Answer / sandeepguttikonda

In testing terminology we need to use the word Defect
instead of Bug.

Defects can be divided into three types:

1) Masked Defect
2) Cascaded Defect
3) Latent Defect

Masked Defect: There will be a defect existing in the
application and it never occurs due to occurance of other
defect. Just like hiding in the applicatoin functionality.

So these type of defect caould not be able to find.

Example: A bus has to teavel from Delhi to Hyderabad. And
the driver is new and the only option to identify the route
is road marks or direction symbols. Unfortunately due to
last night wind blow the Hyderabad direction is chaged to
Banglore (This is a defect).And the bus tyres are made such
that they will not get punchered as garenteed by
manufacturer.

1) If in this case if the bus goes fine the driver might
have gone to wrong City. (Due to Environment Defect)

2) If the bus tyre has punchered before the bus reached the
direction symbols (High Priority Server Error Defect) the
previous defect 1 is not identified (Masked Defect).

Please let me know if you need further info

Thanks.

Regards,
Sandeep Guttikonda

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