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Software Testing

Test Case Point Estimation Technique

Overview

In this tutorial, we will learn the approach for estimating software testing effort using the Test Case Point Estimation (TCP) technique.

Estimation

Software Estimation is the process of determining the project cost, time, effort of the software project. A good estimation is important for the software project’s success.

TCP Analysis

TCP analysis is an approach to perform test estimation of Testing projects. Using this approach we can estimate test execution efforts in Testing projects.

In this approach, we will perform analysis for different testing activities.

  • TCP-Generation ( Test Case Generation )
  • TCP-A ( Automation)
  • TCP-ME ( Manual Execution )
  • TCP-AE ( Automation Execution )

TCP-Generation

The below factors can be considered for Test case generation:

Test case-ID ( A unique identifier to identify the test case in the project)
No. of steps in the Test Case
Interface with other Test Cases
Establishing a baseline Result
Complexity Weight
Complexity
Classification

Determine the Test Case Complexity based on the following rules:

Test Case Complexity

For Example, the weights can range from 0 to 3.

0 -> for Not Applicable
1 -> for Simple
2 -> for Average
3 -> for Complex

 

Based on the complexity weight we can assign test case points for the test cases. For example, below is a sample table of points. The weights in the table are only indicative and would be subject to change as per the application under test.

Test Case Points Weights

Look up the tables and compute the test case types.

Unadjusted TCP-G can be calculated as follows:

Unadjusted TCP-G = ( 4 * Number of Simple Test Cases ) + (8* Number of Average Test Cases X 8 ) + (12 * Number of Complex Test Cases )

Based on the Adjustment Factor:

Adjusted TCP-G can be calculated as follows:

Adjusted TCP-G = Unadjusted TCP-G * Adjustment Factor

Adjustment factor can be calculated based on several parameters of the application like:

  • Domain Complexity
  • i18n Support
  • Integration with other systems, etc

TCP Analysis Steps

TCP Analysis includes the following steps:

Document Test Cases.
Develop Automation Scripts.
Determine TCP-G
Determine TCP-ME
Determine TCP-Automation
Determine TCP-AE

Total TCP

TCP Estimation Template

The purpose of the TCP template testing document is to provide a detailed listing of Test Requirements and define elicited testing requirements feature-wise.

 

Test Effort Calculation

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