Dictionary · Systems and software engineering —Vocabulary

To carry out an instruction, process, or computer program; directing, managing, performing, and accomplishing the project work, providing the deliverables, and providing work performance information.

Closeness of the agreement between the results of measurements of the same measurand carried out under changed conditions of measurement.

Type of performance efficiency testing conducted to evaluate a test item's behavior under conditions of loading above anticipated or specified capacity requirements, or of resource availability below minimum specified requirements

Required, recommended, or permissible action, intended to contribute to the achievement of one or more outcomes of a process

Result of not having accurate or sufficient knowledge of a situation; state, even partial, of deficiency of information related to understanding or knowledge of an event, its consequence, or likelihood

Quantity or data item whose value can change

A quantifiable deviation, departure, or divergence away from a known baseline or expected value

Further documentation accompanying a requirement.

Anything observed in the documentation or operation of a system that deviates from expectations based on previously verified system, software, or hardware products or reference documents.

Systematic, independent, documented process for obtaining records, statements of fact, or other relevant information and assessing them objectively, to determine the extent to which specified requirements are fulfilled.

Of an , the action of destroying an instantiated .

Pertaining to the detection and isolation of faults or failures

Action of applying specific documented criteria to a specific software module, package or product for the purpose of determining acceptance or release of the software module, package or product.

Single entry, single exit multiple way branch that defines a control expression, specifies the processing to be performed for each value of the control expression, and returns control in all instances to the statement immediately following the overall construct.

The immediate environment in which a function (or set of functions in a diagram) operates

Standard against which results can be measured or assessed; Procedure, problem, or test that can be used to compare systems or components to each other or to a standard.

Property associated with a a set of real or abstract things that is some characteristic of interest.

degree to which the characteristics of data satisfy stated and implied needs when used under specified conditions

conversion of processes or equipment to automatic operation, or the results of the conversion

A limitation or implied requirement that constrains the design solution or implementation of the systems engineering process and is not changeable by the enterprise

Phase of a project in which a system is put into operation and cutover issues are resolved

Estimate or prediction of conditions and events in the project's future based on information and knowledge available at the time of the forecast. The information is based on the project's past performance and expected future performance, and includes information that could impact the project in the future, such as estimate at completion and estimate to complete.

Types of statements in which a choice between two or more possible outcomes controls which set of actions will result.

Physical equipment used to process, store, or transmit computer programs or data

The use of a data processing system to imitate another data processing system, so that the imitating system accepts the same data, executes the same programs, and achieves the same results as the imitated system.

An uncertain event or condition that, if it occurs, has a positive or negative effect on a project's objectives

Individual or organization having a right, share, claim, or interest in a system or in its possession of characteristics that meet their needs and expectations. An individual, group, or organization who may affect, be affected by, or perceive itself to be affected by a decision, activity, or outcome of a project.

Technically sophisticated computer enthusiast who uses his or her knowledge and means to gain unauthorized access to protected resources.

Diagram that represents the variation of a variable in comparison with that of one or more other variables. Diagram or other representation consisting of a finite set of nodes and internode connections called edges or arcs.

Individual or organization that performs development activities (including requirements analysis, design, testing through acceptance) during the system or software life‐cycle process.

Distinct components that a multidimensional construct encompasses

Collection of documents on a given subject; written or pictorial information describing, defining, specifying, reporting, or certifying activities, requirements, procedures, or results.

Anything affecting a subject system or affected by a subject system through interactions with it, or anything sharing an interpretation of interactions with a subject system

Difference between a computed, observed, or measured value or condition and the true, specified, or theoretically correct value or condition.

Distinct scope, within which common characteristics are exhibited, common rules observed, and over which a distribution transparency is preserved.

individual or group that interacts with a system or benefits from a system during its utilization

Combination of a hardware device and computer instructions or computer data that reside as read only software on the hardware device.

Computer system that provides for expertly solving problems in a given field or application area by drawing inferences from a knowledge base developed from human expertise.

Of software quality assurance (SQA), situation in which SQA is free from technical, managerial, and financial influences, intentional or unintentional

Approach to system design and development that aims to make interactive systems more usable by focusing on the use of the system; applying human factors, ergonomics and usability knowledge and techniques.

Confirmation, through the provision of objective evidence, that the requirements for a specific intended use or application have been fulfilled.

Data received from an external source

Discrete, bounded thing with an intrinsic, immutable, and unique identity. Individual occurrence of a type

Degree to which a system, product, or component prevents unauthorized access to, or modification of, computer programs or data.

Data transmitted to an external destination

Action that takes place with the participation of the environment of the object.

Degree to which two or more systems, products or components can exchange information and use the information that has been exchanged.

Creation of a national or specific regional version of a product.

Examination of the status of the activities of a supplier and of their results by the acquirer or a third party.

Data that describe other data.

Set of interrelated or interacting activities that transforms inputs into outputs

Individual or organization that performs the operations of a system.

Information item that presents an ordered series of steps to perform a process, activity, or task.

Activity in which a system or component is executed under specified conditions, the results are observed or recorded, and an evaluation is made of some aspect of the system or component.

Process by which an information processing system, or any of its parts, transfers data outside of that system or part