diff --git a/Documentation/ImplementersDocumentation/developer-guide.md b/Documentation/ImplementersDocumentation/developer-guide.md
index 09dc027..1ca2bef 100644
--- a/Documentation/ImplementersDocumentation/developer-guide.md
+++ b/Documentation/ImplementersDocumentation/developer-guide.md
@@ -5,7 +5,7 @@ An IDS file is simply an XML file, with its schema defined in XSD. You may open
 An IDS is considered valid if it passes the XSD-based validation check. All sample IDS files available in the buildingSMART directory of public IDS templates are guaranteed to be valid.
 
 1. [Download the latest IDS XSD schema](https://github.com/buildingSMART/IDS/blob/master/Development/ids.xsd)
-2. Download sample IDS files from the `Documentation/testcases` folder
+2. Download sample IDS files from the `Documentation/ImplementersDocumentation/TestCases` folder
 
 There are many freely available online tools and programming libraries that can perform XSD validation.
 However, a valid IDS file requires more than bare XML schema compliance; buildingSMART provides an [IDS auditing tool](https://github.com/buildingSMART/IDS-Audit-tool/) to help ensure that the IDS files that you produce or receive are fully valid. The same tool is also available at [Xbim IDS auditing service](https://www.xbim.it/ids), which is executed locally in your web browser and does not upload your IDS files to any server.
@@ -34,7 +34,7 @@ In addition, it is highly recommended to also provide the following features for
 
 ## Checking IDS against IFC
 
-Any software implementing IDS checking **must** comply with the test suite of IFC/IDS pairs available in the `Documentation/testcases` folder (see [test cases documentation](testscases/scripts.md)).
+Any software implementing IDS checking **must** comply with the test suite of IFC/IDS pairs available in the `Documentation/ImplementersDocumentation/TestCases` folder (see [test cases documentation](TestCases/scripts.md)).
 
 In addition, it is highly recommended to also provide the following features for users:
 
diff --git a/Documentation/UserManual/README.md b/Documentation/UserManual/README.md
index ad244f5..14f6db8 100644
--- a/Documentation/UserManual/README.md
+++ b/Documentation/UserManual/README.md
@@ -35,4 +35,4 @@ If you need help, please feel free to ask for help on the [buildingSMART Forums]
  1. [Learn how to use the **Property Facet**](property-facet.md)
  1. [Learn how to use the **Material Facet**](material-facet.md)
  1. [Learn how to use the **PartOf Facet**](partof-facet.md)
- 1. [Are you a software developer? Read the developer guide!](developer-guide.md)
+ 1. [Are you a software developer? Read the developer guide!](../ImplementersDocumentation/developer-guide.md)
diff --git a/Documentation/UserManual/specifications.md b/Documentation/UserManual/specifications.md
index 9c39f8b..59a5f50 100644
--- a/Documentation/UserManual/specifications.md
+++ b/Documentation/UserManual/specifications.md
@@ -97,9 +97,9 @@ the following interpretation applies:
 
 | Type           | Meaning                                                                               | Success criteria                                                                                          |
 | -------------- | ------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------- |
-| **Required**   | A matching property is required in the model                                          | Matching entities have a ePset_SpaceOMA/TravelDirection property of type IFCLABEL and non null value      |
-| **Prohibited** | A matching property cannot be present in the model                                    | Matching entities don't have a property TravelDirection in the ePset_SpaceOMA property set                |
-| **Optional**   | Expectations of a propertySet/property and value constrains are defined, but optional | Matching entities either don't have the property, or if they do, it is of the expected datatype and value |
+| **required**   | A matching property is required in the model                                          | Matching entities have a ePset_SpaceOMA/TravelDirection property of type IFCLABEL and non null value      |
+| **prohibited** | A matching property cannot be present in the model                                    | Matching entities don't have a property TravelDirection in the ePset_SpaceOMA property set                |
+| **optional**   | Expectations of a propertySet/property and value constrains are defined, but optional | Matching entities either don't have the property, or if they do, it is of the expected datatype and value |
 
 As a complete example, you might have a **Required** specification that applies to wall entities, that are **Prohibited** from being load-bearing, if you wanted your model to not contain any load-bearing walls.
 
diff --git a/Schema/ids.xsd b/Schema/ids.xsd
index edab179..047c348 100644
--- a/Schema/ids.xsd
+++ b/Schema/ids.xsd
@@ -80,7 +80,7 @@
 				<xs:annotation>
 					<xs:documentation>
 						Depending on the dataType attribute, values are expressed in the default unit documented at 
-						https://github.com/buildingSMART/IDS/blob/master/Documentation/units.md, and unit conversion might be required.
+						https://github.com/buildingSMART/IDS/blob/master/Documentation/UserManual/units.md, and unit conversion might be required.
 					</xs:documentation>
 				</xs:annotation>
 			</xs:element>
@@ -98,7 +98,7 @@
 				<xs:annotation>
 					<xs:documentation>
 						Depending on the IFC type of the attribute, values are expressed in the default unit documented at 
-						https://github.com/buildingSMART/IDS/blob/master/Documentation/units.md, and unit conversion might be required.
+						https://github.com/buildingSMART/IDS/blob/master/Documentation/UserManual/units.md, and unit conversion might be required.
 					</xs:documentation>
 				</xs:annotation>
 			</xs:element>