NIST assists in performance characterization of a new CMM. (News Briefs).NIST (National Institute of Standards & Technology, Washington, DC, www.nist.gov) The standards-defining agency of the U.S. government, formerly the National Bureau of Standards. It is one of three agencies that fall under the Technology Administration (www.technology. engineers developed and delivered a modified version of the laser ball step gauge (LBSG) to a private manufacturing company. The system was designed and constructed at NIST to perform characterization tests In computer programming, a characterization test is a means to describe (characterize) the actual behavior of an existing piece of software, and therefore protect existing behavior of legacy code against unentended changes via automated testing. of very large coordinate measuring machines (CMMs). The group also participated in the performance evaluation Performance evaluation The assessment of a manager's results, which involves, first, determining whether the money manager added value by outperforming the established benchmark (performance measurement) and, second, determining how the money manager achieved the calculated return testing of the new CMM (Capability Maturity Model) A process developed by SEI in 1986 to help improve, over time, the application of an organization's supporting software technologies. by performing difficult long length measurement tests. The LBSG was designed specifically for establishing long reference lengths for large coordinate measuring machine performance evaluation. The private company expects to ship the LBSG system to Brazil, where their staff will use the system to perform acceptance tests on a much larger CMM. CONTACT: Charles Fronczek, (301) 975-4079; charles. fronczek@nist.gov. |
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