diff --git a/docs/ecolyo/project_architecture/architecture.md b/docs/ecolyo/project_architecture/architecture.md
index 26f2105bdccaf37c202519169b1d4bf3c8336fc3..8943d8a1544e8a66a0cbcc7e61f3cd1eff3d0372 100644
--- a/docs/ecolyo/project_architecture/architecture.md
+++ b/docs/ecolyo/project_architecture/architecture.md
@@ -1,84 +1,7 @@
-## Libraries
+# Architecture
-For this project, we use the libraries below:
+## Principle diagram
-###React
+The principle diagram below describes the responsibilities of each application brick.
-Library to create user interfaces.
-Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes.
-
-Build encapsulated components that manage their own state, then compose them to make complex UIs.
-
-Since component logic is written in JavaScript instead of templates, you can easily pass rich data through your app and keep state out of the DOM
-
-###React Redux
-
-It is a predictable state container.
-
-It is implemented for a better management of the states because it allows to centralize all the states and the logic of the application.
-It lets a react component read data from a Redux store, and dispatch actions to the store to update data.
-
-###Axios
-
-HTTP client library
-
-It allows to send HTTP request and manage the responses.
-
-###Lodash
-
-javascript utility library
-
-Lodash'modular method are great for:
-
-- Iterating arrays, objects, & strings
-- Manipulating & testing values
-- Creating composite functions
-
-###Moment
-
-Date library to parse, validate, manipulate, and display dates and times in JavaScript.
-
-###Luxon
-
-Wrapper for Javascript dates and times.
-
-###Jest
-
-Testing library
-
-It allows to evaluate functionnalities of an app to ensure that the product is defect-free in order to produce the quality product.
-
-###Enzyme
-
-Testing utility for React
-
-It makes it easier to test your React Components' output. You can also manipulate, traverse, and in some ways simulate runtime given the output.
-
-###Sass
-
-CSS preprocessor
-
-It allows us to easily manage large CSS files and split across different files.
-It allows us to create variables, nested rules, mixins, functions, and do mathematical calculations.
-
-###Material UI
-
-It allows to create react component that implements Google's material design
-
-###D3
-
-It allows to manipulate documents based on data.
-It combines visualization components and a data-driven approach to DOM manipulation.
-
-###React-swipeable-views
-
-It is a React component to make swipeable views
-
-###React-lottie
-
-Lottie Animation View for React.
-It allows app to use animations easily.
-
-###Husky
-
-It is used to improve your commit.
+
diff --git a/docs/ecolyo/project_architecture/cozy.md b/docs/ecolyo/project_architecture/cozy.md
deleted file mode 100644
index 2f4f692dba5c6228a0130fccce621b4c7e2d7452..0000000000000000000000000000000000000000
--- a/docs/ecolyo/project_architecture/cozy.md
+++ /dev/null
@@ -1,2 +0,0 @@
-!!! info ""
- :construction: Section under Construction :construction:
\ No newline at end of file
diff --git a/docs/ecolyo/project_architecture/libraries.md b/docs/ecolyo/project_architecture/libraries.md
new file mode 100644
index 0000000000000000000000000000000000000000..227c6e9615e03088c8b3f95b345277decaee028f
--- /dev/null
+++ b/docs/ecolyo/project_architecture/libraries.md
@@ -0,0 +1,84 @@
+# Libraries
+
+For this project, we use the libraries below:
+
+## React
+
+Library to create user interfaces.
+Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes.
+
+Build encapsulated components that manage their own state, then compose them to make complex UIs.
+
+Since component logic is written in JavaScript instead of templates, you can easily pass rich data through your app and keep state out of the DOM
+
+## React Redux
+
+It is a predictable state container.
+
+It is implemented for a better management of the states because it allows to centralize all the states and the logic of the application.
+It lets a react component read data from a Redux store, and dispatch actions to the store to update data.
+
+## Axios
+
+HTTP client library
+
+It allows to send HTTP request and manage the responses.
+
+## Lodash
+
+javascript utility library
+
+Lodash'modular method are great for:
+
+- Iterating arrays, objects, & strings
+- Manipulating & testing values
+- Creating composite functions
+
+## Moment
+
+Date library to parse, validate, manipulate, and display dates and times in JavaScript.
+
+## Luxon
+
+Wrapper for Javascript dates and times.
+
+## Jest
+
+Testing library
+
+It allows to evaluate functionnalities of an app to ensure that the product is defect-free in order to produce the quality product.
+
+## Enzyme
+
+Testing utility for React
+
+It makes it easier to test your React Components' output. You can also manipulate, traverse, and in some ways simulate runtime given the output.
+
+## Sass
+
+CSS preprocessor
+
+It allows us to easily manage large CSS files and split across different files.
+It allows us to create variables, nested rules, mixins, functions, and do mathematical calculations.
+
+## Material UI
+
+It allows to create react component that implements Google's material design
+
+## D3
+
+It allows to manipulate documents based on data.
+It combines visualization components and a data-driven approach to DOM manipulation.
+
+##React-swipeable-views
+
+It is a React component to make swipeable views
+
+## React-lottie
+
+Lottie Animation View for React.
+It allows app to use animations easily.
+
+## Husky
+
+It is used to improve your commit.
diff --git a/docs/img/architecture/cozy-architecture-principles.png b/docs/img/architecture/cozy-architecture-principles.png
new file mode 100644
index 0000000000000000000000000000000000000000..30b67b9cadc17cc4e223c4b9a63c5eef860b6420
Binary files /dev/null and b/docs/img/architecture/cozy-architecture-principles.png differ
diff --git a/mkdocs.yml b/mkdocs.yml
index f6441359a97fb88df165d5285ced19901f0bdca3..8a682782d3df81277f1718e843f3767a00644bf4 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -35,7 +35,7 @@ nav:
- Launch a konnector on local: ecolyo/getting_started/launch_local_konnector.md
- Project Architecture:
- Architecture: ecolyo/project_architecture/architecture.md
- - Cozy: ecolyo/project_architecture/cozy.md
+ - Libraries: ecolyo/project_architecture/libraries.md
- Environments: ecolyo/project_architecture/environments.md
- DocTypes: ecolyo/project_architecture/doctypes.md
- Application: