Diagram 11 Work-block lifecycle

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Structural diagram 11 of 12. Part of the TPM hub.

• KIND: process
• LANGUAGE: Mermaid
• GENERATED FROM: per-UWC schedule log; TPS 5.9.2, 5.9.4
• STATUS: hand-authored at TPS 0.1.0; superseded by TPX at its first build
• SOURCE SHA-256: 3f368714be77efaed56b384ea93c06dd7623d4cb20298f9bd43fdcf30ea9b57a

Rendered live from the source, which is the text equivalent and is shown under the drawing. The key to the shapes is in the panel.

Source (the text equivalent; Mermaid)

%% 11 Work-block lifecycle. process/Mermaid state. Generated from: per-UWC schedule log; TPS 5.9.2, 5.9.4.
stateDiagram-v2
  [*] --> COMMISSIONED : lead writes the assignment (5.8.3)
  COMMISSIONED --> OWNED_BY : assignee starts, local draft carries the block ID (5.9.3)
  OWNED_BY --> LANDED : landing accepted before ETA (5.9.5)
  OWNED_BY --> EXPIRED : server time passes ETA (5.9.4)
  EXPIRED --> COMMISSIONED : recommissioned with a new block ID and back-pointer (5.9.4)
  EXPIRED --> LANDED : post-refusal procedure lands under a new block ID (5.9.7)
  LANDED --> [*]

Text equivalent

A block is COMMISSIONED when the lead writes its assignment (5.8.3), OWNED BY its assignee while the local draft carries its block ID (5.9.3), LANDED when its landing is accepted before ETA (5.9.5), and EXPIRED when server time passes ETA (5.9.4). An expired block is recommissioned with a new block ID and a back-pointer, or lands through the post-refusal procedure (5.9.7).