what is the diff b/w black box and white box

Answer Posted / mfsi_krushnas

Black-box and white-box are test design methods. Black-box
test design
treats the system as a "black-box", so it doesn't explicitly use
knowledge of the internal structure. Black-box test design
is usually
described as focusing on testing functional requirements.
Synonyms for
black-box include: behavioral, functional, opaque-box, and
closed-box. White-box test design allows one to peek inside
the "box",
and it focuses specifically on using internal knowledge of
the software
to guide the selection of test data. Synonyms for white-box
include:
structural, glass-box and clear-box.

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