Approaching Testing for a new feature in Amazon's Shopping Cart System

As a Quality Assurance Engineer, my approach to testing a new feature for Amazon's shopping cart system would follow several steps:

1. Understanding the Requirement:
   The first step would be to understand the feature requirements and to create a checklist of expected outcomes. This step will help me to define the scope of testing and plan the test cases accordingly.
2. Creating Test Cases:
   Based on the requirements, I would create a set of test cases that cover the different aspects of the new feature, including positive and negative scenarios.
3. Implementing Test Cases:
   Once the test cases are defined, I would develop and implement these test cases in the Test Management Tool, keeping track of the testing progress through a dashboard.
4. Executing Tests:
   After implementing the test cases, I would execute the tests, reporting defects if any and validating the results.
5. Regression Testing:
   Finally, I would perform regression testing to ensure that the changes work correctly with the existing features in the shopping cart.

Example Test Cases

• Verify the new feature is displayed in the shopping cart correctly for all browsers and devices.
• Verify the new feature is responsive on different screen sizes.
• Verify the different variations of the feature i.e., adding, updating or deleting items work correctly.
• Verify the new feature does not affect the performance of the rest of the shopping cart.
• Verify the new feature does not make the shopping cart unresponsive or lead to any errors despite heavy traffic.
• Verify the new feature's data is being tracked and stored correctly in the Amazon's backend systems.

Prioritization:
To prioritize the above test cases, I would first perform a risk analysis. Based on the criticality of the feature and the impact of failure on the business, I would prioritize the tests. For example, I would prioritize the test cases that would cause a revenue loss or impact the customer experience.

Tools and Software:

For implementing and managing the test cases in a test management tool, I would use the existing tools available at Amazon, including AWS Device Farm and AWS Device Testing.

References:

• AWS Device Farm
• AWS Device Testing
• Atlassian - Test Management Tool