The document summarizes data quality issues in Telstra's transmission network. It finds that alignment between inventory databases and operational support systems has fallen from 0.1% to 10%. Discrepancies identified between databases include incorrect element names, fabricated regenerator sections, and elements only appearing in one system. The impact on network planning is significant. Next steps include measuring the business impact, establishing a tolerable error level, and getting business support to reduce and maintain errors within tolerable limits.

1. Telstra Transmission Network Data Quality Summary January 2008

3. Summary, Network Element Alignment The following sets out the results for the NE level alignment analysis gathered over the period that the NEMO Audit capability has been in place

4. Summary, Trail Alignment The following sets out the results for the Trail level alignment analysis gathered over the period that the NEMO Audit capability has been in place

6. TRAC Unified MV38 J-ELS7-HAMX-C001 TRAC and MV38 ‘Disagree’ TRAC link connection imported but marked as DQ error Problems Range from ‘Benign’

7. TRAC Unified MV38 J-AC8A-NA2A-F001 Not in MV38 at all or not under that name Through Moderately Severe

8. TRAC Unified MV38 J-AMAO-UMUW-W101 No Regen sections in TRAC MV38 regenerator sections were fabricated when it was loaded Fabricated regenerator sections are marked as an error so they always fail. The reason is that they do not have a relationship with the cables (MV38 does not have this) and if they did not fail, a cable failure would not cause the mux section to fail To rather Serious

9. TRAC Unified MV38 J-BGNB-BRAA-Y101 TNMS  To Appalling