Property-based testing, model-based testing, and fuzzing are all techniques used in software testing.

Property-based testing involves testing a software system's behavior against a set of properties that the system should satisfy. These properties can be thought of as assertions that should hold true for any input that the system receives. The input is randomly generated, and the system is tested to see if it meets these properties. Property-based testing is often used to find edge cases or unexpected behavior.

Model-based testing involves creating a model of the system, which can be a simplified version of the system or a representation of the system's behavior. This model is then used to generate test cases that can be used to test the system. Model-based testing is often used to test complex systems or systems with a large number of possible states.

Fuzzing involves testing a system by providing it with random, unexpected, or invalid input. The goal is to find vulnerabilities or unexpected behavior in the system. Fuzzing is often used to find security vulnerabilities, such as buffer overflow or SQL injection.

Overall, these techniques all have their own unique approaches to software testing, but they share the common goal of finding issues and ensuring the software behaves as expected.
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