system of signals synonym


(IEEE) (1) A record of the execution of a computer program, showing the sequence of instructions executed, the names and values of variables, or both.

Ive called several times, but I keep getting a busy signal. (IEEE) (1) The process of studying user needs to arrive at a definition of a system, hardware, or software requirements. See: overflow, overflow exception. translation. Syn: grouping factor. prototyping. Note: This term is defined differently in various programming languages. (2) All actions that are taken to ensure that a development organization delivers products that meet performance requirements and adhere to standards and procedures. FIPS. Using a modem to communicate between computers. CAD software may also be highly specialized for creating products such as printed circuits and integrated circuits. specification, system. Contrast with error seeding. graph. (IEEE) A deliverable or in- process document produced or acquired during software development or maintenance. (IEEE) The period of time in the software life cycle in which the components of a software product are evaluated and integrated, and the software product is evaluated to determine whether or not requirements have been satisfied. object oriented language. Specialized circuitry or a dedicated microprocessor that transfers data from memory to memory without using the CPU. Later versions use the more effective CRC method. A standard against which measurements or comparisons can be made. They perform general functions such as formatting electronic media, making copies of files, or deleting files. qualification, installation. A logic chip that is programmed at the user's site. Syn: component, module. (IEEE) The process of intentionally adding known faults to those already in a computer program for the purpose of monitoring the rate of detection and removal, and estimating the number of faults remaining in the program. High-capacity cable used in communications and video transmissions. version. configuration identification. Circular rotating magnetic storage hardware. (3) A packaged functional hardware unit suitable for use with other components. (2) The result of the process in (1). See: application software, operating system, system software, utility software. Most computers are in this category, including the IBM compatible microcomputers. white-box testing. Contrast with batch. Syn: machine code. Linear magnetic storage hardware, rolled onto a reel or cassette. McGraw-Hill Electronics Dictionary, Fifth Edition, 1994, McGraw-Hill Inc. McGraw-Hill Dictionary of Scientific & Technical Terms, Fifth Edition, 1994, McGraw-Hill Inc.. Webster's New Universal Unabridged Dictionary, Deluxe Second Edition, 1979. (Beizer) A model of the structure of the system's [program's] behavior, i.e., functionality. software safety design analysis. test documentation. testing, development. See: project plan, requirements analysis, architectural design, structured design, system safety, testing, configuration management. One or more characters, usually within a set of data, that contains information about the set, including its identification. This technique is often called stress testing. Relationships between files are created by comparing data such as account numbers and names. (1) (ISO) A process used to determine if data are inaccurate, incomplete, or unreasonable. (Pressman) Acceptance testing performed by the customer in a controlled environment at the developer's site. See: modular decomposition. This causes the "fuse to blow", opening that link. The definition of alarm is to warn of danger or to make someone afraid or distressed. bits per second. sizing and timing analysis. (IEEE) A short computer program that is permanently resident or easily loaded into a computer and whose execution brings a larger program, such an operating system or its loader, into memory. (2) (IEEE) A model that behaves or operates like a given system when provided a set of controlled inputs. A refinement called hierarchical input-process-output identifies the steps, inputs, and outputs at both general and detailed levels of detail. requirements analysis. Contrast with cyclic redundancy check [CRC], parity check. An international organization for communications standards. Sign up to make the most of YourDictionary. (IEEE) A software component that is called by the operating system of a computer and that usually calls other software components. latency. (NIST) A diagram of a system, instrument or computer, in which the principal parts are represented by suitably annotated geometrical figures to show both the basic functions of the parts and the functional relationships between them. computer aided manufacturing. In quantum mechanics, observables correspond to mathematical operators used in the calculation of measurable quantities. (2) (DOD) A composite, at any level of complexity, of personnel, procedures, materials, tools, equipment, facilities, and software. However, client-server systems are inherently more complex than file server systems. A measure of the speed of data transfer in a communications system. See: risk assessment, software safety change analysis, software safety code analysis, software safety design analysis, software safety requirements analysis, software safety test analysis, system safety. See: configuration control. tape. See: traceability. An inherent, possibly accidental, trait, quality, or property of software; e.g., functionality, performance, attributes, design constraints, number of states, lines or branches. system. Contrast with branch coverage, decision coverage, multiple condition coverage, path coverage, statement coverage. (IEEE) A diagram that depicts data sources, data sinks, data storage, and processes performed on data as nodes, and logical flow of data as links between the nodes. (IEEE) Documentation specifying the details of the test approach for a software feature or combination of software features and identifying the associated tests. mutation analysis. (4) In programming languages, a subdivision of a program that serves to group related statements, delimit routines, specify storage allocation, delineate the applicability of labels, or segment parts of the program for other purposes.

