Migration from Legacy Systems

Migration from Legacy Systems

Addressing risks, realising opportunities, and creating an agile,

responsive, and sustainable IT environment

Meeting on the Management of Statistical Information Systems, 23-25 April 2013

Agenda

Legacy applications risksOur JourneyAchievementsLessons learnedQuestions

2

3

200080’s and 90’s technology

.

4

5

2003New technology

Platform

200080’s and 90’s technology

Legacy is a Business Risk

7

2003New technology

Platform

200080’s and 90’s technology

2004-2007BMTS Platform

developlent

BmTS Deliverables

A number of standard, generic end-to-end processes for collection, analysis and dissemination of statistical data and information.A disciplined approach to data management, using a standard information lifecycle for all statistical data and information across the organisation.An agreed enterprise-wide technical architecture which would build up "over time a portfolio of standard solutions and components".

8

Change of Plan

Over the next two years (2008 - 2010) focus on the preparation of a robust Investment Case, for separate funding of the BmTS development;Focus will continue on standardising processes or methods, using technology as an enabler only when the value is proven;While there will be no further direct software development of BmTS Components, projects will still be encouraged to adopt proven deliveries, and a team will work to ensure that the wider organisation is made aware of these deliverables

9

10

2003New technology

Platform

200080’s and 90’s technology

2004-2007BMTS Platform

developlent

2008Analysis of situation

Legacy is a Business Risk High

Low

HighLow Business Imperatives

Risk

Centura (Sybase), VB, C++Access

Supercross,

SAS, Blaise, Excel

dotNet (SQL)

HLFS Sprocet (Notes)

Notes

500,000

30

200+

unknown

5

1

2

3

unknown

2

Options in 2008

Take no specific action and rely on obtaining funding;'Migrate All';'Redevelop All';Undertake a phased, multifaceted approach to resolution.

12

13

2003New technology

Platform

200080’s and 90’s technology

2004-2007BMTS Platform

developlent

2008Analysis of situation

2009Legacy

Roadmap

Legacy Roadmap(version 1)

15

2003New technology

Platform

200080’s and 90’s technology

2004-2007BMTS Platform

developlent

2008Analysis of situation

2009Legacy

Roadmap

2009IT Strategy 2009-2012

Statistical clusters

.

16

Household survey platform

.

17

Integration in Enterprise Architecture

18

2003New technology

Platform

200080’s and 90’s technology

2004-2007BMTS Platform

developlent

2008Analysis of situation

2009Legacy

Roadmap

2009IT Strategy 2009-2012

2011Statistics

2020

Te Käpehu Whetü - Statistics 2020

…

19

A waka is navigated by aligning the points of the craft with the points on the horizon where the sun and particular stars rise and set

Time is ticking

.

20

Achievements

21

HLFS in dual run on HH platform

Beyond 2020 has been replaced with

NZ.stat

Overseas Trade in Micro Economic Platform

Business surveys are being migrated

to Collection Platform

Lessons learned

Don’t assume a single source of complete information;Expect to uncover issues as we look into these older systems;Be prepared to continually re-plan as new items come to light;Work closely with partners (business owners, data archiving, architects)Communications - keep the message alive (success stories);Test, test, test (especially the translated code)

22

23

2003New technology

Platform

200080’s and 90’s technology

2004-2007BMTS Platform

developlent

2008Analysis of situation

2009Legacy

Roadmap

2009IT Strategy 2009-2012

2011Statistics

2020

2012IT Strategy

2012-16

Statistics NZ IT Strategy 2012-2016

“Focused on our future and making IT real.”