What is software development based on acceptance testing?

• They define expectations: They define what must be done for functionality to be considered completed.
• They facilitate communication: They help the development team and stakeholders understand each other’s expectations.
• Ensure quality: They provide a basis for testing, which helps detect errors at an early stage.
• Minimize risks: Reduce the risk of misunderstandings and errors due to misunderstanding of requirements.

• Team collaboration: Acceptance tests are created jointly by developers, testers and stakeholders.
• Defining acceptance criteria: Clearly defined conditions that must be met for functionality to be accepted.
• Test Automation: Acceptance tests are often automated to allow them to be run and verified on a regular basis.
• Continuous improvement: The ATDD process is iterative and based on continuous improvement and adjustment of tests.

1. Understanding the requirements: The development team must understand exactly what the customer or user wants.
2. Creating acceptance tests: Tests are defined jointly by developers, testers and stakeholders.
3. Test automation: acceptance tests are automated so that they can be run regularly.
4. Functionality implementation: Developers implement functionality according to acceptance tests.
5. Verification: Acceptance tests are run to verify that the implementation meets the requirements.

• Increased software quality: Acceptance testing helps detect and fix bugs at an early stage.
• Better communication: They help in understanding expectations between the team and stakeholders.
• Faster delivery: Automation of acceptance testing speeds up the verification and deployment process.
• Risk Reduction: Reduce the risk of misunderstandings and errors due to misunderstanding of requirements.

• Complexity: Creating acceptance tests can be complicated and time-consuming.
• Changing requirements: Requirements may change during the course of a project, requiring test updates.
• Team collaboration: Requires close collaboration between developers, testers and stakeholders.
• Automation costs: Test automation can involve additional costs and resources.

1. Team collaboration: creating acceptance tests should be a joint effort of the entire team.
2. Regular review: Acceptance tests should be reviewed and updated regularly.
3. Automation: Automation of acceptance testing speeds up the verification and implementation process.
4. Documentation: acceptance tests should be well documented and understood by all team members.
5. Flexibility: Acceptance tests should be flexible and adaptable as the project needs.

• Cucumber: a tool for creating acceptance tests in the Gherkin language.
• FitNesse: A tool for creating and running acceptance tests.
• SpecFlow: A tool for creating acceptance tests in .NET.
• JBehave: A tool for creating acceptance tests in Java.

• E-commerce apps: Acceptance tests can check whether a user can add a product to a shopping cart and make a payment.
• Mobile apps: Acceptance tests can verify that the app works properly on different devices and operating systems.
• CRM systems: Acceptance testing can verify that a user can add a new contact and generate sales reports.

• Team reviews: Regular reviews of acceptance tests by the team.
• Automatic test run: run acceptance tests on a regular basis to verify compliance.
• Feedback from stakeholders: Regularly gather feedback from stakeholders and adjust acceptance tests as needed.

In summary, acceptance test-driven software development (ATDD) is an effective approach to software development that helps development teams deliver products that meet stakeholder expectations. With clear, precise and testable acceptance criteria, product quality and compliance can be effectively managed.