An approach to validating and verifying system development is the V-model.
The V-model is a representation of system development that highlights verification and validation steps in the system development process. The left side of the ‘V’ identifies steps that lead to code generation, including system specification and detailed software design. The right side of the V focuses on the verification and validation of steps cited on the left side, including software and system integration.
Depending on your application and its role in the process, you might focus on one or more of the steps called out in the V-model or repeat steps at several stages of the V-model. Code generation technology and related products provide tooling that you can apply to the V-model for system development. For more information about how you can apply MathWorks® code generation technology and related products to the V-model process, see Types of Simulation and Prototyping in the V-Model.
Use the V-model for system development for different types of simulation and prototyping, such as rapid simulation, system simulation, rapid prototyping, and rapid prototyping on target hardware. This table compares the types of simulation and prototyping identified on the left side of the V-model diagram shown in V-Model for System Development (Embedded Coder).
|Simulation||Rapid Simulation||System Simulation, Rapid Prototyping||Rapid Prototyping on Target Hardware|
|Purpose||Test and validate functionality of concept model||Refine, test, and validate functionality of concept model in nonreal time||Test new ideas and research||Refine and calibrate design during development process|
|Execution hardware||Development computer|
Standalone executable runs outside of MATLAB® and Simulink® environments
|PC or nontarget hardware||Embedded computing unit (ECU) or near-production hardware|
|Code efficiency and I/O latency||Not applicable||Not applicable||Less emphasis on code efficiency and I/O latency||More emphasis on code efficiency and I/O latency|
|Ease of use and cost|
Can simulate component (algorithm or controller) and environment (or plant)
Normal mode simulation in Simulink enables you to access, display, and tune data during verification
Can accelerate Simulink simulations
Easy to simulate models of hybrid dynamic systems that include components and environment models
Ideal for batch or Monte Carlo simulations
Can repeat simulations with varying data sets, interactively or programmatically by using scripts, without rebuilding the model
Can connect to Simulink to monitor signals and tune parameters
Might require custom real-time simulators and hardware
Might be done with inexpensive, off-the-shelf PC hardware and I/O cards
|Might use existing hardware for less expense and more convenience|