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C4 model

The C4 model for visualising software architecture. Context, Containers, Components, and Code.

C4 model

C4 model Reviews and Details

This page is designed to help you find out whether C4 model is good and if it is the right choice for you.

Screenshots and images

  • C4 model Landing page
    Landing page //
    2023-05-14

Features & Specs

  1. Simplicity

    The C4 model promotes a simple and clear approach for visualizing software architecture by limiting the number of diagram types and focusing on different levels of detail, making it easy to understand and use.

  2. Scalability

    The C4 model scales well with systems of varying complexity, offering different levels of abstraction (Context, Container, Component, and Code) tailored to different audiences and detailed needs.

  3. Clarity of Communication

    By dividing the representation of the system into different levels, the C4 model improves communication among stakeholders by providing the right level of detail to the right audience.

  4. Standardization

    The model introduces a standard way to create architecture diagrams, making it easier to maintain consistency and understandability across different teams and projects.

  5. Focus on Architecture

    C4 places a strong emphasis on architectural elements without becoming tied into specific tooling or technology choices, thus focusing on high-level designs rather than low-level implementation details.

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Videos

Visualising software architecture with the C4 model - Simon Brown, Agile on the Beach 2019

Social recommendations and mentions

We have tracked the following product recommendations or mentions on various public social media platforms and blogs. They can help you see what people think about C4 model and what they use it for.
  • Advancing Your Own AWS Architect with DrawIO Skills and Living Documentation
    C4 model is a pragmatic approach to architecture modelling. There are many ways to introduce this into your architecture agent, for instance by using Structurizr syntax plus tooling as they also have official MCP servers. For now we're just going to rely on a simple skill from my GitHub repo and existing DrawIO MCP and skills. Configuration is super-simple, you just have to drop in the skill into... - Source: dev.to / 3 months ago
  • Show HN: Scryer โ€“ Visual architecture modeling for AI agents
    I've been working on this desktop tool (FSL license, free for commercial use) for the past month because I now spend more time in a terminal prompting Claude Code instead of using a code editor. It generally works quite well if I ask the right questions, but I still often find a lot of dead code, stubs, or poor architectural choices when I finish a session, and understanding the codebase itself can be jarring... - Source: Hacker News / 5 months ago
  • Solved: Awesome Kubernetes Architecture Diagrams
    When you need formal, lasting documentation, you need structure. The C4 model is brilliant for software, and we can adapt it perfectly for Kubernetes. It provides four levels of zoom, and you create a different diagram for each level. This prevents information overload. - Source: dev.to / 6 months ago
  • Beyond Code Generation: LLMs for Code Understanding
    Deepwiki-rs approaches grounding through explicit, architecture-first artifacts rather than conversational explanations. Its outputs, such as C4 diagrams, component boundaries, and cross-references, are derived directly from static analysis of the source code, which makes their grounding relatively strong and inspectable. This tool implements a 4-step pipeline to generate documentation that includes C4 models of... - Source: dev.to / 8 months ago
  • Stop Drawing, Start Coding: Modern AWS Architecture with LikeC4
    The C4 model is an approach for structuring and visualizing software architecture design. It was created by Simon Brown. It aims to provide different levels of detail, much like maps: from a high-level view down to the code. It stands for Context, Containers, Components, and Code. These are the four hierarchical levels of abstraction:. - Source: dev.to / 8 months ago
  • Understanding Spec-Driven-Development: Kiro, Spec-Kit, and Tessl
    > Now I'm left trying to define/design what a "spec" for communication between humans and coding agents would look like, to power what Birgitta called spec anchored. I feel that now with AI this is something that we have to finally do. Define how we write out a spec and record an architecture semi-formally, and in a way that is human-readable and human-manageable. And in a way that can 1) be consumed partially by... - Source: Hacker News / 10 months ago
  • Show HN: UML diagram for the DDD example in Evans' book
    For the architectural documentation like this one, the C4 Model [0] is a much better fit than UML - primarily because it's less rigid in notation and modeling components. And in terms of tooling, I find IcePanel [1] to have the right combination of flexibility and simplicity. [0] https://c4model.com/ [1] https://icepanel.io/. - Source: Hacker News / over 1 year ago
  • How I think about Vaadin application architecture today
    Instead, inspired by the C4 model of visualizing software, I've explored a component based approach, where an application consists of multiple components that interact with each other. These components aren't classified into any particular layer (except, maybe the presentation layer and application layer). - Source: dev.to / over 1 year ago
  • Common Mistakes in Architecture Diagrams (2020)
    Iโ€™m surprised no one has mentioned the C4 approach to diagramming yet, which is a prescriptive approach that helps to avoid most of these mistakes: https://c4model.com/. - Source: Hacker News / over 1 year ago
  • Step outside the Happy Path
    Start by formalizing the architecture. You donโ€™t need heavy enterprise methodologies like TOGAF; use formats that fit the team and product. Frameworks like arc42 are suitable for complex systems, while simpler projects may only need C4 diagrams supplemented with a few additional visualizations. - Source: dev.to / over 1 year ago
  • C4 Model - The Basics
    Software Architecture is all about developing systems that scale and are maintainable. Clear visualizations will help teams to communicate the design effectively. The C4 model comes in handy for this task! But what is C4, and why should you care? - Source: dev.to / almost 2 years ago
  • Turning the Crank: Design as a Mechanical Process
    Https://c4model.com/ is very useful for this. :-) I've told it before, but when we were doing some clean sheet work a while ago I decided to use the C4 model and drew out the obligatory "Context" diagram with "user" "phone" "laptop" "app" sort of stuff... And then two hours later realized that because we had both an online and a semi-disconnected mobile app that could be offline, certain things -had- to use a... - Source: Hacker News / almost 2 years ago
  • Vega โ€“ A declarative language for interactive visualization designs
    What sort of maps are you wanting to build? https://c4model.com/ seems to be the more popular standard for this style at the moment. https://github.com/plantuml-stdlib/C4-PlantUML makes this somewhat easy to code out. (And I think most cloud providers have addons for it.). - Source: Hacker News / almost 2 years ago
  • Ask HN: Best tool to create cloud architecture diagrams
    Could you define "best"? I think it depends on your requirements. There are many tools available. Here are some I suggest. * Excalidraw https://excalidraw.com/ * The C4 model https://c4model.com/. - Source: Hacker News / almost 2 years ago
  • Ask HN: Visualize Software Architecture/Concepts
    C4 modelling (with associated diagrams using whatever tools) can be powerful, part of the value is that they help capture the nested and relational nature of many software systems. https://c4model.com/. - Source: Hacker News / almost 2 years ago
  • Devs need system design tools, not diagramming tools
    As others have said the C4 model is a great way to address a number of these issues. I canโ€™t find the right video at the moment but Simon Brown (creator of C4) gives a great talk about creating his DSL, Structurizr, for C4, which he developed during COVID lockdown (if memory serves). There are many videos on YouTube of Simon talking about โ€œC4 Models as Codeโ€ so Iโ€™m sure any one of those will suffice. The focus is... - Source: Hacker News / about 2 years ago
  • Devs need system design tools, not diagramming tools
    It sounded like it was working up to a C4 pitch but never got there. It bears a look exactly for this post's title. https://c4model.com. - Source: Hacker News / about 2 years ago
  • Devs need system design tools, not diagramming tools
    Maybe checkout https://c4model.com/. - Source: Hacker News / about 2 years ago
  • Book: Just Enough Software Architecture
    Simon Brown is another person who has done a far better job than me of "democratizing" software architecture for developers. His talks [1] and workshops on architecture are exceptionally effective and his C4 architecture modeling language [2] is getting real traction. I have youtube videos too [3] but they aren't as effective. [1] https://www.youtube.com/results?search_query=simon+brown+architecture [2]... - Source: Hacker News / about 2 years ago
  • Ask HN: Guidelines for making clear architecture diagrams
    Keep it simple and use https://c4model.com/. - Source: Hacker News / over 2 years ago
  • Ask HN: Guidelines for making clear architecture diagrams
    Second this. Reference for anyone looking I to it: https://c4model.com/ There is also quite a lot of options for helping create these diagrams. I've found https://structurizr.com/ to be the best of what I've tried so far. - Source: Hacker News / over 2 years ago

