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PASTA

Pragmatic-Automated System Theoretic Process Analysis (PASTA) is a VS Code Extension that provides a textual DSL for System-Theoretic Process Analysis (STPA) and automatically generates diagrams.

Further features are:

  • a textual DSL for Fault Tree Analysis (FTA) with interactive cut set visualization;
  • automatic generation of fault trees based on STPA;
  • automatic generation of LTL formulas based on the Unsafe Control Actions (UCAs) of STPA;
  • automatic generation of a safe-by-construction behavior model based on the automatically generated LTL formulas.

A more detailed explanation of all features can be found here.

Examples can be found in pasta-examples.

Open in GitHub Codespaces

Open in Gitpod

Developing the VS Code extension

The following steps are required to start developing:

  1. Install Node.js and yarn.
  2. Run yarn install in the root folder to install all dependencies.
  3. Run yarn build in the root folder to compile.
  4. Open the respository in VS Code.
  5. Run the "Run PASTA Extension" launch configuration.
  6. A VS Code instance with the STPA-DSL extension should be started.