| Name | Description | Type | Package | Framework |
| CoCleanable | Indicates that an element can be marked dirty. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoContainer | Creates a dynamic sub-element. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoDrawController | The class implementing CoDrawHanlder capable of conditional drawing of the element. | Class | com.ptc.core.ca.co.client.element | WindChill |
| CoDrawHandler | When conceptual element requires custom drawing, a draw handler can be specified in the configuration specification for the element. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoDynamic | The element implemented CoDynamic is said to be dynamic element. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoElement | CoElement is a class all conceptual elements extend from. | Class | com.ptc.core.ca.co.client.element | WindChill |
| CoElementEventPlace | Class | com.ptc.core.ca.co.client.element | WindChill | |
| CoElementEventType | Class | com.ptc.core.ca.co.client.element | WindChill | |
| CoElementEventUtils | Class | com.ptc.core.ca.co.client.element | WindChill | |
| CoElementHandler | The base class for all element handlers. | Class | com.ptc.core.ca.co.client.element | WindChill |
| CoElementMode | An instance of CoElementMode class represents a mode of a conceptual element. | Class | com.ptc.core.ca.co.client.element | WindChill |
| CoElementNotFoundException | See Also:Serialized FormMethods inherited from class wt. | Class | com.ptc.core.ca.co.client.element | WindChill |
| CoElementType | An instance of CoElementType class represents a type of a conceptual element. | Class | com.ptc.core.ca.co.client.element | WindChill |
| CoElementUtils | CoElementUtils class provides a variety of methods to manipulate element and their models. | Class | com.ptc.core.ca.co.client.element | WindChill |
| CoElementVisitStatus | The class define available statuses of the execusion of the visit method of a visitor. | Class | com.ptc.core.ca.co.client.element | WindChill |
| CoElementVisitType | Use the instance of this class to construct visitor type. | Class | com.ptc.core.ca.co.client.element | WindChill |
| CoElementVisitor | The interface every visitor needs to implement. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoFacePlateHolder | Elements that can have label, tool tip, and image implement this interface. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoFacePlateHolderModel | The model of the element implementing CoFacePlateHolder interface must implement this interface. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoFacePlateType | The class defining types of conceptual face plates. | Class | com.ptc.core.ca.co.client.element | WindChill |
| CoFooterHolder | Elements that can have a footer implement this interface. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoFooterHolderModel | The model of the element implementing CoFooterHolder interface must implement this interface. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoHandlerData | All handler is given the parameter implementing ColHandlerData Supported API: true | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoInstanceHolder | The interface the element implements when it represents I*E element. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoInstanceHolderModel | The model of the element that represents I*E element must implement this Supported API: true | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoInstanceListHolder | The interface the element implements when it represents a list of I*E Supported API: true | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoInstanceListHolderModel | The model of the element that represents a list of I*E elements must implement this interface. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoModel | CoModel is the interface every model of the element implements. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoModelDriven | CoModelDriven is the interface every element that has a Supported API: true | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoModelHandler | The interface all model handlers must implement. | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoModelHandlerData | Model handler is given the parameter implementing CoModelHandlerData Supported API: true | Interface | com.ptc.core.ca.co.client.element | WindChill |
| CoRenderHandler | When conceptual element requires custom rendering, a render handler can be specified in the configuration specification for the element. | Interface | com.ptc.core.ca.co.client.element | WindChill |