|   | GSF. | 
 Classes
Classes
        | Class | Description | |
|---|---|---|
|   | DataListener | Represents a listener that can receive time-series data in real-time using Sockets. | 
|   | QualityExtensions | Defines extension methods for (and related to) Quality enumeration. | 
|   | TimeTag | Represents a historian time tag as number of seconds from the BaseDate. | 
|   | TimeTagException | Represents an exception related to TimeTag instances. | 
 Interfaces
Interfaces
        | Interface | Description | |
|---|---|---|
|   | IArchive | Defines a repository where time-series data is warehoused by a historian. | 
|   | IDataPoint | Defines time-series data warehoused by a historian. | 
 Enumerations
Enumerations
        | Enumeration | Description | |
|---|---|---|
|   | Quality | Indicates the quality of time-series data. |