# refinement

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**X-Machine Testing**— The (Stream) X Machine Testing Methodology is a complete functional testing approach to software and hardware testingM. Holcombe and F. Ipate (1998) Correct Systems Building a Business Process Solution . Springer, Applied Computing Series.] that… …82

**Sensitive periods**— is a term coined by the Dutch geneticist Hugo de Vries and adopted by the Italian educator Maria Montessori to refer to important periods of childhood development. Montessori believed that every human being goes through a series of quantum leaps… …83

**Partition of an interval**— In mathematics, a partition, P of an interval [a, b] on the real line is a finite sequence of the form a = x0 < x1 < x2 < ... < xn = b. Such partitions are used in the theory of the Riemann integral, the Riemann–Stieltjes integral and …84

**Darboux integral**— In real analysis, a branch of mathematics, the Darboux integral or Darboux sum is one possible definition of the integral of a function. Darboux integrals are equivalent to Riemann integrals, meaning that a function is Darboux integrable if and… …85

**Jerry Donohue**— Double Helix Discovery William Astbury Oswald Avery Francis Crick Erwin Chargaff …86

**Metacompact space**— In mathematics, in the field of general topology, a topological space is said to be metacompact if every open cover has a point finite open refinement. That is, given any open cover of the topological space, there is a refinement which is again… …87

**RCOS**— is a relational semantic model and refinement calculus for object oriented and component based software development. It was originally developed by He Jifeng, Zhiming Liu and Xiaoshan Li at UNU IIST. It supports both state based and event based… …88

**technology, history of**— Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …89

**Western sculpture**— ▪ art Introduction three dimensional artistic forms produced in what is now Europe and later in non European areas dominated by European culture (such as North America) from the Metal Ages (Europe, history of) to the present. Like… …90

**Phillip Colella**— Nationality American Fields …