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- Fourth-generation_programming_language abstract "First generation programming languages created a layer of abstraction above the machine-code program. Each subsequent generation represented a further distancing from the binary code that the computer hardware actually reads. Each new generation of programming languages speed up and simplified the process of creating an application, but sometimes there has been a trade-off in terms of the efficiency and robustness of the delivered applications. The term fourth-generation programming language (abbreviated 4GL) is better understood to be a fourth generation environment, packages of systems development software including very high level programming languages. These programming languages are often used for prototyping and evolutionary development of commercial business software. In the history of computer science, the 4GL followed the 3GL in an upward trend toward higher abstraction and statement power. The 4GL was followed by efforts to define and use a 5GL.[citation needed]The natural-language, block-structured mode of the third-generation programming languages improved the process of software development. However, 3GL development methods can be slow and error-prone. It became clear that some applications could be developed more rapidly by adding a higher-level programming language and methodology which would generate the equivalent of very complicated 3GL instructions with fewer errors. In some senses, software engineering arose to handle 3GL development. 4GL and 5GL projects are more oriented toward problem solving and systems engineering.[citation needed]All 4GLs are designed to reduce programming effort, the time it takes to develop software, and the cost of software development. They are not always successful in this task, sometimes resulting in inelegant and unmaintainable code. However, given the right problem, the use of an appropriate 4GL can be spectacularly successful as was seen with MARK-IV and MAPPER (see History Section, Santa Fe real-time tracking of their freight cars – the productivity gains were estimated to be 8 times over COBOL). The usability improvements obtained by some 4GLs (and their environment) allowed better exploration for heuristic solutions than did the 3GL.[citation needed]A quantitative definition of 4GL has been set by Capers Jones, as part of his work on function point analysis. Jones defines the various generations of programming languages in terms of developer productivity, measured in function points per staff-month. A 4GL is defined as a language that supports 12–20 function points per staff month. This correlates with about 16–27 lines of code per function point implemented in a 4GL.[citation needed]Fourth-generation languages have often been compared to domain-specific programming languages (DSLs). Some researchers state that 4GLs are a subset of DSLs.".
- Fourth-generation_programming_language wikiPageExternalLink aubit4gl.sourceforge.net.
- Fourth-generation_programming_language wikiPageExternalLink 14350279.pdf.
- Fourth-generation_programming_language wikiPageExternalLink www.4js.com.
- Fourth-generation_programming_language wikiPageExternalLink www.fourgen.com.
- Fourth-generation_programming_language wikiPageExternalLink CASETools.htm.
- Fourth-generation_programming_language wikiPageExternalLink infogene.
- Fourth-generation_programming_language wikiPageExternalLink ressources.
- Fourth-generation_programming_language wikiPageID "11367".
- Fourth-generation_programming_language wikiPageRevisionID "599834381".
- Fourth-generation_programming_language hasPhotoCollection Fourth-generation_programming_language.
- Fourth-generation_programming_language subject Category:4GL.
- Fourth-generation_programming_language subject Category:Programming_language_classification.
- Fourth-generation_programming_language type ProgrammingLanguage.
- Fourth-generation_programming_language type Software.
- Fourth-generation_programming_language type Work.
- Fourth-generation_programming_language type CreativeWork.
- Fourth-generation_programming_language type InformationEntity.
- Fourth-generation_programming_language comment "First generation programming languages created a layer of abstraction above the machine-code program. Each subsequent generation represented a further distancing from the binary code that the computer hardware actually reads. Each new generation of programming languages speed up and simplified the process of creating an application, but sometimes there has been a trade-off in terms of the efficiency and robustness of the delivered applications.".
- Fourth-generation_programming_language label "4GL".
- Fourth-generation_programming_language label "4GL".
- Fourth-generation_programming_language label "4GL".
- Fourth-generation_programming_language label "4GL".
- Fourth-generation_programming_language label "4GL".
- Fourth-generation_programming_language label "Fourth-generation programming language".
- Fourth-generation_programming_language label "Langage de programmation de quatrième génération".
- Fourth-generation_programming_language label "Lenguaje de programación de cuarta generación".
- Fourth-generation_programming_language label "Linguagem de programação de quarta geração".
- Fourth-generation_programming_language label "الجيل الرابع من لغات البرمجة".
- Fourth-generation_programming_language label "第四代程式語言".
- Fourth-generation_programming_language sameAs 4GL.
- Fourth-generation_programming_language sameAs Lenguaje_de_programación_de_cuarta_generación.
- Fourth-generation_programming_language sameAs Langage_de_programmation_de_quatrième_génération.
- Fourth-generation_programming_language sameAs 4GL.
- Fourth-generation_programming_language sameAs 4GL.
- Fourth-generation_programming_language sameAs 4세대_프로그래밍_언어.
- Fourth-generation_programming_language sameAs 4GL.
- Fourth-generation_programming_language sameAs 4GL.
- Fourth-generation_programming_language sameAs Linguagem_de_programação_de_quarta_geração.
- Fourth-generation_programming_language sameAs m.030p9.
- Fourth-generation_programming_language sameAs Q238137.
- Fourth-generation_programming_language sameAs Q238137.
- Fourth-generation_programming_language wasDerivedFrom Fourth-generation_programming_language?oldid=599834381.
- Fourth-generation_programming_language isPrimaryTopicOf Fourth-generation_programming_language.