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+# parameter-framework configuration file XML Schemas
+
+These are W3C Schemas for the various configuration files.
+
+`xmllint` may be used to check for correctness, e.g:
+
+    xmllint --xinclude --noout --schema ParameterFrameworkConfiguration.xsd /path/to/your/ParameterFrameworkConfiguration.xml
+
+See `tools/xmlValidator` for a custom alternative tool.
+
+Only `ParameterFrameworkConfiguration.xsd`, `SystemClass.xsd`, `Subsystem.xsd` and
+`ConfigurableDomains.xsd` are relevant for use with xmllint: the others are
+included by these 4 XSDs.
+
+You may refer to samples at
+<https://github.com/01org/parameter-framework-samples>.
+
+## ParameterFrameworkConfiguration.xsd
+
+Schema for the top-level configuration.  It contains:
+
+- A reference to the `SystemClass` (aka StructureDescription) XML file (see
+  below);
+- The list of plugins to be used;
+- Optionally, a reference to the `Settings`.
+
+Attributes of `ParameterFrameworkConfiguration` are:
+
+- The `SystemClass` name (for consistency check)
+- The `TuningMode` (whether the parameter-framework listens for commands)
+- The `ServerPort` on which the parameter-framework listens if
+  `TuningMode=true`.
+
+## SystemClass.xsd
+
+Schema for the SystemClass associated with the top-level configuration.  It
+points to all the "Subsystem" files (see below).
+
+## Subsystem.xsd
+
+Schema for all Subsystem files (aka Structure files).  These files describe the
+content and structure of the system to be managed by the parameter-framework
+and also indicate which plugin is to be used.
+
+## ConfigurableDomains.xsd
+
+Schema for the ConfigurableDomains (aka Settings files).  These files contain
+the rules for applying values to parameters.