Any object which wants to follow the progression of any instance of
This class gives a short description of the occurred error (if any) during a job execution.
An instance of this class represents the current execution phase of a given job, and it describes the transitions between the different phases.
An instance of this class is a thread dedicated to a job execution.
This class gives a short description (mainly an ID and a URL) of a job result.
This class defines the methods that an object of the UWS pattern must implement to be written in any format (by default, XML ; see
The possible types of an UWS error.
A job is treated as a state machine where the Execution Phase is the job state.