| Class | Description | |
|---|---|---|
 | AttachedDocument | Represents Attached document in HpD. |
| CableDrawing | Represents a Cable Drawing in HpD. |
| CableUnitInfo | An object which holds basic info about a cable unit and its document. Used for example to select cable units for cable drawing derivation. |
| ColumnDescription | Description of the column in ReportData table. Can be used for indexing. |
| DerivationSource | Represents info about Harness or Cable Unit |
| Designer | Base class for document which contains designer (workspace, workdesk). |
| Document | Represents HpD document. Base class for individual documents. |
| Drawing2D | Base class for nailboard and cable drawing classes. Base class for nailboard and cable drawing classes. |
| ElectricalConfigurationInfo | Holds basic information about electrical configuration. |
| EntityInfo | Base class for classes that hold basic information about HpD objects. Used for selecting display configurations etc. |
| GraphicDocument | Document with graphics. |
| Nailboard | Represents HpD Nailboard. |
| ObjectInfo | Base class for classes that hold basic info about a HpD object and its document. Used for example to select Harnesses/CableUnits for Nailboard/Cable Drawing derivation. |
| Project | Represents a HpD project. |
| ProjectEntity | Basic API project entity with common properties. |
| Report | Represents HpD Report. |
| ReportType | Represents a type of a report. |
| Revision | Represents document's revision. |
| RevisionableDocument | Base class for HpD documents which can be revisioned. |
| Variant | Represents HpD Variant. |
| WireHarnessInfo | Object that holds basic info about a harness and it's document. Used e.g. for selecting harnesses for nailboard derivation (Variant.CreateNailboard). |
| Workdesk | Represents HpD workdesk. |
| Workspace | Represents HpD workspace. |
