diff --git a/README.md b/README.md
index beda7e0..ce6923e 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,9 @@
 
 This action creates a `sdv-manifest.toml` file as a release asset, containing information required for the [SDV Maturity assessment](https://gitlab.eclipse.org/eclipse-wg/sdv-wg/sdv-technical-alignment/sdv-technical-topics/sdv-process/sdv-process-evaluation/-/blob/main/README.md) program. It takes as inputs a set of documents provided by the project, and formats it in a way that Eclipse SDV automation scripts can use to compute the level of maturity of the project according to the criteria defined in the program.
 
+## Criteria
+
+The various criteria, and the expected inputs to the GitHub action parameters, are defined and documented in the [SDV Process definition repository](https://gitlab.eclipse.org/eclipse-wg/sdv-wg/sdv-technical-alignment/sdv-technical-topics/sdv-process/sdv-process-definition/-/tree/main/SDV_Process?ref_type=heads).
 
 ## Usage
 
@@ -11,7 +14,7 @@ To use this action, one simply needs to add the following steps in their release
 ```yaml
       # Call the quevee gh action to create the manifest file for SDV maturity assessment.
       - name: Collect quality artifacts
-        uses: eclipse-dash/quevee
+        uses: eclipse-dash/quevee@v1
         id: quevee
         with:
           release_url: ${{ steps.create_release.outputs.url }}
@@ -37,6 +40,8 @@ If one needs to provide several files for a given criterion, there are two optio
 * provide a comma-separated list of files, as shown for the artifacts_testing example above, or
 * provide an archive, with a separate github action step.
 
+If the requested artefact is not available, e.g. if the requirements tracing is not ready yet, the entry can be left empty. 
+
 An example of a step archiving artifacts can be:
 ```yaml
       - name: Gather Testing documents