Challenges

For complex systems such as nuclear and defence, the urbanisation and design of information systems (IS) have become strategic issues, just like the physical infrastructure itself. The challenge of IS urbanisation is tomeet business needs while addressing the requirements of energy and defence.​

Enjeux

For complex systems such as nuclear and defence, the urbanisation and design of information systems (IS) have become strategic issues, just like the physical infrastructure itself. The challenge of IS urbanisation is tomeet business needs while addressing the requirements of energy and defence.​

Our offer

Our approach to information system urbanisation (IS scoping phase) is to place the user at the centre of the project, starting with their needs and business processes in order to ensure a digital continuity for users, an optimised process and data control. ​

Urbanisation: providing an overall structure, organising the information system ​

  • UNDERSTANDING THE BUSINESS SYSTEM AND STRATEGIC ISSUES​
    Defining the scope of missions, organisation, regulatory constraints, safety, security and sovereignty issues, etc.
  • MAPPING OF THE EXISTING SITUATION
    Mapping of applications, data, flows, infrastructure, security zones, dependencies, etc.
  • DEFINITION OF URBANISATION PRINCIPLES​
    Decoupling between domains, IT/OT separation, common reference frameworks, security by design, sovereignty of critical components, data traceability, etc.
  • DIVISION INTO DOMAINS AND ZONES​
    Structure the target logical architecture by dividing functional domains, security zones, layers, etc.
  • DEFINITION OF THE TARGET ARCHITECTURE​
    Structure the IS into large coherent blocks, define the roles of the building blocks, the modes of communication and interaction, ​and the non-negotiable rules.

Assystem's business expertise enables us to place the user at the heart of urbanisation, thereby avoiding the pitfalls of anoverly "tool/technical" approach. 

Our approach focuses on integrating the 4 key dimensions of a successful transformation:
PEOPLE (skills/organisation), PROCESSES, DATA and TOOLS.

Design: designing systems, applications and flows​

In critical infrastructures, the link between urbanisation and design is what guarantees the security, sustainability and scalability of the information system.​

  • EXPRESSION OF NEEDS AND REQUIREMENTS​
    Business needs, regulatory, safety, security and availability requirements, for integration into the existing information system​
  • FUNCTIONAL ANALYSIS​
    Functional specification of processes and software requirements, assistance with selecting integrators, functional acceptance testing, etc.
  • FUNCTIONAL AND APPLICATION ARCHITECTURE​
    Definition of internal components, their interactions, data flow interfaces, etc.
  • TECHNICAL ARCHITECTURE​
    Choice of technologies, hosting, networks, security, monitoring and backup systems, etc. ​
  • DATA DESIGN​
    Design of the IS backbone: data models, repositories, quality rules, traceability, information lifecycle, etc.
  • SECURITY AND SAFETY BY DESIGN​
    Identity and access management, encryption, network partitioning, etc.
  • VALIDATION, QUALIFICATION AND INTEGRATION​
    Functional testing, load testing, security testing, urbanisation compliance verification ​

Our references

Revamping of the RJH project’s Information System​

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All our references

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