On March 30th 2019, Information-technology Promotion Agency, Japan(IPA) released the first edition of their STAMP/STPA modeling tool called “STAMP Workbench” and we’re pleased and proud to announce that this tool uses Astah as its platform.
Also available as Astah System Safety!
So what is STAMP and STPA?
STAMP (Systems-Theoretic Accident Model and Processes) is a new accident causality model based on systems theory and systems thinking developed by Prof. Nancy Leveson at the Massachusetts Institute of Technology. STAMP integrates into engineering analysis the causal factors in complex systems such as software, new technology and safety culture.

STPA Handbook
STPA (Systems-Theoretic Process Analysis) is a powerful new hazard/cybersecurity analysis technique based on STAMP. You can download STPA Handbooks (available both in English and Japanese) from MIT PSAS Site.


First edition of STAMP/STPA tool, and it’s free
IPA has been conducting their deep research of STAMP and STPA, survey of safety analysis and evaluation processes in Japanese software development industries and finally released their first edition of the tool, not only for researchers but anyone who’d like to implement STAMP/STPA in actual industries.
So they have opened the door for Japanese industries and gave us a tool. If you are familiar with Astah already, you will pick it up quickly. Even if you are not, a manual will help you start out.

Control Structure Diagram in STAMP Workbench
Let’s start now!
Download STAMP Workbench:
https://www.ipa.go.jp/english/sec/reports/20180330.html
STAMP Workbench Manual:
https://www.ipa.go.jp/sec/stamp_wb/manual/index.html
Now available as Astah System Safety
Now there is a commercial version – Astah System Safety.
Typo — STPA spelled wrong in very large letters in middle of page. https://astahblog.com/2018/04/09/stamp-workbench-by-ipa/
Fixed. Thank you!
– Satomi
Where do I report bugs? I have tried a few links but no responses. The bug is relatively serious as it breaks diagrams that have nested components. Makes the tool less useful for managing complex designs and so likely less useful in real applications. I have warned Dr Johnson at MIT to avoid assurance problems on real projects. The tool might be useful for training in STPA as long as nested designs were avoided.
Hi Asterion,
I found their contact email address in the middle of this page under [CONTACT US about STAMP Workbench].
https://www.ipa.go.jp/english/sec/reports/20180330.html
ikc-stamp-workbench@ipa.go.jp
We also launched our own STAMP/STPA tool called “Astah System Safety”.
https://astah.net/products/astah-system-safety/
I’d be happy to issue a trial license if you’re interested.
– Satomi (satomi@astah.net)
Hello Satomi,
I find Astahs Safety System STPA module vey similar to the STAMP Workbench. There does not seem to be much difference between the two. Do we expect any update in near future?
Thank you ,
Naseef
Hi Naseef,
Yes, actually we plan to release the update of Astah System Safety next month.
I will inform you when the update is available!
– Satomi
Hi Asterion,
Did you get a chance to report bugs? If not yet, I’d be happy to receive it and pass it to the IPA.
So please shoot me a note to satomi@astah.net when you read this!
Thanks!
Satomi