==What is this task?==
This task is used for planning and organizing only. To comment on the project or discuss it, please use one of the linked tasks instead.
==Description of the main objective==
Scope of the Initiative:
* Editor-defined intentional language fallbacks for Labels and Aliases (using the `mul` language code).
* Enhanced visibility of language fallbacks for Labels and Aliases in the editing UI.
* ~~Full language fallback support on mobile.~~ (now separate initiative)
Importance:
* Will reduce redundant Wikidata Labels and Aliases, benefiting infrastructure and the Wikidata community (see community task T285156).
* Current reliance on English as the sole generic fallback was not intentional or equitable.
* ~~Mobile users get proper language fallbacks for the first time.~~ (now separate initiative)
Documents:
* [[ https://docs.google.com/document/d/1-DTSEt-v4te-P5fFBXc34eeBI69-AtFYNoznEyEqHME/edit#heading=h.dzghc1wfabux | Product requirement document ]]
* [Intro slides for the team](https://docs.google.com/presentation/d/13wl6YXmJK0vXbIkiQA33ECX8dbZhKlrnfVlzmSeRsxk/edit#slide=id.p)
* {T312723}
==Achieved milestones==
**v0.1 Initial test release (test.wikidata.org)**
* {T297393}
* {T307808}
* {T312920}
* Release: {T297393}
**v0.2 Fix unexpected behavior (test.wikidata.org)**
* {T311617}
* {T311626}
* {T312107}
* {T312109}
* {T318137}
* Release: {T319288}
**v0.3 Make Special pages ready for `mul` language code (test.wikidata.org)**
* {T329626}
* {T330193}
* {T165870}
* {T313027}
* Release: {T313024}
**v0.4 Make desktop UX ready for `mul` language code (test.wikidata.org)**
* {T316767}
* {T329644}
* {T338302}
* {T340832}
* {T338330}
* {T316769}
* {T329763}
* {T343409}
* {T345083}
* {T312105}
* {T345751}
* {T345750}
* ~~Prepare the [help page](https://www.wikidata.org/wiki/User:Manuel_Merz_(WMDE)/Help:Default_values_for_labels_and_aliases)~~
* Release: {T329661}
==Next milestones==
**v1.0 Limited initial release (www.wikidata.org)**
* {T356169}
** {T356200}
** {T355059}
** {T356201}
** {T345883}
* {T330281}
** {T317515}
** {T304976}
* Release: {T312511}
**v1.1 Release for all editors (www.wikidata.org)**
* {T312176}
* Release: {T330280}
**v1.2 Optimizations & Clean up (www.wikidata.org)**
* {T330217}
* {T342274}
* Make sure the removal of existing labels does not degrade ElasticSearch result (and thus term lookup).
** Do matches in the UI language get ranked higher (T334563)? Maybe look into this/keep in mind!
* Release: {T342278}
**v1.3 All Wikibases**
* Ensure that the new functionality can be used on all Wikibases
* Release: {T342279}
==Out of scope==
* {T345276}
* {T347564} (The onboarding popup is only temporary, and not essential. )
* If there is more than one mul Alias, only the first is reused as a placeholder, followed by an ellipsis symbol.
* Make mobile UI ready for language fallback and `mul` language code (test.wikidata.org)** [Wikibase Product Platform Team]
** TASKS NEED TO BE UPDATED** TO MATCH v0.4
** {T312231}
** {T329781}
** {T330183}
** {T332174}
** {T332175}
** {T336781}
* Reactive updates (placeholders, heading)
* Fixing ORES
** This area will require work after MUL goes live (Michael)
** {T332021}
*** [Bonfire](https://docs.google.com/presentation/d/10tS_t2wkt24lHUKLMSjoC0mowhvbiTuS3F17bQ4noVU/edit#slide=id.p)
*** [Drive folder](https://drive.google.com/drive/folders/18bBnTFsioaX1LiwYNrcPowDiLdTVMnCf)
** We currently can't retrain our ORES models (Amir)
*** Focus on collaborating with WMF on making progress on the new LiftWing models for Wikidata
*** Quality model: T328813
*** Quality model: T321224
* {T342022}
* {T307274} Beyond the scope of MUL (e.g. including descriptions)
* {T340615} (only if needed)
** We should truncate the text of the MUL placeholders used for aliases in cases it's too long. A maximum of 2 lines of text should be displayed under all circumstances. Ellipsis will be used to indicate that the text was abbreviated.
* {T332705}
* {T332702}
* Warn about creating duplicate Labels / Aliases if already in mul.
** {T306918}
*** {T289474}
* {T303677} (redundancy reduction for descriptions)
* {T330197}
* “In more languages” / “In weiteren Sprachen“ is technically wrong
* Onboarding popup on all Wikibases (adding to T316769):
** The link target would then need to be defined by a new interface message (Mediawiki: namespace).
** By default this should lead to the mediawiki.org documentation (e.g. https://www.mediawiki.org/wiki/Wikibase/Mul) [e.g. to be owned by suite in the future]
** On Wikidata this will be modified (e.g. to https://www.wikidata.org/wiki/Special:MyLanguage/Help:Mul)
* {T330195}
**Not done**
* {T135871} (note: avoided work on the legacy jQuery code in hopes of more long-term sollution)
* T329626#8636979 "Make Special:SetDescription ready for `mul` language code" (note: works alright as is)
* Multiple `mul` variants for different scriptures
* {T332177} mobile does not work as is, so no dot is required just for WD
==Links==
* [Language fallback chain on Wikidata](https://www.wikidata.org/wiki/Help:Navigating_Wikidata/User_Options#Language_fallback_chain)
** [Visualization](https://upload.wikimedia.org/wikipedia/commons/2/26/MediaWiki_fallback_chains.svg)
* [How does Universal Language Selector determine which languages I may understand](https://www.mediawiki.org/wiki/Universal_Language_Selector/FAQ)
* [Statistics by Nikki](https://www.wikidata.org/wiki/User:Nikki/Terms)