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 This section is the project documentation for IPCEI-CIS Developer Framework.
 
+## When and how to use th edeveloper framework?
+
+### e.g. an example
+
+.... taken from https://cloud.google.com/blog/products/application-development/common-myths-about-platform-engineering?hl=en
+
+![alt text](image.png)
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@@ -8,6 +8,76 @@ So please feel free to read this Onboarding guide!
 
 ## Platforms
 
-## Platform Teams
+## History
+
+https://platformengineering.org/blog/the-story-of-platform-engineering
+
+![alt text](image-1.png)
+
+https://developers.redhat.com/articles/2024/05/06/what-platform-engineering-and-why-do-we-need-it#why_we_need_platform_engineering
+
+https://orkohunter.net/blog/a-brief-history-of-platform-engineering
+
+https://softwareengineeringdaily.com/2020/02/13/setting-the-stage-for-platform-engineering/
+
+
+### DevOps, Cloud Native, and the Rise of Platform Engineering
+
+https://www.linkedin.com/pulse/evolution-platform-engineering-gaurav-goel
+
+
+## CNCF Working group / White paper
+
+--> porfolio
+
+
+### Platform definition / essence
+
+
+https://medium.com/@bijit211987/what-is-platform-engineering-and-how-it-reduce-cognitive-load-on-developers-ac7805603925
+
+#### Ontology: What is 'Platform' (Digital Platform) --> Fowler / Thoughtworks
+
+https://martinfowler.com/articles/talk-about-platforms.html
+
+##### What is a 'Platform' anyway?
+
+> Words are hard, it seems. ‘Platform’ is just about the most ambiguous term we could use for an approach that is super-important for increasing delivery speed and efficiency at scale. Hence the title of this article, here is what I’ve been talking about most recently. 
+\
+Definitions for software and hardware platforms abound, generally describing an operating environment upon which applications can execute and which provides reusable capabilities such as file systems and security.
+\
+Zooming out, at an organisational level a ‘digital platform’ has similar characteristics - an operating environment which teams can build upon to deliver product features to customers more quickly, supported by reusable capabilities.
+\
+A digital platform is a foundation of self-service APIs, tools, services, knowledge and support which are arranged as a compelling internal product. Autonomous delivery teams can make use of the platform to deliver product features at a higher pace, with reduced co-ordination.
+
+#### myths :-)
+
+https://cloud.google.com/blog/products/application-development/common-myths-about-platform-engineering?hl=en
+
+
+### Platform Teams
 
 https://platformengineering.org/blog/how-to-build-your-platform-engineering-team
+
+#### in comparison: devops vs sre vs platform
+
+https://www.qovery.com/blog/devops-vs-platform-engineering-is-there-a-difference/
+
+![alt text](image.png)
+
+## Internal Developer Platforms
+
+--> portfolio cont'd
+
+## Platform Orchestrator
+
+--> dynamic configuration
+
+Humanitec, massdriver, CNOE, Kratix, ... (?) ...
+
+## Reference Architecture
+
+## Developer Framework Architecture
+
+## Developer Framework Project Epics & Use Cases 
+
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