What is model-based testing in Tosca and how does it simplify test automation?

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Model-based testing (MBT) in Tricentis Tosca is a modern approach where test cases are created from reusable business models rather than writing scripts manually. It shifts the focus from code-level automation to high-level, business-oriented test design.

🧩 How It Works in Tosca

• Modules: Tosca scans the application and creates reusable components (Modules) for UI elements or APIs.

• Test Cases: You build test cases by linking these Modules with test data, creating test steps from business logic.

• Test Data: Managed separately using Tosca’s TestCase Design and Test Data Service, allowing easy data-driven testing.

✅ How It Simplifies Automation

1. No Coding Required
   Testers design tests using a drag-and-drop interface—ideal for non-technical users.

2. Reusability
   Modules are reusable across test cases, reducing duplication and effort.

3. Maintainability
   When the application changes, you only update the affected Module—not every test script.

4. Faster Test Design
   Create multiple variations of test cases using combinatorial test design without duplicating effort.

5. Business Alignment
   Tests reflect business processes, making them easier to understand, review, and validate.

6. Integration
   Tosca supports UI, API, and database testing within the same framework, simplifying end-to-end automation.

📌 Example

Testing a login screen:

• Scan login page → Create a Module (username, password, submit)

• Build test case → Drag Module, input test data

• Add variations → Automatically generate different login scenarios

In short, model-based testing in Tosca removes scripting complexity, speeds up test creation, and improves maintainability—making it ideal for enterprise-scale automation.

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