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Astah GSN is a design tool for documenting arguments using Goal Structuring Notation (GSN). GSN is a graphical notation used to explicitly document and visualize the individual elements of arguments including goals, solutions, contexts and relationships. Astah GSN can display critical properties of systems and services and can be effectively used for Safety Cases.
Change Vision is a software development company based in Tokyo, Japan. By combining "MIERUKA" (A visualization method) with Agile software development principles and practices, they create innovative products and services.
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