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KEY TERMS AND DEFINITIONS

Diversity or Multiversity (MV): A principle
providing use of several non-trivial versions. This
principle means performance of the same func-
tion by two and more options and processing of
data received in such ways for checking, choice
or formations of final or intermediate results and
decision-making on their further use.
Multi-Diversion System: MVS, in which two
or more VR types are applied.
Multi-Version Project: (MVP): A project,
in which the multi-version technology is applied
(version redundancy of processes is used) lead-
ing to creation of one- or multi-version system
(realization of version redundancy of products).
Multi-Version System (MVS): A system,
in which a few versions-products are used; one-

ADDITIONAL READING

Kharchenko, V. (1996). Theoretical foundations
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Littlewood, B., & Strigini, L. (2000). A discussion
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