# Customization The SQL Assessment API is a comprehensive solution that allows you not only to use the functionality that comes out of the box, but also customize the assessment workflows, depending on your needs. ## In This Section - [Understanding rules and probes](RulesandProbes.md) - [Rule](Rule.md) - [Probe reference](ProbeReference.md) - [Probe](Probe.md) - [Data Transformation](DataTransformation.md) - [Local Variables](LocalVariables.md)