diff --git a/radar/2022-03-28/inner-source.md b/radar/2022-03-28/inner-source.md
new file mode 100644
index 0000000..1aa283d
--- /dev/null
+++ b/radar/2022-03-28/inner-source.md
@@ -0,0 +1,19 @@
+---
+title:      "Inner Source"
+ring:       assess
+quadrant:   methods-and-patterns
+---
+
+Inner Source is a strategy to frictionless cross-team collaboration in software development inside an organization. 
+Based on Open Source methodologies, it provides an adaptable set of tools and practices for contributing to code 
+developed by other teams. By fostering transparency and openness, it lowers the hurdle to get involved into 
+decision-making throughout the corporation.
+
+Core principles of Inner Source include:
+- openness: all artifacts developed by an organization should be available to all employees
+- active contribution: developers are encouraged to rather implement a feature instead of asking for it
+- written communication: all decisions should be comprehensible and transparent
+- rewards and motivation: every contribution is important and deserves recognition
+
+As AOE strives for a high involvement of every employee into decision processes and organizational development, Inner
+Source seems an ideal fit to our [company culture](https://www.aoe.com/en/career/how-we-work.html).