Answer / saran

Equivalence

Select the input value with Common Property

For ex: 10 TO 15

>15 is invalid
<10 is invalid
10 to 15 is valid

Boundary value analysis

Select input value with edge of the classs.(one plus add
and one mins add)

For ex: 10 to 15

3 type of boundary a. Low 2.On 3.Upper

a. Low-- 9,11 checked
b. On--10 to 15 checked
3.Upper- 14,16 checked

Thanks
Saravanan, chennai

Answer / rajesh

BVA:is aimed at testing the entity at its boundaries
ECP:is a partition testing strategy where v partion the
input,space into eqvilance class.

Answer / ranjitha

Equivalence partitioning - The whole range of input is
split into set of equivalence classes, such that a single
value acts as a sample for each equivalence class.
Exhaustive testing is not required in this case.

This technique consists of developing test cases and data
that focus on the input and output boundaries of a given
function as these are more prone to errors.

Example: A program needs to be tested with input range from
1000 to 2000. Boundary analysis will have the following
boundary values to be tested.

Lower boundary: (999 and 1001)
Upper boundary: (1999 and 2001)
On the boundary: (1000 and 2000)

Answer / sreejith

BVA and EQ are not same.

If we want to test a age filed. ie, range from 1-120

In EQ

we will check with some random data 1,2,3 then 49,50,51
and then 118,119,120.


In BVA

we will check with data -1, any valid data (1-
120) ,and 121.

Answer / preeti

there are only two possibilities : possibile and impossible
so that is divide into class VALID and INVALID
now:
For ECP: For testing we divide the class into 2 invalids
and 1 valid. classify and test with one representative from
each class.min representatives are(3)
For BVA: besides the three sbove classes of ECP we also
check boundray value for the given range that is LB,UB.
so min representatives are(5).

Answer / jithin

Consider an example, which have different intervals
from 1 to 25,
over 25 and up to 50,
over 50 and up to 100,
above 100

In such case equivalence boundaries are
Invalid entry 0.01
Valid boundary 1-25
Valid boundary 26-50
Valid boundary 51-100
above boundary 101-Above

Answer / 123

If u see BVA and Equivalence are similar only

set of ranges, set of values of a ONE Valid and TWO invalid

values to be taken for the test.

u can take it as A, A+1, A-1

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