Actualiser README.md

README.md

@@ -13,7 +13,33 @@
 
 ## The Challenge
 
-streaming data : quicker, faster, stronger
+* [Problem statement](https://github.com/vyzn-tech/ifc-data-bus?tab=readme-ov-file#problem-statement)
+
+## The Challenge
+
+## Problem Statement
+
+* Architects and planners rely on a **broad ecosystem of software tools**,
+* yet **poor data integration between these tools creates major bottlenecks** in the design process.
+* This fragmentation prevents holistic project optimization and slows down coordination.
+
+### Data Stream 
+
+* Although **OpenBIM** aims to support **interoperability**, it still lacks robust mechanisms for
+
+> **bi-directional data exchange**
+
+* —particularly when it comes to **re-integrating data into CAD and CDE environments**.
+*  **Existing initiatives often do not prioritize full OpenBIM compliance**, leaving a clear opportunity for alternative, standards-aligned solutions.
+
+### 'Flat Modules' vs 'Monolithic 
+
+> At the same time, the emerging **modularized and layerized IFC5** standard 
+
+* introduces new capabilities for more flexible, **fine-grained**, and machine-friendly data handling.
+* These advances open the door to **new workflows** built around decentralized, **event-driven data exchange** rather than **monolithic file transfers**.
+
+## The Story
 
 ## ifc-data-bus 🚐