Business process GSN (Goal Structuring Notation) design tool.
Astah GSN is a design tool to document arguments using the GSN (Goal Structuring Notation) which is a graphical argumentation notation to explicitly document the individual elements of arguments such as goals, solutions, contexts and its relationships and visualize the structure. Astah GSN helps provide assurance of critical properties of systems, services, organization's safety and security and can be effectively used for Safety Cases.
What is GSN?
GSN (Goal Structuring Notation) is a graphical notation developed at the University of York for specifying safety cases for safety critical systems. Several standards such as ISO26262 (Automotive E/E systems) and IEC62278 (Railway) mandate the use of safety cases and GSN supports their argumentation structures and its relation to evidences in a comprehensible yet compelling form.