Assurance case - Argevide

NOR-STA is a web application
for assurance case management

develop arguments and share with others,
integrate assurance case with evidence in online repositories,
create GSN diagrams,
make assessment and communicate the results,
manage argument modules and use templates,
report the results online,
integrate the assurance process with other tools.

Develop GSN assurance cases

The Goal Structuring Notation (GSN) is the most popular graphical notation for assurance cases. In NOR-STA you can develop GSN assurance cases and generate argument and architecture view diagrams. NOR-STA implements Core GSN and partially Modular Extension and Argument Pattern Extension.

NOR-STA argument metamodel complies with OMG SACM and ISO/IEC 15026.

read Introduction to Assurance Cases

Manage complex modular arguments

Divide large arguments into modules and manage them separately. Argument modules can be bound with interfaces and the assessment of supporting modules will be automatically reported to high-level argument modules.

Modules are also an effective tool to distribute work in teams and organizations. For each module you can individually assign permissions for users.

Integrate your arguments with evidence

The argument needs to refer to evidence produced in the system life cycle which is stored in some repositories, usually in version control systems.

NOR-STA provides ready to use integration with SharePoint, Confluence and Jira. Integration with other types of repositories can be provided on request.

NOR-STA monitors changes of evidence in integrated repositories, reports them and enables systematic change management.

Argument assessment

Integrated argument assessment functions
Dedicated roles for reviewers and third-party assessors
Sharing comments to argument elements
Control of argument changes and the need for reassessment
Assessment methods include uncertainty, scoring and others
Automatic aggregation of assessment results
Reporting assessment results
Control of negative and missing assessments

Reporting progress and results

Assessment visualization with a color scale
Reports to MS Excel, Word, PDF and HTML
Custom report templates fed with XML data
describing the argument and assessment results
Custom report content: GSN diagrams, assessment,
charts, links to evidence
Programmable HTML reports with XSL scripts

Users and permissions management

Role-based access control (RBAC)
Predefined roles like manager, editor, auditor, reader
Roles granted at the level of folders
or individual argumentation modules
Customizable user roles
with over 40 permissions to specific actions

Reuse with templates

Create assurance cases based on templates
Use parametrized templates for variants of your system or products
Update arguments to new template versions
Use multiple levels of templates

Change tracking

Full change history and project log
Monitor and react to changes of the argument or evidence
View snapshots of the argument for a given day
Restore the argument for any date from a snapshot

System assurance monitoring

Assurance case may be fed with live data from any evidence management system or production system monitoring. Data can be automatically transferred into an argument and can be used to:

update the evidence data,
update the assessment,
deactivate or activate argument sections,
modify argument structure.

Integration with SharePoint, Atlassian Jira and Confluence
Custom integration through NOR-STA API (web services)
User authentication with external identity providers:
ADFS, Azure AD
XML data import and export

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NOR-STA is a web applicationfor assurance case management