Are you searching for the best ways to estimate test effort? If yes, then search no more. Here we have listed a complete and easy way that will make the test effort estimation easier for you. So, stay tuned to us until the end.
What is Test Estimation Effort?
Test estimation effort is a technique that involves predicting how much test-related work is needed to fulfill the objectives of testing a project and release or iteration leadership. It is amongst the software testing basics for the test manager.
The Factors that Control Test Effort Include:
- People characteristics
- Product characteristics
- Development process characteristics
- Test results
How Can We Estimate Test Effort?
Software testing is necessary, and the Test Manager must incorporate software testing into the project. Now the question arises that how can we estimate test effort? So, let’s get into this.
Two techniques are commonly used for software testing that are:
- Metrics-Based Technique
- Expert-Based Technique
This method involves the estimation of the test efforts based on the metrics of previous similar projects. It can also be based on typical values.
It involves the estimation of the test efforts based on the experts’ experience or the owners of the testing tasks.
Best Ways to Estimate Test Effort
Before getting into further details, keep the following tips in mind.
- To deal with unpredictable things, always remember sparing some buffer time because unexpected things may happen. Buffer time will help you deal with such situations.
- Never skip adding resource planning in the estimation, such as holidays, absence leave, and team availability.
- Take advantage of experience as it helps you make reasonable estimates due to possible similarities in the project.
- Your estimate may go wrong at the early stages of the project, but you have to stick to it. However, keep on rechecking constantly and do not hesitate to make modifications when needed.
Work Breakdown Structures
Work breakdown structure relies on breaking down the test project into small pieces that are allotted to individual members, and the efforts are estimated for each task. In the end, the effort estimation is validated before the final confirmation. That’s how the test manager estimates the test effort. It can be summarized as:
- Dividing the entire project into small pieces
- Allocating each task to a different member
- Estimating the efforts for each task
- Validating the estimation
Dividing the Entire Task into Small Tasks
To accomplish the complete task, you can divide a complex project into small modules. These modules can be further divided into sub-modules, and each sub-module is further divided into functionality. That’s how you divide the entire project into small tasks using the Work Breakdown Structure.
You can apply the breakdown structure to divide the tasks into five smaller tasks.
- Analyze software requirement specification
- Create the Test Specification
- Build up the Test Environment
- Execute the Test Cases
- Report Defects
After this, you can also break the tasks into each sub-tasks. This entire process aims to make the task as detailed and as much more straightforward as possible.
Allocate Each Task to Each Member
In the second step, each task is assigned to a separate member depending on his expertise. The task can be assigned to each member as follows:
|Analyze Software Requirement Specification||All Team Members|
|Create a Test Specification||Tester/Test Analysis|
|Build up the Test Environment||Test Administrator|
|Execute the Test Cases||Tester, Test Administrator|
Estimating the Efforts for Tasks
Two techniques are commonly used for effort estimation tasks. They are:
- Functional Point Method
- Three-Point Estimation
These two are quite detailed processes, and we won’t be going into detail about them here.
Validate the Estimation
Once you have created an aggregate estimate for the tasks discussed in the WBS, now you have to forward it to the management board. They will review and approve it.
The members of the management board are the CEO, Project manager, and stakeholders. These professionals will review and discuss the estimation plan with you. To make sure that they approve your plan, you have to explain your estimation to them both logically and reasonably.
Other Testing Techniques
- Some of the other estimate test effort techniques are:
- Wideband Delphi Technique
- Case Point Method
- Percentage Distribution
- Ad-hoc method