# Namespace OptimaJet.Workflow.MSSQL.Models ## Classes - [QueryDefinition](https://api.workflowengine.io/sql-server/OptimaJet.Workflow.MSSQL.Models/QueryDefinition/) Definition of query - [WorkflowForm](https://api.workflowengine.io/sql-server/OptimaJet.Workflow.MSSQL.Models/WorkflowForm/) - [WorkflowRuntime](https://api.workflowengine.io/sql-server/OptimaJet.Workflow.MSSQL.Models/WorkflowRuntime/) - [WorkflowSync](https://api.workflowengine.io/sql-server/OptimaJet.Workflow.MSSQL.Models/WorkflowSync/)