PREMIS Assurance Case Tool
Develop GSN assurance cases
You can develop modular GSN (Goal Structuring Notation) arguments online using PREMIS assurance case tool. PREMIS supports fully Core GSN and partially supports Modular and Argument Pattern Extensions.
PREMIS argument metamodel is compliant with OMG SACM
and ISO/IEC 15026.
Manage complex modular arguments
Large arguments can be split into modules, which can then be managed separately. They are an effective tool for distributing work within teams and organizations. In PREMIS, you can assign individual user rights for each module.
Argument modules can be bound with interfaces and the assessment of supporting modules is automatically reported to higher-level argument modules. PREMIS implements three types of argument interfaces: away elements, supported by module and supported by contract.
Integrate your arguments
with external evidence
Assurance case arguments usually refer to the evidence produced in the life cycle of the system, which is stored in repositories, often in version control systems.
PREMIS provides out-of-the-box integration with SharePoint, Confluence and Jira Cloud. Integration with other types
of repositories can be provided on request.
PREMIS monitors and reports changes of evidence in integrated repositories, enabling systematic change management.
Perform reviews and assessments
Assurance case reviews can be performed
at any stage of the argument development process.
PREMIS supports self-assessment and third-party reviews.
PREMIS controls which parts of the argument need a review, and when updated sections of the argument should be reviewed again.
Depending on the type of the argument you can use simple conformance assessment methods or advanced methods which support uncertainty, such as Dempster-Shafer. All results of the reviews can be presented visually using colours.
Report on progress and results
You can produce assurance case reports to MS Word and Excel,
PDF and HTML. Reports can be customized with templates that produce the content based on XML data describing the argument.
Argument status and assessment results are presented online
and in reports using a colour scale.
Reports can present assurance cases with GSN diagrams
or conformance assessments with charts. All reports can support internal links for easy navigation of large assurance cases and links
to evidence in online repositories
Build teams, collaborate
and manage user rights
PREMIS is an environment for all forms of collaboration
in the development of assurance cases. You can work with
your team, initiate third party assessments or invite suppliers.
You can manage user access rights for each assurance case project or a group of projects.
PREMIS implements Role-based access control (RBAC) for all actions on assurance cases. You can use predefined roles such as manager, editor, auditor and viewer, or define your own roles based on over 40 permissions.
Reuse with templates
Templates in PREMIS enable the reuse arguments
and proven patterns. You can develop libraries
of templates. When you have a new template version
you decide if you want existing arguments to be updated to new version. The synchronization mechanism allows
to build a pipeline of draft templates and approved template versions.
Template parameters allow to specify argument objects and control argument branched to produce argument structure specific for the context of your system.
Track changes and use version control
PREMIS maintains a complete change history of all assurance cases. You can view any version of the argument since its creation.
When necessary, you can restore or make a copy of any version
of the argument.
PREMIS also checks if your reviews and assessments are up to date. The tool alerts you and points out the changes that you can review the modified parts of the argument again.
Make the argument dynamic
with live data input
An assurance case may be fed with live data from the evidence management system or the system monitoring tools, including
Safety or Reliability Performance Indicators (SPI / RPI).
Data can be automatically transferred into the argument
and it can be used to update the evidence data, assessment
and even the argument structure.
PREMIS API allows for custom integration of any development
or operational data with the assurance case argument.
Integrate with other systems
PREMIS API allows for custom integration with any systems.
User authentication can be integrated with Entra ID, Azure AD B2C, P1 (Platform One) or other identity providers
PREMIS software installation is easy and it’s configuration satisfies high security requirements. You can deploy the tool
on-premises (VM, Docker, Kubernetes, Istio) or in cloud environments such as AWS, Azure, 2F Game Warden.
Upcoming training:
24 September 2025
Best practices for assurance case development
Assurance cases are used in many domains to manage
and demonstrate system safety, security and compliance. The right understanding of the argument structure is essential for its effective use. The main goal of the course
is to provide skills to use proper and effective argument structures, develop defensible arguments, and review assurance case quality.
The training will help you improve the quality of your assurance cases.