Activity	Generated By	Attributes NOTE: Timestamp, Description, and Annotation are common to all activities
ServiceInitialized	Service	Service ID, isWorkflow
ServiceTerminated	Service	Service ID
InvokingService	Client	Client Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Service Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Request Message,
ServiceInvoked	Service	Service Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Client Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Request Message
InvokingService [Succeeded | Failed]	Client	Client Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Service Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, [ — | Failure Trace]
DataTransfer	Service	Service Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Data ID, Source URL, Target URL, Size, Duration
Computation	Service	Service Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Application, Duration
DataProduced	Service	Service Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Data Product+ {Data ID, URL+, Size, Timestamp}
DataConsumed	Service	Service Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Data Product+ {Data ID, URL+, Size, Timestamp}
SendingResponse	Service	Service Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Client Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Response Message {Result | Fault}
ReceivedResponse	Client	Client Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Service Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Response Message {Result | Fault}
SendingResponse [Succeeded | Failed]	Service	Service Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, Client Entity ID {Service ID, Workflow ID, Workflow Node ID, Logical Timestamp}, [ — | Failure Trace]
List of provenance activities, the source of the activity, and the attributes present in each. The activities are listed in the order they are typically generated in. Attributes that are underlined are required. Those in italics are complex attributes composed of those in curly braces. A ‘+’ after an attribute represents an array, while a choice is denoted by a ‘|’.