Occam’s razor is the principle that can be popularly stated as “when you have two competing theories that make exactly the same predictions, the simpler one is the better.” The principle is attributed to 14th-century English logician, William of Ockham. Occam’s razor may be alternatively phrased as pluralitas non est ponenda sine necessitate (“plurality should not be posited without necessity”)

Occam’s razor states that the explanation of any phenomenon should make as few assumptions as possible, eliminating those that make no difference in the observable predictions of the explanatory hypothesis or theory.

Comparing MDA and the atomistic model

MDA_Architecture_Atomistic_Model

The atomistic model contains only one level.

MDA_Atomistric_Model_1

The only object in the atomistic model is atom, i.e. symbolic element. There are no link-nodes or reference nodes, because there are encapsulated into the symbol.

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