| LS | Title | From | To | Approval date |
| SG16-LS188 | LS/r on invitation to review Big Data Standardization Roadmap and provide missing or updated information (SG13-LS122) [to ITU-T SG13] | SG16 | SG13; | 2020-07-03 |
| SG3-LS77 | LS/o on ITU-T SG3 work on Big Data [to ITU-T SG13] | SG3 | SG13; | 2020-04-09 |
| SG11-LS136 | LS/r on invitation to review Big Data Standardization Roadmap and provide missing or updated information (SG13-LS122) | SG11 | SG13; | 2020-03-13 |
| SG20-LS140 | LS/r on invitation to review Big Data Standardization Roadmap and provide missing or updated information (SG13-LS122) | SG20 | SG13; | 2019-12-06 |
| SG13-LS122 | LS on invitation to review Big Data Standardization Roadmap and provide missing or updated information | SG13 | OASIS; TM Forum; ISO/IEC JTC1/SC27; W3C; ISO/IEC JTC1/SC38; DMG; SG3; SG16; SG17; SG20; ISO/IEC JTC1/SC32; ISO/IEC JTC1/SC42; ITU-D SG 2; ITU-D SG 1; SG11; | 2019-10-25 |
| SG13-LS123 | LS on new ITU-T Recommendation Y.3603 " Big data - Requirements and conceptual model of metadata for data catalogue" | SG13 | ITU-D SG 2; ITU-D SG 1; SG3; SG11; SG16; SG17; SG20; ISO/IEC JTC1/SC42; | 2019-10-25 |
