June 2026
Intermediate
180 pages
4h 38m
French
Content preview from Le modèle C4 (French Edition)
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Chapitre 3. Diagramme de contextedu système
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On commence notre tour d'horizon des diagrammes qui composent le modèle C4 par le diagramme de contexte du système, un point de départ utile et logique pour schématiser et documenter l'architecture logicielle. En résumé, ce diagramme permet de mettre en évidence le système logiciel qu'on décrit, entouré des personnes qui l'utilisent et des autres systèmes logiciels avec lesquels il interagit. Ici, les détails ne sont pas importants, car il s’agit d’une vue d’ensemble qui montre la « vision globale » du système logiciel et de son environnement immédiat. Le diagramme doit se concentrer sur les personnes (acteurs, rôles, personas) et les systèmes logiciels plutôt que sur les technologies, les protocoles et autres détails de bas niveau. C’est le genre de diagramme que tu devrais pouvoir montrer aussi bien à des techniciens qu’à des non-initiés.
Aspects clés du diagramme de contexte du système
Pour comprendre pourquoi et comment utiliser ce diagramme, il est utile de garder à l’esprit son objectif, sa portée, son contenu, ses cas d’utilisation et son public.
Objectif
Un diagramme de contexte du système t'aide à répondre aux questions suivantes :
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Quel est le système logiciel que tu es en train de développer (ou que tu as développé) ?
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Qui utilise le système logiciel ?
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Que font les différents types d'utilisateurs ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.