diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -4,12 +4,10 @@
 Tools to compute multiple indexes on SWH's raw contents:
 - content:
   - mimetype
-  - ctags
-  - language
   - fossology-license
   - metadata
-- revision:
-  - metadata
+- origin:
+  - metadata (intrinsic, using the content indexer; and extrinsic)
 
 An indexer is in charge of:
 - looking up objects
@@ -32,18 +30,13 @@
 - mimetype (queue swh_indexer_content_mimetype): detect the encoding
   and mimetype
 
-- language (queue swh_indexer_content_language): detect the
-  programming language
-
-- ctags (queue swh_indexer_content_ctags): compute tags information
-
 - fossology-license (queue swh_indexer_fossology_license): compute the
   license
 
-- metadata: translate file into translated_metadata dict
+- metadata: translate file from an ecosystem-specific formats to JSON-LD
+  (using schema.org/CodeMeta vocabulary)
 
-Current revision indexers:
+Current origin indexers:
 
-- metadata: detects files containing metadata and retrieves translated_metadata
-  in content_metadata table in storage or run content indexer to translate
-  files.
+- metadata: translate file from an ecosystem-specific formats to JSON-LD
+  (using schema.org/CodeMeta and ForgeFed vocabularies)