Issues

• Consider common base type for variable and unit cascades

  enhancement
  ddialliance/ddimodel#117 · Filter by author DanSmith opened on Oct 8, 2026 · DDI Lifecycle 4.1

• Allow additional DDI value types in user attributes

  enhancement
  ddialliance/ddimodel#116 · Filter by author DanSmith opened on Oct 7, 2026
  

• Simplify VersionRationaleType

  simplification
  ddialliance/ddimodel#111 · Filter by author DanSmith opened on Oct 3, 2026

• GenerationInstruction composition: how to manage, share and reuse scripts?

  ddialliance/ddimodel#109 · Filter by author NicoLaval opened on Sep 1, 2026
  2

• How should a short programmatic name for a dataset be represented?

  ddialliance/ddimodel#108 · Filter by author NicoLaval opened on Aug 21, 2026
  2

• Is GenerationInstruction the right place for dataset transformation code?

  ddialliance/ddimodel#107 · Filter by author NicoLaval opened on Aug 21, 2026
  1

• Variable representation: managed reference and per-variable bounds cannot be combined in DDI-L 3.3

  ddialliance/ddimodel#106 · Filter by author NicoLaval opened on Aug 20, 2026
  4

• VariablesInRecord children

  ddialliance/ddimodel#105 · Filter by author NicoLaval opened on Aug 20, 2026
  3

• URNType, MaintainableObjectType, and EmptyType are not used and should be removed

  bug
  ddialliance/ddimodel#99 · Filter by author DanSmith opened on Aug 6, 2026 · DDI Lifecycle 4.0
  1

  

• ResourceUsedType is never used

  bug
  ddialliance/ddimodel#98 · Filter by author DanSmith opened on Aug 6, 2026 · DDI Lifecycle 4.0
  3

  

• StructuredCommandType should be removed or a default descendant added

  bug
  ddialliance/ddimodel#97 · Filter by author DanSmith opened on Jul 21, 2026 · DDI Lifecycle 4.0
  7

  

• Consolidate Measurement item references

  bug
  ddialliance/ddimodel#93 · Filter by author DanSmith opened on Jul 16, 2026 · DDI Lifecycle 4.0
  1

  

• one Statistical Classification variant for many Statistical Classifications

  ddialliance/ddimodel#92 · Filter by author georgmettas-blip opened on Jul 1, 2026
  3

• Data capture using AI

  enhancement
  Feature

  ddialliance/ddimodel#90 · Filter by author wlthomas opened on Jun 17, 2026 · DDI Lifecycle 4.1
  1

• Cardinality limit for Methodology

  ddialliance/ddimodel#89 · Filter by author romaintailhurat opened on Jun 15, 2026
  7

• Using Concept best practice

  help wanted
  Task

  ddialliance/ddimodel#88 · Filter by author spuddybike opened on Jun 5, 2026
  3

• hasTopConcept for concept systems

  enhancement
  ddialliance/ddimodel#87 · Filter by author DanSmith opened on Jun 4, 2026
  2

• Extend ManagedMissingValuesRepresentation

  Feature

  ddialliance/ddimodel#86 · Filter by author duffgui opened on May 22, 2026
  7

• Additional field for Instruction

  enhancement
  Feature

  ddialliance/ddimodel#85 · Filter by author spuddybike opened on May 15, 2026

• Changing variable / concept cardinality in a possible 3.4 Lifecycle version

  ddialliance/ddimodel#77 · Filter by author romaintailhurat opened on Feb 26, 2026
  6

• Unit Cascade: Population as its own item

  enhancement
  ddialliance/ddimodel#76 · Filter by author BissonStatCan opened on Jan 30, 2026 · DDI Lifecycle 4.0
  8

  

• Documentation is limited to model content - need a usage guide

  ddialliance/ddimodel#74 · Filter by author wlthomas opened on Jan 26, 2026 · DDI Lifecycle 4.0
  1

• Variable names are multilingual, and used as locators

  enhancementsimplification
  ddialliance/ddimodel#66 · Filter by author DanSmith opened on Sep 11, 2025 · DDI Lifecycle 4.1
  3

• Simplify organization relations, Allow direct Affiliation link from Individual to Organization

  enhancementsimplification
  ddialliance/ddimodel#63 · Filter by author DanSmith opened on Jul 22, 2025
  1

• Simplify relationship structures and over-identification

  enhancementsimplification
  ddialliance/ddimodel#55 · Filter by author DanSmith opened on Dec 6, 2024 · DDI Lifecycle 4.1