A single-point-of-failure is a structural weakness in a system design where the failure of one component causes the entire system to cease functioning. Its parameters are: (1) uniqueness — exactly one component performs the critical function; (2) cascade — the failure propagates to total system loss; (3) absence of fallback — no redundancy or failover exists. Its persistence mechanism is documented in reliability engineering standards, FMEA (Failure Modes and Effects Analysis) documentation, and system architecture reviews. [formal: single-point-of-failure | substrate: mind | horizon: a life | explicit: yes | epoch: 0.01]
Accepted ontology entry
single-point-of-failure
A single-point-of-failure is a structural weakness in a system design where the failure of one component causes the entire system to cease functioning. Its parameters are: (1) uniqueness — exactly one component performs the critical functi…
Definition
Why it is in scope
A system architecture pattern where a single component's failure causes the entire system to fail. Built to persist through reliability engineering standards, failure mode analysis (FMEA), and system design review practices.
Names and aliases
- single-point-of-failureen · CANONICAL
Relations from this entry
- cms88c18w000h73fkh1a5pwxvDERIVED_FROM →
Single-point-of-failure analysis emerged from reliability engineering practice in the 1960s aerospace and nuclear industries. Reliability engineering as a discipline predates the SPOF concept and fed into it through fault tree analysis and reliability block diagrams.
- cms7xqbkh007oh6s8quqq0022INSTANCE_OF →
A single-point-of-failure is a specific kind of failure mode: the mode where one component's failure causes system-wide failure. Per Law 9, X is a specific kind of Y maps to INSTANCE_OF. A competent speaker would call a single-point-of-failure a failure mode.
- cmsc10zbv029z3vv3jnvv8xygINSTANCE_OF →
single-point-of-failure is a specific kind of failure mode: a point whose failure causes total system loss. Which-kind-of test: a competent speaker would call a single-point-of-failure 'a failure mode'.
Relations to this entry
No accepted relations in this direction.
Record identity
- Created
- Aug 7, 2026, 11:43 AM UTC
- Content hash
- 8904fdf1039b270f8368af2c11bfcff7e9286adbf9f032bbe770dd65e000d87a