Astah System SafetyChange Vision, Inc.
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PHA-PROSphera
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Related Products
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About
Astah System Safety is a model-based safety analysis tool for safety-critical systems, developed by Change Vision, Inc. It combines SysML modeling with STAMP/STPA hazard analysis, GSN (Goal Structuring Notation) assurance cases, ASAM SCDL, and UAF in one tool.
Safety analyses are linked to the system model, so control structures, hazards, and safety arguments stay traceable to requirements and architecture. It is used by safety engineers in automotive, aerospace, and embedded systems, including safety-case work for standards such as ISO 26262.
AI Chat Copilot works with your own API key for OpenAI, Azure OpenAI, Claude, Gemini, or an OpenAI-compatible service, and a local MCP server connects external AI agents to your models. Models can be exchanged through XMI and with Cameo Systems Modeler.
Astah System Safety runs on Windows and macOS. FTA and FMEA are not included. A 40-day free trial is available.
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About
Risks are inherent in asset-intensive, high-hazard facilities, and especially where the risk data set is vast with process safety risk spread across the organization. It’s difficult to standardize and assess all the sources of risk to support resource-intensive facilities.
Sphera’s PHA-Pro offers a framework, configurable methodologies and risk assessment workflows to help organizations standardize and record risk assessment data and ensure proper controls are in place.
Our PHA-Pro software is the most recognized and respected hazard identification and risk assessment tool for strengthening the risk assessment process. It helps identify, assess and control the impact of process-related risk. And Our expert facilitators have extensive experience performing risk assessments based on any methodology, including:
HAZOP, What/If
FMEA, FMECA
PHA revalidation
Workplace Job Safety Analysis (JSA)
Layers of Protection Analysis (LOPA) and Safety Integrity Levels (SIL)
SVA
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Platforms Supported
Windows
Supported
Mac
Supported
Linux
Not Supported
Cloud
Not Supported
On-Premises
Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Safety engineers and systems engineers in automotive, aerospace, and embedded systems
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Audience
Companies that deal with hazard identification and risk assessment (HIRA) and want to reduce the potential for an unplanned event
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Not Supported
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Screenshots and VideosNo images available
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Screenshots and Videos |
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Pricing
$550 per year
Free Version
Not Supported
Free Trial
Supported
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationChange Vision, Inc.
Founded: 2006
Japan
astah.net/products/astah-system-safety/
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Company InformationSphera
Founded: 1978
United States
sphera.com/pha-pro-software/
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Integrations
SpheraCloud
Not Supported
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