Summary of the public mentions of C4 model

The C4 model, designed by Simon Brown, has garnered a significant following and is increasingly recognized as a practical and insightful approach to visualizing software architecture. Unlike traditional UML diagrams, the C4 model emphasizes clarity and simplicity, facilitating communication across different levels of abstraction without the rigor often associated with UML's detailed specifications. This adaptability has positioned the C4 model as a compelling alternative to its competitors, particularly in environments where clear and efficient communication of architectural designs is essential.

The model operates on a principle similar to physical maps: it allows for multiple layers of detail, enabling users to zoom in from a high-level overview down to a more granular level, such as class diagrams. This approach mimics real-world geographical mapping, providing a versatile structure that teams can adapt according to the complexity of the systems they are developing.

Public discussions highlight several attributes that make C4 a preferred choice among software architects and developers. Notably, the C4 model is often cited for its relative simplicity and flexibility compared to UML. Practitioners appreciate that it focuses on understanding and representing the architectural elements of a system without overwhelming details, which can often obscure rather than clarify.

The C4 model's adaptability also allows it to integrate seamlessly with various tools, expanding its utility. Platforms like IcePanel and Structurizr are frequently mentioned in context with the C4 model, illustrating how its concepts can be implemented and visualized efficiently. Structurizr, in particular, has gained attention for "Models as Code," a methodology that formalizes system architecture, from which diagrams are extracted as secondary artifacts, offering a more deliberate approach to modeling than diagram-centric tools alone.

In various forums, particularly developer-centric discussions, the C4 model is praised for its clarity in representing nested and relational structures. Its practical benefits are emphasized in diverse scenarios, from application architecture design to complex system documentation. Notably, it is recognized for helping teams avoid common pitfalls associated with architecture diagrams, providing a more systematic way of representing systems that can scale and evolve.

Additionally, the endorsement of the C4 model by figures like Simon Brown, through talks and workshops, has contributed to its proliferation as a standard in modern software architecture practices. This endorsement is reflected in numerous user testimonials, which frequently highlight how the C4 model has transformed their understanding of system design, offering clarity and cohesion that are often lacking in other methodologies.

In summary, the C4 model has achieved widespread acclaim for its intuitive representation of complex systems, bridging the gap between overly simplistic diagrams and overly complex, traditional modeling languages like UML. Its focus on collaboration, adaptability, and clarity ensures that it continues to be a valuable resource for software development teams striving to communicate and streamline their architectural designs effectively.

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Is C4 model good? This is an informative page that will help you find out. Moreover, you can review and discuss C4 model here. The primary details have not been verified within the last quarter, and they might be outdated. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.