Change impact

Pick something that might change and see everything that would have to be re-examined, with the path that made it relevant. The traversal is the same one the database performs with a recursive query.

SRS section 12, change impact analysis

Origin

What is changing.

Canonical attributes

Configured items

Requirements

Engineering objects

Nodes reached

Requiring rework

Gates re-opened

Impact of a change to Rated operational voltage (Ue)

Breadth first from the origin. Depth is how many hops away the node sits.

Depth	Kind	Node	Detail	Reached because it	Consequence
1	canonical fact	Rated operational voltage (Ue) = 400	Canonical since 2026-05-12T16:00:00.000Z	is canonised as	rework
1	engineering object	MSB-01-Q1	Incoming air circuit breaker	is carried by	rework
1	engineering object	MSB-01-BB1	Main horizontal busbar	is carried by	rework
1	requirement	SPC 3.2 a	The main busbar system shall be rated 400 V, three phase, four wire, 50 Hz.	is required by	rework
2	artifact	GSPE-P26045-01-E-SPC-001	Technical specification, LV switchgear and controlgear assemblies	is required by then cites	re-read
2	artifact	GSPE-P26045-01-E-SLD-001	Single line diagram, main switchboard MSB-01	is carried by then is depicted on	rework
2	baseline	Requirement baseline R1	REQUIREMENT baseline	is canonised as then is frozen inside	rework
2	engineering object	MSB-01-PE	Main protective earth bar	is carried by then earthed to	rework
2	engineering object	MSB-01-Q11	Feeder to motor control centre MCC-01	is carried by then feeds	rework
2	engineering object	MSB-01-Q12	Feeder to auxiliary distribution board DB-EH-01	is carried by then feeds	rework
2	engineering object	MSB-01-PM1	Multifunction power meter	is carried by then monitored by	rework
3	artifact revision	Rev 02	Clarification round two. Ambient temperature raised to 65 C in clause 3.6.	is required by then cites then is currently at	rework
3	artifact revision	Rev 03	Incomer protection settings updated after the coordination study.	is carried by then is depicted on then is currently at	rework
3	engineering object	MCC-01-BB1	Motor control centre busbar	is carried by then feeds then feeds	rework
3	engineering object	DB-EH-01-BB1	Auxiliary board busbar	is carried by then feeds then feeds	rework
4	baseline	Manufacturing baseline M1	MANUFACTURING baseline	is carried by then is depicted on then is currently at then is frozen inside	rework

The distinction between rework and re-read matters. A change that reaches a frozen baseline or an issued drawing costs money; a change that only reaches an ontology definition costs a read. Reporting both as impact would make the analysis useless.