Source: Blue Origin LLC ( Charles F Radley)
RAAML claims to implement STPA, but some important elements are missing.
In Step-1 of the STPA process (in the 2018 Leveson/Thomas STPA Handbook – Figure 2.3) it calls out the need to derive “Safety Constraints” from the Losses. I can find no reference to Safety Constraints in the RAAML.
Furthermore the RAAML does not provide any linkage from Losses to Hazards, which is expected in the Handbook.
Reported: RAAML 1.0b2 — Thu, 3 Nov 2022 13:46 GMT
Updated: Thu, 3 Nov 2022 17:37 GMT
RAAML11 — STPA is not properly implemented
- Key: RAAML11-15
- OMG Task Force: Risk Analysis and Assessment Modeling Language (RAAML) 1.1 RTF