comparison of actual outcomes to predicted outcomes, the setting up of test preconditions, and other test control and test reporting functions.
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Backus-Naur Form:

A metalanguage used to formally describe the syntax of a language.

Basic Block:

A sequence of one or more consecutive, executable statements containing no branches.

Basis Path Testing:

A white box test case design technique that uses the algorithmic flow of the program to design tests.

Basis Set:

The set of tests derived using basis path testing.

Baseline:

The point at which some deliverable produced during the software engineering process is put under formal change control.

Benchmark Testing:

Tests that use representative sets of programs and data designed to evaluate the performance of computer hardware and software in a given configuration.

Beta Testing:

Testing of a rerelease of a software product conducted by customers.

Binary Portability Testing:

Testing an executable application for portability across system platforms and environments, usually for conformation to an ABI specification.

Black Box Testing:

Testing based on an analysis of the specification of a piece of software without reference to its internal workings. The goal is to test how well the component conforms to the published requirements for the component.

Bottom Up Testing:

An approach to integration testing where the lowest level components are tested first, then used to facilitate the testing of higher level components. The process is repeated until the component at the top of the hierarchy is tested.

Boundary Testing:

Test which focus on the boundary or limit conditions of the software being tested. (Some of these tests are stress tests).

Boundary Value Analysis:

In boundary value analysis, test cases are generated using the extremes of the input domaini, e.g. maximum, minimum, just inside/outside boundaries, typical values, and error values. BVA is similar to Equivalence Partitioning but focuses on “corner cases”.

Branch Testing:

Testing in which all branches in the program source code are tested at least once.

Breadth Testing:

A test suite that exercises the full functionality of a product but does not test features in detail.

Bug:

A fault in a program which causes the program to perform in an unintended or unanticipated manner.

CAST:

Computer Aided Software Testing.

Capture/Replay Tool:

A test tool that records test input as it is sent to the software under test. The input cases stored can then be used to reproduce the test at a later time. Most commonly applied to GUI test tools.

CMM:

The Capability Maturity Model for Software (CMM or SW-CMM) is a model for judging the maturity of the software processes of an organization and for identifying the key practices that are required to increase the maturity of these processes.

Cause Effect Graph:

A graphical representation of inputs and the associated outputs effects which can be used to design test cases.

Code Complete:

Phase of development where functionality is implemented in entirety; bug fixes are all that are left. All functions found in the Functional Specifications have been implemented.

Code Coverage:

An analysis method that determines which parts of the software have been executed (covered) by the test case suite and which parts have not been executed and therefore may require additional attention.

Code Inspection:

A formal testing technique where the programmer reviews source code with a group who ask questions analyzing the program logic, analyzing the code with respect to a checklist of historically common programming errors, and analyzing its compliance with coding standards.

Code Walkthrough:

A formal testing technique where source code is traced by a group with a small set of test cases, while the state of program variables is manually monitored, to analyze the programmer’s logic and assumptions.

Coding:

The generation of source code.

Compatibility Testing:

Testing whether software is compatible with other elements of a system with which it should operate, e.g. browsers, Operating Systems, or hardware.

Component:

A minimal software item for which a separate specification is available.

Component Testing:

See Unit Testing.

Concurrency Testing:

Multi-user testing geared towards determining the effects of accessing the same application code, module or database records. Identifies and measures the level of locking, deadlocking and use of single-threaded code and locking semaphores.

Conformance Testing:

The process of testing that an implementation conforms to the specification on which it is based. Usually applied to testing conformance to a formal standard.

Context Driven Testing:

The context-driven school of software testing is flavor of Agile Testing that advocates continuous and creative evaluation of testing opportunities in light of the potential information revealed and the value of that information to the organization right now.

Conversion Testing:

Testing of programs or procedures used to convert data from existing systems for use in replacement systems.

Cyclomatic Complexity:

A measure of the logical complexity of an algorithm, used in white-box testing.

-- Kedar Vaijanapurkar --