# Namespace OptimaJet.Workflow.Core.Logging.Events ## Enums - [ActivityExecutionEventType](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Logging.Events/ActivityExecutionEventType/) Specifies categories for workflow execution events stored in [ProcessLogEntry.Properties](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Logging/ProcessLogEntry/).