Software
Test Design Using Pairwise Techniques
1 Day
One
of the
biggest challenges testers face is trying to adequately test enough
software conditions when there are very high numbers of possible
combinations of conditions that could be performed. Significant
research has shown that the most common cause of missed
defects in testing is the failure to test pairs of related conditions.
Fortunately,
there are techniques and tools available to identify all the paired
conditions in software. These are called pairwise testing techniques.
This
course is designed for software testers who have a basic knowledge of
testing, some experience in testing, and want to go deeper in how to
design and conduct efficient tests using pairwise techniques.
You
will learn a variety of techniques within the scope of pairwise
techniques, including orthogonal arrays, pairwise test design using the
pairwise algorithm, and classification trees. You will also learn the
tradeoffs and tools in using the various techniques.
This
is an interactive workshop that allows you to experience by hands-on
application how to actually use these powerful test design techniques
on your own projects.
Upon
completion of this course, you will be able to:
- Get
the most test coverage from the least number of test cases
- Understand
the theory behind the pairwise concept
- Find
the best-fit orthogonal array for a given situation
- Describe
effective test tools available for pairwise test case design
- Design
pairwise tests at a business scenario level
- Use
pairwise test design to explain test cases to business users
- Know
when pairwise test design is not the total answer in balancing test
scope and resources
Who
Will Benefit
- Test
Managers
- Test
Team Leaders
- Test
Engineers
- Test
Designers and Analysts
- Testers
- Software
Developers
The
program requires basic testing knowledge or experience.
Program Information
This course is presented on an in-house basis only
unless offered as a special public course. Contact
us for information about how to bring this course into your
organization.
Content and Structure
Topics
Module
PWTA – Introduction (30 mins.)
- What is
Test Case Optimization?
- Why is
Optimization Needed?
- An Example
- So, What is
a Workable Approach?
- What’s the
Need?
- The Realm
of Pairwise Techniques
- The Fault
Model Behind Pairwise Testing
- What
Research Indicates
- What Common
Sense Indicates
Module
PWTB – Orthogonal Arrays (2 hrs.)
- The Value
of Designing Tests With Orthogonal Arrays
- Terminology
- Orthogonal
Notation
- Orthogonal
Array – Example
- Facts About
Orthogonal Arrays
- The Good
News
- A Process
for Applying Orthogonal Arrays
- An Example
- Step 1 –
Identify Conditions
- Step 2 –
Identify Values in Conditions to be Tested
- Step 3 –
Find a Suitable Array
- Step 4 –
Place the Condition Values into the Array
- Step 5 –
Fill in the Gaps
- Step 6 –
Define the Test Cases
- Exercise –
Finding the Best-fit Orthogonal Array
- Exercise –
Apply an Orthogonal Array for Case Study Exercise
- Sample
Orthogonal Arrays
- Summary
Module
PWTC – Pairwise Testing (1 hr.)
- The
Allpairs Algorithm
- Tools for
Pairwise Testing – Allpairs
- How to Use
Allpairs
- Where to
Find Pairwise tools
- Exercise
- Creating Test Cases Using Allpairs Tool
- A Word of
Warning About Pairwise Testing
- Summary
Module
PWTD – Classification Trees (1 hr.)
- The
Background of Classification Trees
- How
Classification Trees Work
- An Example
of Classification Trees
- Tools for
Classification Trees
- Exercise –
Creating Test Cases Using the CTE XL Tool
- Summary
Module
PWTE – Pairwise Testing at the Scenario Level (1 hr.)
- How to
Identify Usage and Business Scenarios
- The Role of
Models
- Process
Models
- Use Case
Models
- Prioritizing
the Scenarios
- Examples
- Orthogonal
Arrays at the Scenario Level
- Pairwise
cases at the Scenario Level
- Classification
Trees at the Scenario Level
- Summary
Module
PWTF – Efficient Test Case Organization (30 mins)
- Test
Planning Components
- How the
Pieces Fit Together
- The
Relationship Between Test Cases and Test Scripts
- Example
Test Script
- Example
Test Case
- Test Script
Modularity and Reusability
- Example
- Summary
Module
PWTG – Summary (10 mins)
- Review –
How Do Orthogonal Arrays and Pairwise Testing Help?
- Resources
for Orthogonal Arrays and Pairwise Testing
- Final
Questions and Answers
All
materials on this site
copyright 1996 - 2009, Rice Consulting Services, Inc.
Rice
Consulting Services, Inc.
P.O. Box 892003
Oklahoma City, OK 73189
405-691-8075