(1) (IEEE) To initialize a computer system by clearing memory and reloading the operating system. (NIST) Testing to satisfy the criterion that each statement in a program be executed at least once during program testing. All Rights Reserved, Homeostatic Mechanisms and Cellular Communication, Genetic Information and Protein Synthesis. certification. mishap. integrated drive electronics. Contrast with ST-506, EDSI, IDE. radiofrequency interference. verification, software. See: requirements specification. See: system administrator. change control. event table. data item. HHS Publication FDA 90-4236, Preproduction Quality Assurance Planning. See: assembly language. A device which has its own computing power dedicated to specific functions, usually consisting of a microprocessor and firmware. patch. Contrast with modulation. (2) A specific purpose of an entity, or its characteristic action.

Implies the excessive use of GOTO instructions. finger, contact. bomb. Programming the chip consists of sending an electrical current of a specified size through each link which is to be changed to the alternate state. Such code can result from poor coding style, or can be an artifact of previous versions or debugging efforts. Program source code written without a coherent structure. null data. (IEEE) Pertaining to a interactive system or mode of operation in which the interaction between the user and the system resembles a human dialog. asynchronous. See: structured design. incremental integration. completeness. (Myers) A test coverage criteria requiring enough test cases such that each condition in a decision takes on all possible outcomes at least once, and each point of entry to a program or subroutine is invoked at least once. protection exception. Ensuring continuous adequate performance of sensing, measurement, and actuating equipment with regard to specified accuracy and precision requirements. A sequence of actions the user should take to avoid a problem or system limitation until the computer program is changed. very large scale integration. megabyte. Federal Information Processing Standards. See: anomaly, defect, error, exception, fault. Contrast with mutation analysis. specification, requirements. Installation includes installing a new computer system, new software or hardware, or otherwise modifying the current system. CAD software is available for generic design or specialized uses such as architectural, electrical, and mechanical design. (IEEE) A value whose definition is to be supplied within the context of a specific operating system. A distinction can be made between a warm boot and a cold boot. (NBS) Testing to satisfy coverage criteria that each logical path through the program be tested. Syn: white-box testing, glass-box testing, logic driven testing. password. (ISO) Testing a new or an altered data processing system with the same source data that is used in another system. See: measurable. Chips which may be programmed and erased numerous times like an EPROM. See: analog, digital. This is the American English definition of signal.View British English definition of signal. (2) A person whose occupation requires the use of an information system but does not require any knowledge of computers or computer programming. (IEEE) A trace produced from historical data recorded during the execution of a computer program. utility software. A programming language which requires little knowledge of the target computer, can be translated into several different machine languages, allows symbolic naming of operations and addresses, provides features designed to facilitate expression of data structures and program logic, and usually results in several machine instructions for each program statement. data bus. (2) Not susceptible to different interpretations. emulation. (IEEE) An audit conducted to verify that a configuration item, as built, conforms to the technical documentation that defines it. testing, regression. software characteristic. It receives and sends data through input-output channels, retrieves data and programs from memory, and conducts mathematical and logical functions of a program. end user. half duplex. traceability matrix. A structured software design technique; identification of the steps involved in each process to be performed and identifying the inputs to and outputs from each step. Testing designed to challenge a system's ability to manage the maximum amount of data over a period of time. Contrast with interrupt. She knew she was sending him mixed signals. virtual address extension. Place your thumb on the pad, and it'll signal me. system design review. (ANSI) Any person, organization, or functional unit that uses the services of an information processing system. Syn: path coverage. See: different software system analysis; testing, integration; testing, interface. Contrast with testing, structural. See: static analysis. MODEM access is often used between a remote location and a computer that has a master database and applications software, the host computer. enhanced small device interface. (1) (ISO) The number of records, words or characters in a block. software safety test analysis. optical fiber. Methods include top-down, breadth-first, depth-first, bottom-up. flowchart or flow diagram. Tests designed to evaluate the machine/user interface. testing, stress. (IEEE) Testing conducted to evaluate a system or component at or beyond the limits of its specified requirements. International Electrotechnical Commission. 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Plant sets off SOS for plant defense when it gets hurt, RASER proteins selectively hack and shut down cancer cells, Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use. The signalling rate of a line. data structure centered design. operating system. [A data element (field) is a component of a record, a record is a component of a file (database)]. (2) The compiler takes the finished source code listing as input and outputs the machine code instructions that the computer must have to execute the program. (Myers) Partitioning the input domain of a program into a finite number of classes [sets], to identify a minimal set of well selected test cases to represent these classes.