Annotations for protocol flow implementing transactions of a distributed ledger system

A method performed by a second computing system for launching execution of a protocol flow, the method comprising:

• accessing mappings of initiating protocol flows to initiated protocol flows;
• receiving from a first computing system an initiate message indicating that execution of a first protocol flow is being launched;
• and
• when the mappings include a mapping from the first protocol flow to a second protocol flow, launching execution of the second protocol flow.

A method performed by a first computing system for scheduling execution of a protocol flow, the method comprising:

• receiving a scheduling request to schedule execution of the protocol flow;
• when metadata of the protocol flow indicates that execution of the protocol flow can be scheduled, scheduling execution of the protocol flow in accordance with the scheduling request;
• and
• when metadata of the protocol flow indicates that execution of the protocol flow cannot be scheduled, suppressing the scheduling of execution of the protocol flow.

A method performed by a computing system for launching execution of a protocol flow, the method comprising:

• receiving from another computing system a launch request to launch execution of the protocol flow as an initiating protocol flow;
• when metadata of the protocol flow indicates that execution of the protocol flow can be launched from another computing system, launching execution of the protocol flow;
• and
• when metadata of the protocol flow indicates that execution of the protocol flow cannot be launched from another computing system, suppressing the launching of execution of the protocol flow.

A computing system of a first node for launching execution of a protocol flow, the computing system comprising:

• one or more computer-readable storage mediums storing computer-executable instructions that when executed control the computing system to:
• determine whether metadata of the protocol flow indicates that the protocol flow is an initiating protocol flow;
• when the protocol flow is an initiating protocol flow, send to a computing system of a second node an initiate message indicating that execution of the protocol flow is being launched;
• and
• launch execution of the protocol flow;
• and
• one or more processors for executing the computer-executable instructions stored in the one or more computer-readable storage mediums.

A computing system of a node for launching execution of a protocol flow, the computing system comprising:

• one or more computer-readable storage mediums storing computer-executable instructions that when executed control the computing system to:
• receive from a computing system of another node an initiate message indicating that execution of an initiating protocol flow is being launched;
• and
• when the initiating protocol flow is mapped to an initiated protocol flow, launch execution of the initiated protocol flow;
• and
• one or more processors for executing the computer-executable instructions stored in the one or more computer-readable storage mediums.