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In software engineering, an ER model is commonly formed to represent things a business needs to remember in order to perform business processes. Consequently, the ER model becomes an abstract data model , [ 1 ] that defines a data or information structure that can be implemented in a database , typically a relational database .
In 1961, the Conference of Engineering Societies of Western Europe and the United States of America defined "professional engineer" as follows: [6]A professional engineer is competent by virtue of his/her fundamental education and training to apply the scientific method and outlook to the analysis and solution of engineering problems.
MLWN – mean low water neaps; MLWS – mean low water springs; mm – millimetre (SI unit) MM – prefix designating a number in millions (thousand-thousand) MMbod – million barrels of oil per day; MMboe – million barrels of oil equivalent; MMboed – million barrels of oil equivalent per day; MMbpd – million barrels per day
Engineering has existed since ancient times, when humans devised inventions such as the wedge, lever, wheel and pulley, etc. The term engineering is derived from the word engineer, which itself dates back to the 14th century when an engine'er (literally, one who builds or operates a siege engine) referred to "a constructor of military engines". [7]
Glossary of aerospace engineering This article includes an engineering-related list of lists . If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.
ER Collet . The "ER" collet system, developed and patented by Swiss manufacturer Rego-Fix in 1972, and standardized as DIN 6499, is the most widely used tool clamping system in the world and today available from many producers worldwide. [7] [8] The standard series are: ER-8, ER-11, ER-16, ER-20, ER-25, ER-32, ER-40, and ER-50. The "ER" name ...
Regulation and licensure in engineering is established by various jurisdictions of the world to encourage life, public welfare, safety, well-being, then environment and other interests of the general public [1] and to define the licensure process through which an engineer becomes licensed to practice engineering and to provide professional services and products to the public.
The discipline of engineering encompasses a broad range of more specialized fields of engineering, each with a more specific emphasis on particular areas of applied mathematics, applied science, and types of application. The term engineering is derived from the Latin ingenium, meaning "cleverness" and ingeniare, meaning "to contrive, devise". [196]