diff --git a/pages/Workflows.md b/pages/Workflows.md
index 3d75f650eabf8517f971049ac615a4705b530056..8c3738b1613d6553bb3863f169ebd9bbf4a47cd0 100644
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 Title: Workflow management
 Author: Jutta
 ---
+
+The simulation and raw data processing chains consist of workflows that are
+executed on heterogeneous clusters of computers. The harmonisation of workflow
+interfaces is one of the bigger challenges due to the large variety of software
+being used in individual processing steps. The benefits of a standardised
+interface lie in clarity and simplified maintainance. The Common Workflow
+Language (CWL) is currently being evaluated as an abstraction layer to describe
+analysis workflows and tools. It provides scalability and portability accross
+many different software and hardware environments.
+