Boundary Value analysis and Equivalence Partitioning Testing Technique, Relationship and Meaning

Boundary value analysis and equivalence partitioning are the testing techniques, so here we will introduces with the concept of these techniques and their importance

We all know that exhausting testing is not logical and possible because of limitation of time and budget. So we need to select those most effective test cases which are able to find almost all the possible defects.

So here we have these two techniques of testing Boundary value analysis and Equivalence Partitioning:

Equivalence Partitioning Testing Technique: In this technique test data will be divided into different -2 equal data classes.  The main use of this technique is to reduce the total numbers of test cases to definite set of test cases with covering maximum requirements.

Mean – It is like a process which takes all possible test cases and set them into classes. Test value will be picked from all selected class during testing.

Equivalence Partitioning is a type of black box testing technique which can be performed on all levels and types of testing like system, integration, unit etc.

Live example: Tickets Behavior in the Flight Reservation Application-

When passenger book new tickets then ticket value 1 to 10 are valid and will be booked but over booking will be treat as invalid booking.

i. So access values 11 to 99 will be considered invalid and an error message will show “You can book 10 tickets at one time”.

ii. And If user will enter the value 100 or more than 100, Then message will show “Invalid data, Please Enter the 2 digits number” or number will take only first 2 digits as default.

iii. If customer enters value less than 0 or below the 0 then # of default tickets should be change to 1 automatically.

iv. So these test cases can be divided according to Equivalence Partitions or the Equivalence classes. Then we can pick only one value from the different partitions for such testing.

Main logic: The main logic behind this technique is that if one value/condition will passed then it is assumed that other will also pass. Mean if one condition of test cases in such techniques will fail then other conditions in that conditions will definitely fail.

Equivalence Partitioning Technique

Boundary Value analysis: In test case creation process Boundary Value analysis is the next process after the Equivalence partitioning where test cases are selected at the boundary of the equivalence classes.

OR Simply Boundary Value Analysis test the edges between equivalence classes.

We can also call it Range Checking technique to boundary value analysis.

You can confirm properly and observe that you test values at both valid and invalid boundaries.

Example: In this technique you will check the values at the partitions like 0,1,10,11 and so on instead of one value of each partition as our earlier example

Relationship in between boundary value and equivalence partitioning: Boundary Value analysis and Equivalence partitioning both are closely related to each other and can be use on all type of testing levels together.

Boundary Value Analysis

Software Testing Principle	Software Development Life Cycle	Unit Testing
Integration Testing	System Acceptance Testing	Sanity and Smoke Testing
Regression Testing	Non Functional Testing	Test Case
Test Scenario	Software Testing Rules	SQL For Software Testing
Test Case Design and Example	Test Base	Traceability Matrix
Boundary Value analysis	Decision Table in Software Testing	State Transition Definition
Use Case Testing	Testing Review	Techniques of Test Estimation
Test Plan Structure	Definition of Bug	Bug Life Cycle
Automation Testing Tools	Test Web Based Application	Software Testing Types
Software Testing Techniques	Techniques in Software Testing	Test Data
Software Testing Life Cycle	Black Box Testing	Difference between Black Box testing and White Box Testing
Smoke and Sanity Testing	Testing Methodology	Extreme Programming
White Box Testing	System Software Testing	Performance Testing
Usability Testing	User Acceptance Testing	Regression Testing
MANUAL SOFTWARE TESTING	Automation software Testing	Functional Testing

live example of boundary value analysis and equivalence partitioning techniques, relationship in between boundary value and equivalence partitioning, range checking technique.

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