The document discusses the C4 model for software architectural diagrams. The C4 model uses four levels of abstraction - context, containers, components, and code - to describe a software system. The context diagram shows system interactions at a high level. The container diagram shows the technology framework and responsibilities. The component diagram shows structural blocks within a container. The code diagram shows component implementation through class diagrams. The C4 model provides an architecture foundation and aids communication and documentation.

1. C4 Model
Software Architectural Diagrams
Dileep Kumar K
Jr. System Analyst
CAS Puthuppally

2. We are Indebted to
SIMON BROWN for C4 Model

3. Architecture ?
 It shows the “BIG Picture”
 It enables us to think about various interactions
 Assessment of the technology stack becomes easy
 Helps in Communication between team members and
stakeholders.
 Documentation becomes easy

4. Architecture
 A software’s architecture is the foundation for any
successful software system and will influence
everything from maintainability, scalability, stability,
and security throughout that system’s lifecycle. The
first step toward implementing a new software system
is the architecture diagram.

5. C4 Model
 The "c4" in c4 Model stands for
 "Context, Containers, Components, and Code".
 These are the four levels of abstraction used in the model to
describe a software system, each with its own diagram type.

6. System Context Diagram
 A starting point of creating system by seeing the bigger picture.
It is a simple model that shows how system and users will
interact with each other. The focus of this level is resources,
roles, and system with low-level details for non-technical
audiences.

10. Container Diagram
 This is an execution unit that executes code or store data. For
example, the server-side of software application, website, and
database.
 The diagram of container diagram provides a high-level
technology framework including responsibilities and
technologies. It is an important model for software development
team to communicate.

12. Component Diagram
 Container is made up of a number of components.
 Components identify structural building blocks.
 Software architectures and developers are the audiences for
this level.
 A component diagram, zooms into an individual container to
show the components inside it.
 These components should map to real abstractions (e.g., a
grouping of code) in your codebase.

14. Code Diagram
 Each component is implemented as a code.
 At the last level, the C4-model shows - at the code level - how
each component is implemented and for that, it uses the UML
class diagram.
 Generally speaking, this level of detail is not recommended and
is an optional view. Furthermore, several tools currently
generate this type of diagram automatically.

16. Thanks

17. Uses of AI and ML In Policing
 https://www.youtube.com/watch?v=7lpCWxlRFAw
 https://www.youtube.com/watch?v=H_fyQCeBaeM
 https://www.youtube.com/watch?v=WMAfBK7KITQ
 https://www.youtube.com/watch?v=YxvyeaL7NEM

18. This work is licensed under a Creative Commons
Attribution-ShareAlike 3.0 Unported License.
It makes use of the works of Mateus Machado Luna.