Engineering knowledge graph

Every entity the project holds and what joins them, with the reason for each edge.

Demonstration project - no figure here describes a real facilityChanges are not saved

Why

Node and edge counts are computed from the project's own records. No edge here was inferred from drawing geometry.

Writes are validated against the engineering rules and then refused, because no database has been configured for this environment.

Documents

Assets

Hierarchy nodes

Requirements

Deliverables

Edges, by what they rest on

Only an edge from a reading is fixable by reprocessing.

Edges by provenance
Edge	Count	Rests on	Fixable by
Document to asset	131	a reading, with a parser and a confidence	reprocessing the document
Asset to hierarchy node	100	a placement somebody recorded	a person changing the placement
Deliverable to requirement	12	a requirement analysis somebody accepted	a person revising the analysis
Deliverable to source document	20	an input checklist somebody satisfied	a person adding or removing an input

One neighbourhood at a time, with the reason for each edge.

Neighbourhood of C-60102
Edge	To	Why
read from	ZRF-SLD-6001	Single Line Diagram - Utilities MCC carries this tag
read from	ZRF-REG-CS-001	Cable Schedule carries this tag
sits in	U-12	physical placement
commissioned in	SYS-12-01	commissioning breakdown
on line	MCC-6001	the "from" field of C-60102 in the cable schedule
on line	M-1201B	the "to" field of C-60102 in the cable schedule

MCC-6001 to M-1201B power cable

Each value as the register holds it.

MCC-6001Stated
Both appear on the same line in a register: the "from" field of C-60102 in the cable schedule
M-1201BStated
Both appear on the same line in a register: the "to" field of C-60102 in the cable schedule

Only what a document states, or two documents imply.

No requirement the project holds names this tag.

Requirements that name this tag.

Machine-read, not verified

Asset

Counts and a neighbourhood, not a cloud

Every asset in the graph is named by a document the project holds.

Connectivity inferred from lines meeting on a drawing. A crossing is not a connection.
Edges between assets that merely appear on the same sheet. Drawing two items together says little.
A confidence on a human decision. A recorded placement is not a reading.