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Nuclear instrumentation and control with licensing‑ready traceability
IEC 61513 and IEC 60880 evidence from one connected IBM Engineering Lifecycle Management toolchain, set up by consultants who work with safety-critical engineering programs.
The nuclear sector
Reactor protection is now defined in software
The sector covers reactor vendors, utilities and plant operators, engineering companies, and the suppliers of instrumentation and control systems, components and software. New plants are licensed for 60 years of operation, built by international consortia and supervised by national regulators within the IAEA safety framework. Poland's first nuclear power program, based on the AP1000 design, brings this work to Polish industry.
More and more of what protects a plant is defined in software and programmable electronics. Every safety function has to be specified, classified, verified and shown to the regulator, and the evidence has to stay valid for the life of the plant.
ShiftNew build in new countries
New programs, including Poland's, need a licensing basis, a supply chain and qualified engineering processes built from the start.
ShiftDigital instrumentation and control
Analog protection systems are replaced by software-based and FPGA-based platforms, which IEC 60880 and IEC 62566 have to cover.
ShiftSmall modular reactors
SMR vendors aim for standard designs licensed in several countries, so one set of requirements has to serve several regulators.
ShiftLong-term operation
Existing plants extend their operating life, and every modernization of control systems needs the same evidence as the original design.
Engineering challenges
What this means for software and systems engineering
Licensing evidence across the life cycle
IEC 61513 and IEC 60880 ask for documented evidence at every phase, from plant safety requirements to system validation.
Safety classification
Functions and systems are categorized by safety importance, and the category drives the requirements and the depth of verification for each one.
Independence and defence in depth
Protection, control and diverse backup systems have to stay independent, and the requirements must show it.
Vendors, utilities and the regulator
Requirements move between the reactor vendor, the control system supplier, the utility and the regulator, in Requirements Interchange Format (ReqIF) or documents, under strict configuration control.
Computer security of the plant
Security of digital control systems has to be specified and verified alongside safety, on isolated networks.
Sixty years of change
A plant is licensed for 60 years. Every design change, obsolescence fix and modification needs the same trace as the original licensing basis.
What the regulator expects
Where nuclear teams lose time before a licensing review


Functions are categorized in the safety analysis, but the class is not an attribute on the system and software requirements that follow from it.


Independent verification produces reports per document. Linking each test and review back to the software requirement is done by hand before submission.


Licensing and security rules keep design data on isolated networks with strict access control per project and supplier.
Compliance map
IEC 61513, IEC 60880 and IEC 62138, mapped to the toolchain
Pick a standard to see what it asks for, and where it lives in your toolchain once we have set it up.

Compliance is achieved by your organization and confirmed by your regulator. Tools hold the evidence; we set them up so the evidence is complete and easy to show.
Capabilities
What your team can do on day one
Baselines for every licensing stage
Freeze a configuration for each licensing submission or design review and compare it with the next one, item by item. The regulator sees exactly what changed and why.
IBM Engineering Lifecycle Management Global Configuration Management
Safety class on every requirement
Category and class attributes flow down the links, so each view shows which requirements need which depth of verification.
IBM Engineering Requirements Management DOORS Next
Architecture linked to requirements
SysML models of the control system architecture link to requirements, showing allocation and independence between systems.
IBM Engineering Systems Design Rhapsody
Independent verification in one place
Reviews, analyses and tests are recorded against each requirement by an independent team with its own permissions.
IBM Engineering Test Management
On-premise and isolated networks
The toolchain runs in your data center or on an isolated network, with access control per project and supplier.
IBM Engineering Lifecycle Management
Licensing documents from live data
Requirement specifications, trace matrices and verification reports are generated from the tools, in your own templates.
IBM Engineering Lifecycle Optimization – Publishing
IBM Engineering Test Management
See every product we implement and support
IBM Engineering Lifecycle Management, HCL and GitLab: licences, set-up, training and support from one team.
All products →
Control system equipment roomHow we set up a nuclear engineering toolchain
We start from your licensing basis and the standards your regulator applies, define artifact types, safety class attributes and link rules, and set up IBM Engineering Lifecycle Management on your own infrastructure. Existing specifications are migrated and the team is trained on real project data.
Learn more
Training, articles and services

Introduction to IBM Engineering Requirements Management DOORS Next
2 days · remote or on siteWhat’s new in IBM Engineering Lifecycle Management 7.1
Article · 28 min
IBM Engineering Lifecycle Management deployment
Installation, configuration, migrationFAQ
Questions nuclear teams ask us
Do IBM Engineering Requirements Management DOORS Next and IBM Engineering Test Management need to be qualified under IEC 60880?
It depends on how their output is used. IEC 60880 expects software tools to be selected and assessed according to how much an error in the tool could affect the safety software. Requirements and test management tools do not generate code, and their output is checked in independent reviews, which keeps the qualification effort low. We document each use case, the tool version and configuration, and the checks that cover tool errors, as input to your software quality plan.
How do we exchange requirements with the reactor vendor, suppliers and the regulator?
Through ReqIF with vendors and suppliers whose tools support it, and through controlled documents for the regulator. Each partner gets only the modules and attributes it is allowed to see. Supplier answers come back into the same requirements, compared with the previous delivery, so deviations are visible before they are accepted. Documents for the regulator are generated from a baseline with IBM Engineering Lifecycle Optimization – Publishing, so the submission and the tool data always match.
How do we keep the licensing basis stable while the design keeps changing?
With baselines and streams in IBM Engineering Lifecycle Management Global Configuration Management. The licensing basis submitted to the regulator is a baseline that does not change. Design work continues in a stream, and each modification is a change request linked to the items it affects. Before the next submission, compare views show exactly what changed against the licensed baseline, item by item, which is the starting point for the impact analysis the regulator expects.
Our plant and system specifications are in IBM Engineering Requirements Management DOORS (9.x). How do we move without losing the licensing record?
Not all at once. We inventory modules, attributes, link types and DXL scripts first. When a project moves, modules move with their original IDs and links, and every baseline used in a licensing submission is kept as a baseline in IBM Engineering Requirements Management DOORS Next, so earlier submissions stay reproducible. Most DXL scripts become configuration, views or attribute rules. Projects near a licensing milestone can stay on IBM Engineering Requirements Management DOORS (9.x) until it passes.
Our software teams use Atlassian Jira and GitLab. Can they keep them for safety software?
For lower categories, often yes. Atlassian Jira issues and GitLab merge requests link to the software requirements they implement, so the trace comes from the tools. For category A software many teams prefer IBM Engineering Workflow Management, because change control, approvals and the link to requirements sit in one controlled system. We look at your categories and quality plan and set the boundary with you.
How do computer security requirements fit next to safety requirements?
In the same project, with their own artifact types and link rules. Security requirements for digital control systems link to the same systems, software requirements and tests as safety requirements, and the security zone of each system is an attribute. One change then triggers both safety and security impact analysis. Access control per project and supplier keeps sensitive security details visible only to the people who need them.
Ready-made widgets for IBM DOORS Next
Add them to the ELM Mini Dashboard and hand repetitive requirements work over to them. Each one previews its changes first.
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Content qualityClean text and glossary linksStyle Cleaner, Link Checker and more


Links and traceabilityFix, move and inspect linksLink Remover, Module To Base Links and more


Module structureBuild and repair module hierarchyModule Fill, Module Explorer 2.0 and more


Configuration and governanceBaselines, data models and auditsBaseline Archiver, Compare Data Models and more

Reporting and publishingCharts, maps and publishingPublishing URLs, Module Insights and more- See all widgetsScreenshots and details for every widget
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