# Namespace OptimaJet.Workflow.SQLite.Models ## Classes - [QueryDefinition](https://api.workflowengine.io/sqlite/OptimaJet.Workflow.SQLite.Models/QueryDefinition/) Represents a parameterized SQL query consisting of the command text and its associated parameters. - [WorkflowForm](https://api.workflowengine.io/sqlite/OptimaJet.Workflow.SQLite.Models/WorkflowForm/) Database object for workflow form storage and versioning operations. - [WorkflowRuntime](https://api.workflowengine.io/sqlite/OptimaJet.Workflow.SQLite.Models/WorkflowRuntime/) Database object for workflow runtime status and multi-server coordination operations. - [WorkflowSync](https://api.workflowengine.io/sqlite/OptimaJet.Workflow.SQLite.Models/WorkflowSync/) Database object for workflow synchronization lock operations.