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Expertise 03

Information systems architecture

Solid foundations for systems that evolve without becoming fragile.

An information system is built up in successive layers. Without an overall vision, each new project adds complexity, dependencies and risks.

Coality Consulting designs lean, explicit architectures: every component has a role, every exchange is under control, every choice is justified.

Scope

Our areas of work

  1. 01

    Software architecture

    Breakdown into modules, clear responsibilities, interface contracts, patterns suited to the size of the project.

  2. 02

    Application architecture

    How applications relate to one another, data flows, master data and integration points.

  3. 03

    Cloud architecture

    Hosting matched to real needs, from dedicated servers to the public cloud, without oversizing.

  4. 04

    Systems architecture

    Servers, containers, networking, backups, monitoring: the infrastructure that runs your applications.

  5. 05

    Integration and interoperability

    APIs, file exchanges, message queues: getting heterogeneous systems to communicate reliably.

  6. 06

    Application modernisation

    Evolving existing systems step by step, without risky rewrites or service disruption.

  7. 07

    Performance and scalability

    Measure before optimising, size for actual load, plan for growth.

  8. 08

    Reliability and security by design

    Least privilege, defence in depth, secrets management, logging and recovery planning built in from the start.

Our standard

Security is not a layer added at the end

The architectures we propose build in access control, secret encryption, input validation, logging and restore capability from the design stage.

Every significant decision is recorded with its reasons and alternatives, so that the architecture remains understandable to those who will keep it running.

Example technologies — Linux, Docker, Apache, PostgreSQL, API architectures, automated monitoring and backups.

An architecture to design or to evolve?

Describe your context and objectives: we will get back to you to discuss them and identify the right approach.

Let's talk about your project