Here are the key differences between Property-based testing, Model-based testing, and Fuzzing:

Input Generation:
Property-based testing uses random or structured input generation based on the properties defined by the developer. Model-based testing uses a model or a representation of the system's behavior to generate test cases. Fuzzing uses random or mutated input data to test the system.

Test Coverage:
Property-based testing can achieve high test coverage by generating a large number of test cases that cover edge cases and unusual scenarios. Model-based testing can achieve high test coverage by testing against a model that represents the system's behavior. Fuzzing may not achieve high test coverage since it focuses on identifying defects that may not be visible through traditional testing methods.

Test Purpose:
Property-based testing is used to test the properties or characteristics of the system. Model-based testing is used to test the behavior of the system against a model. Fuzzing is used to identify potential security vulnerabilities or defects in the system.

Test Design:
Property-based testing requires developers to define the properties that the system must satisfy. Model-based testing requires developers to create a model of the system's behavior. Fuzzing requires little or no input from developers since it relies on randomly generated or mutated input data.

Test Execution:
Property-based testing requires a framework that can generate random or structured input data and test against the defined properties. Model-based testing requires a tool that can create a model of the system's behavior and generate test cases based on the model. Fuzzing requires a tool that can generate random or mutated input data and feed it into the system.

Output Analysis:
Property-based testing requires analyzing the output data to verify that the system satisfies the defined properties. Model-based testing requires analyzing the output data to verify that the system's behavior matches the model. Fuzzing requires analyzing the output data to identify potential defects or security vulnerabilities in the system.

In summary, Property-based testing, Model-based testing, and Fuzzing differ in terms of input generation, test coverage, test purpose, test design, test execution, and output analysis. Each technique has its own strengths and weaknesses, and the choice of technique depends on the specific requirements of the testing process.
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