diff --git a/README.md b/README.md
index f4f2481..56e255b 100644
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@@ -1,49 +1,42 @@
 swh-indexer
 ============
 
 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
 - extracting information from those objects
 - store those information in the swh-indexer db
 
 There are multiple indexers working on different object types:
   - content indexer: works with content sha1 hashes
   - revision indexer: works with revision sha1 hashes
   - origin indexer: works with origin identifiers
 
 Indexation procedure:
 - receive batch of ids
 - retrieve the associated data depending on object type
 - compute for that object some index
 - store the result to swh's storage
 
 Current content indexers:
 
 - 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)