Information Systems Architecture & Engineering

Designing your IS.
With sobriety.

25+
Years of field practice
Architecture logicielle Infrastructure Données Organisation IT
Continu
Projects conducted
from scoping to operations
7
Architectural layers
Stratégie Métier Applicatif Exploitation

What field experience shows in IT projects

Complexité
Struggling projects
Empilement
Scope drift
Adhérences
Extended timelines
Evolving an existing information system or structuring a new foundation? We step in to clarify, decouple and implement — from initial assessment to day-to-day operations.
Field-tested engineering, backed by actionable deliverables.
Recurring findings from industry studies (Standish Group, PMI) on IS project complexity.
Interventions

Architecture & Scoping

Support focused on system readability, dependency control, and operational feasibility. View details →

🧭
Stratégie & Gouvernance
Schéma Directeur & Trajectoire SI
Mise à plat de l'existant, clarification des priorités métier et définition d'une feuille de route réaliste sur 12 à 36 mois. L'objectif est d'arbitrer ce qui doit être conservé, simplifié ou remplacé.
↳ Priorisation factuelle des investissements et réduction des chantiers redondants.
🏗️
Performance & FinOps
Lisibilité des Coûts & Arbitrages (FinOps)
Analyse de la structure des coûts d'hébergement, de licences et d'exploitation. Identification des ressources sous-utilisées, des doublons fonctionnels et des leviers de mutualisation.
↳ Visibilité claire sur les postes de dépense et maîtrise des engagements récurrents.
🛡️
Stratégie & Gouvernance
Modélisation des Processus & Parcours Métier
Observation des pratiques réelles des équipes, formalisation des règles de gestion et repérage des ressaisies ou frictions opérationnelles avant tout choix d'outil.
↳ Alignement entre le besoin opérationnel réel et le périmètre fonctionnel retenu.
☁️
Stratégie & Gouvernance
Cadrage Fonctionnel & Expression de Besoin
Traduction d'un objectif métier en cahier des charges structuré, loti et vérifiable. Permet de consulter ou de réaliser sur une base sans ambiguïté.
↳ Limitation des dérives de périmètre et des incompréhensions en cours de réalisation.
⚡
Architecture & Urbanisme
Cartographie & Urbanisation du SI
Découpage du système d'information en domaines fonctionnels cohérents. Identification des responsabilités de chaque brique et réduction des adhérences inutiles entre services.
↳ Système plus lisible, où l'évolution d'un domaine ne déstabilise pas l'ensemble.
📐
Architecture & Urbanisme
Architecture des Échanges & Médiation
Définition des contrats d'interface et des modalités de circulation de l'information entre applications hétérogènes. Passage progressif de liaisons point-à-point fragiles à des flux découplés.
↳ Traçabilité des échanges et isolation des pannes entre composants.
Method

Step-by-step progression

Rather than committing to a heavy program on unproven assumptions, we move forward through short, verifiable milestones.

1

Initial Assessment

Factual review of existing applications, flows, infrastructure, and operating constraints. Deliverable: a shared assessment and prioritized options. Defined scope, with no obligation to continue.

2

Action Plan

Based on the assessment, definition of a realistic trajectory: phasing, prerequisites, and risk points. If conditions are not met, we state it plainly.

3

Guided Implementation

Progressive rollout of selected phases alongside your teams: The initial assessment directly serves as the foundation for the first implementation milestone.

Discuss a topic
Environments

Foundations & Business Modules

The principles we recommend are the ones we apply across our own environments. Browse →

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Flow Mediation

Decoupled Inter-Application Flows
Asynchronous event routing between applications. Avoids fragile point-to-point dependencies and absorbs availability gaps across services.
Business
DecouplingContinuityReadability
Tech
EventsAsynchronousControlled Replay
🏛️

Shared Technical Foundation

Cross-Cutting Functions in One Place
Shared core building blocks required by applications: access control, databases, monitoring, and regular backups.
Business
AuthenticationMonitoringBackups
Tech
IsolationUnified AccessObservability
📚

Document Repository

Collection, Classification & Structured Search
Centralization of document corpora, registries, and business metadata to prevent file sprawl and ensure reliable search.
Business
KnowledgeTaxonomySearch
Tech
IndexingMetadataPermissions
⚙️

Execution Environments

Managed Application Hosting
Environments ready to host business applications with routing, perimeter filtering, certificates, and ongoing operational maintenance.
Business
Multi-environmentSecurityMaintenance
Tech
RoutingIsolationControlled Deploy
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Operations Tracking

Technical Inventory & Scheduled Tasks
Consolidated view of IS assets, periodic job tracking, and resource consumption control across scopes.
Business
IS InventorySchedulingCost Readability
Tech
MappingProbesThresholds
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Corpus Search & Synthesis

Verifiable Querying of Internal Corpora
Exploration of technical or regulatory documents with systematic linking of answers back to original source excerpts.
Business
VerifiabilityConfidentialityReading Speed
Tech
Logical ChunkingSimilarityCitations
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Regulatory Analysis

Map & Document Cross-Referencing
Decision-support tool for reading and cross-referencing territorial rules and planning documents on a given perimeter.
Business
PlanningComplianceAnalysis Aid
Tech
MappingZoningReporting
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Structured Publishing Studio

Single Source & Multi-Format Publishing
Workflow for preparing, collaboratively reviewing, and exporting books or booklets across digital and print formats.
Business
PublishingReviewMulti-format
Tech
Structured CoreTemplatesExport
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Knowledge Workspace

Dossier Management & Project Memory
Sober structuring of architectural notes, technical decisions, and operational follow-up across projects.
Business
ContinuityDocumentationTracking
Tech
ClassificationSearchPermissions
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Business Management Suites

Operational Tool Unification
Design and integration of environments combining activity tracking, document management, and operational indicators under unified access.
Business
OperationsInternal PortalConsolidation
Tech
Unified AccessBusiness FlowsTraceability
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Local Portals & Services

Multi-Actor Information & Directories
Implementation of portals designed to federate local or sector actors with delegated content and event management.
Business
Local NetworksPublishingSimple Admin
Tech
Multi-entityAPIMapping
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Transactional Platforms

Catalogues, Orders & Logistics Flows
Online applications integrating catalogue management, order workflows, and links to fulfillment or billing tools.
Business
DistributionOrdersContinuity
Tech
TransactionsIntegrationCaching