In Nintex Workflow 2013, Nintex workflows encapsulate SharePoint 2013 workflows to provide additional metadata and Nintex-specific functionality, such as versioning, interactive development, and reporting. For more information about Nintex workflows, see the Nintex Workflow 2013 product documentation
In Nintex Workflow 2013, workflow actions are the fundamental building blocks of Nintex workflows. Workflow actions encapsulate SharePoint workflow activities, adding Nintex-specific functionality such as reporting and the Run Now feature. For more information, see Workflow actions.
The scope and context of a workflow depends primarily upon the SharePoint object to which the workflow is associated. For example, a site workflow can be associated with a SharePoint site collection or SharePoint site, while a list workflow can be associated with a SharePoint list or document library. For more information, see Workflow scope and context.
The appearance and information displayed for a workflow in Nintex Workflow 2013 can change, depending on where and when the workflow is displayed. Nintex Workflow 2013 supports different workflow views, each of which is managed in a workflow action adapter by a separate interface. For more information, see Workflow views.
Nintex workflows support versioning, in that a version number is attached to and automatically managed by Nintex Workflow 2013 when a workflow is saved or published. For more information, see Workflow versions.
You can export workflows to, and save or publish workflows from, NintexWorkflow 2013 export (.nwf) files. For more information, see Export files.
Exporting and importing workflows
Saving and publishing workflows
Web Service Reference