Migration from Legacy systems

Matjaz Jug

Statistics New Zealand

paper for Topic (ii) Streamlining statistical production


Statistics NZ relies on technology to deliver its statistics. A major threat to the continued supply of core statistics is Statistics NZ’s aging IT technology and processes. Ongoing committed investment is required to ensure our technology environment remains responsive, relevant, and a foundation to a sustainable organization. Statistics NZ has over the years evolved a very complex technology environment with over 250 separate statistical production systems supporting around 80 core statistical outputs. To assure business continuity it was urgent to systematically replace and update outdated technology. In 2009 Statistics NZ established Legacy Mitigation programme with a purpose to consolidate the number of technologies within the operating environment, migrate to newer supported technology, and retire out-dated systems. This work is now part of Stats 2020 – Te Kāpehu Whetū programme which has been established to rebuild and transform our systems and processes. Paper will provide real examples showing approach, progress to date and lessons learned during the first four years of the implementation of the Legacy Mitigation work.