software quality assurance
software quality assurance (SQA) The process of ensuring that a software system and its associated documentation are in all respects of sufficient quality for their purpose. While a quality assurance team may be involved in all stages of a development project, there is typically a recognized quality assurance activity following completion of development and prior to release of the system for operational use.
The checks performed by the quality assurance team (which should be independent of the development team) vary between organizations and also depend on the nature and purpose of the software system. However they typically include functional testing of the software, checks that
programming standards have been respected, that the program documentation is complete and of an adequate standard, and that the user documentation for the system is of the desired quality. The team would also probably explore the reliability of the software system, and attempt to ensure that the software system and its associated documentation are so organized as to promote system maintainability.
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SOLAR IMAGES TO BE MADE BY UNIQUE X-RAY TELESCOPES
Transcript from: Regulatory Intelligence Data; 4/2/1998; ; 700+ words
; ...investigator for the Chromospheric/Corona Spectroheliograph telescope. It will actually be a...selected the Chromospheric/Corona Spectroheliograph under the solar physics research...California. The Chromospheric/Corona Spectroheliograph will complement TRACE by providing...
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Research from S.V. Shestov and co-authors in the area of astrophysics published.
Newspaper article from: Physics Week; 3/24/2009; 548 words
; ...structures of the solar corona using data from the XUV spectroheliograph of the SPIRIT instrumentation onboard the CORONAS-F...calibration accuracy of the spectral sensitivity for the spectroheliograph has been analyzed based on spectral lines with density...
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NRL Staff Member to Receive 2009 George Ellery Hale Prize.
M2 Presswire; 4/29/2009; 700+ words
; ...environment. George Ellery Hale, for whom the prize is named, was a giant of U.S. astronomy. He invented the spectroheliograph and discovered magnetic fields in sunspots. He was a cofounder, and for 30 years, editor of the world's leading...
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The physics of chromospheric plasmas; proceedings.(Brief Article)(Book Review)
Magazine article from: SciTech Book News; 9/1/2007; 499 words
; ...Society of the Pacific conference series; v.368 QB472 Papers from an October 2006 meeting present recent work on spectroheliograph equipment and observations, the structure and dynamics of the solar chromosphere, active regions and sun spots...
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Doug and Mike Starn at Leo Castelli. (installation art) (New York, New York)(Review of Exhibitions)
Magazine article from: Art in America; 9/1/1994; ; 700+ words
; In a new body of work titled "Spectroheliographs" (1990-94), Doug and Mike Starn, with a maneuver that reflects their identity-melding twinship, have challenged "mutually...
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Answer Man: The Word on Science
Newspaper article from: The Washington Post; 9/6/2004; ; 700+ words
; ...pendulum, one of those tick-tock things that show the rotation of Earth. It doesn't work, though. Nor does the spectroheliograph in the center of the floor. This nifty device once broke the sun's rays down into the colors of the spectrum...
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Research on solar physics reported by A.G. Tlatov et al.
Newspaper article from: Physics Week; 5/5/2009; 482 words
; ...recent research from the United States, "We analyze the synoptic data taken in the Ca II K spectral line with spectroheliographs at Kodaikanal Observatory from 1907 to 1999, at Mount Wilson Observatory from 1915 to 1985, and at the National...
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spectroheliograph
Book article from: The Columbia Encyclopedia, Sixth Edition
spectroheliograph device for photographing the surface of the sun in a single wavelength...the resulting photograph is called a spectroheliogram. The spectroheliograph was invented in 1890 independently by G. Hale and by H. Deslandres...
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George Ellery Hale
Encyclopedia entry from: Encyclopedia of World Biography
...great observatories, invented the spectroheliograph, and discovered magnetic fields...photographing prominences, Hale invented the spectroheliograph—an instrument for photographing...continued his experiments with the spectroheliograph. In examining the spectra of prominences...
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Deslandres, Henri
Dictionary entry from: Complete Dictionary of Scientific Biography
...study of the sun, particularly for the invention of the spectroheliograph, an instrument that he completed at the Paris observatory...such as solar plages, prominences, and flares. The spectroheliograph was invented independently by the great American astro
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sun
Book article from: The Columbia Encyclopedia, Sixth Edition
...called the pyrheliometer. Other instruments devised especially for the study of the sun are the coronagraph and the spectroheliograph . These instruments have revealed a number of interesting phenomena occurring during the periods
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Hale, George Ellery
Book article from: The Oxford Companion to United States History
...installing the world's largest telescope. Hale also gained prominence as an astronomer with his invention of the spectroheliograph and the discovery of magnetic fields in sunspots. A key figure in the development of scientific institutions and...
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