Which component is typically expected to have stringent evaluation during deployment?

Apex Classes are typically expected to undergo stringent evaluation during deployment because they contain the core business logic of an application. When deploying Apex Classes, it is crucial to ensure that they function correctly and maintain the integrity of the system. This includes comprehensive testing with unit tests that must meet specific code coverage thresholds for the deployment to be successful.

In Salesforce, deployments involving Apex Classes not only require validated code but also adherence to best practices to prevent performance issues and security vulnerabilities. The evaluation ensures compliance with Salesforce governance limits, proper handling of exceptions, and efficient use of resources. This level of scrutiny is essential to maintain the application’s reliability and effectiveness in a production environment.

Other components like Custom Metadata Types, Static Resources, and Visualforce Pages have their importance and certain guidelines, but they do not typically undergo the same level of rigorous evaluation as Apex Classes during deployment. Custom Metadata Types focus more on configuration and generally do not have the same complexity. Static Resources are mainly about storing files such as images or scripts, which do not impact business logic directly. Visualforce Pages, while significant for UI rendering, typically do not have the same critical business logic concerns that Apex Classes do, making them less stringent in terms of evaluation.