diff --git a/Home.md b/Home.md
index abd2b82..9da3e07 100644
--- a/Home.md
+++ b/Home.md
@@ -7,7 +7,7 @@ purpose:
 explaining the file `*.elmt` and then `*.qet`
 and this for developers.
 
-## [elements XML structure](XML-elements)
+## [elements XML structure](elements_XML)
 
 ## [contributor to wiki](contributor_to_wiki_guidelines)
 
diff --git a/_Sidebar.md b/_Sidebar.md
index 0022d22..41b8442 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -1,9 +1,9 @@
  *   [Home](Home)
  *   [contributor to wiki guidelines](contributor_to_wiki_guidelines)
- *   [XML-elements](XML-elements)
-     *  [uuid](child_uuid)
-     *  [names](child_names)
-     *  [informations](child_informations)
-     *  [description](child_description)
-     *  [kindInformations](child_kindInformations)
-     *  [elementInformations](child_elementInformations) 
+ *   [XML-elements](elements_XML)
+     *  [uuid](elements_child_uuid)
+     *  [names](elements_child_names)
+     *  [informations](elements_child_informations)
+     *  [description](elements_child_description)
+     *  [kindInformations](elements_child_kindInformations)
+     *  [elementInformations](elements_child_elementInformations) 
diff --git a/data_files/elements/child_kindInformations.md b/data_files/elements/child_kindInformations.md
deleted file mode 100644
index 8b1a75b..0000000
--- a/data_files/elements/child_kindInformations.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# kindInformations 
-
-see [definition attribute link type](definition_attribute#link-type) when used 
diff --git a/data_files/elements/XML-elements.md b/data_files/elements_XML.md
similarity index 68%
rename from data_files/elements/XML-elements.md
rename to data_files/elements_XML.md
index 8c00431..a513c33 100644
--- a/data_files/elements/XML-elements.md
+++ b/data_files/elements_XML.md
@@ -10,15 +10,15 @@ The main XML element is therefore the “definition” tag. In case we have more
 Example:
 `<definition type="element" width="" height="" hotspot_x="" hotspot_y="" orientation="dyyy" version="" link_type="">`
 
-[attribute](definition_attribute)
+[attribute](elements_definition_attribute)
 
 ### child elements
- *  [uuid](child_uuid)
- *  [names](child_names)
- *  [informations](child_informations)
- *  [description](child_description)
- *  [kindInformations](child_kindInformations)
- *  [elementInformations](child_elementInformations)
+ *  [uuid](elements_child_uuid)
+ *  [names](elements_child_names)
+ *  [informations](elements_child_informations)
+ *  [description](elements_child_description)
+ *  [kindInformations](elements_child_kindInformations)
+ *  [elementInformations](elements_child_elementInformations)
 
 
 
diff --git a/data_files/elements/child_description.md b/data_files/elements_child_description.md
similarity index 100%
rename from data_files/elements/child_description.md
rename to data_files/elements_child_description.md
diff --git a/data_files/elements/child_elementInformations.md b/data_files/elements_child_elementInformations.md
similarity index 69%
rename from data_files/elements/child_elementInformations.md
rename to data_files/elements_child_elementInformations.md
index cd20ad7..5ff14bb 100644
--- a/data_files/elements/child_elementInformations.md
+++ b/data_files/elements_child_elementInformations.md
@@ -1,5 +1,5 @@
 # elementInformations
-see [definition attribute link type](definition_attribute#link-type) when used
+see [definition attribute link type](elements_definition_attribute#link-type) when used
 
 Example:
 `<elementInformations>`
diff --git a/data_files/elements/child_informations.md b/data_files/elements_child_informations.md
similarity index 100%
rename from data_files/elements/child_informations.md
rename to data_files/elements_child_informations.md
diff --git a/data_files/elements_child_kindInformations.md b/data_files/elements_child_kindInformations.md
new file mode 100644
index 0000000..ecaabb2
--- /dev/null
+++ b/data_files/elements_child_kindInformations.md
@@ -0,0 +1,3 @@
+# kindInformations 
+
+see [definition attribute link type](elements_definition_attribute#link-type) when used 
diff --git a/child_name.md b/data_files/elements_child_name.md
similarity index 60%
rename from child_name.md
rename to data_files/elements_child_name.md
index 54620a2..b846096 100644
--- a/child_name.md
+++ b/data_files/elements_child_name.md
@@ -1,5 +1,10 @@
 # name
 Example:`<name lang="en">Going arrow</name>`
 
+parent : names
+
 ## attribute
- *  lang
\ No newline at end of file
+ *  lang
+ 
+## children
+none
diff --git a/child_names.md b/data_files/elements_child_names.md
similarity index 64%
rename from child_names.md
rename to data_files/elements_child_names.md
index 8e0934a..b01b0d5 100644
--- a/child_names.md
+++ b/data_files/elements_child_names.md
@@ -1,9 +1,10 @@
 # names
 Example:
+`<names>`
 
 parent : definition
 
 attribute : none
 
 ## child elements
- *  [name](child_name)
\ No newline at end of file
+ *  [name](elements_child_name)
diff --git a/data_files/elements/child_uuid.md b/data_files/elements_child_uuid.md
similarity index 53%
rename from data_files/elements/child_uuid.md
rename to data_files/elements_child_uuid.md
index a259369..443abc2 100644
--- a/data_files/elements/child_uuid.md
+++ b/data_files/elements_child_uuid.md
@@ -6,15 +6,4 @@ Example:
 
 attribute : uuid
 * Uuid used to compare two elements 
-### names
-Example:
-`<names>`
 
-parent : definition
-
-attribute : none
-
-children : name
-
-> Example:
-> `<name lang="en">fuse</name>` 
diff --git a/data_files/elements/definition_attribute.md b/data_files/elements_definition_attribute.md
similarity index 100%
rename from data_files/elements/definition_attribute.md
rename to data_files/elements_definition_attribute.md