Why ‘lineage’ is important to linear asset management · 2015. 3. 24. · Linear Infrastructure...
Transcript of Why ‘lineage’ is important to linear asset management · 2015. 3. 24. · Linear Infrastructure...
Why ‘lineage’ is important to linear asset management
Johan Nel
Nick Thatcher
Linear Infrastructure Asset Management
• Working definition: (Cagle, R. F. (2003). "Infrastructure Asset Management: An Emerging Direction“)
– Assess what you have
– Assess Condition
– Assess the financial burden to maintain targeted condition
• Maintain systematic record.
– Lifecycle (Acquisition, Maintenance, Disposal)
Lyn Provost Controller & A-G Office of Auditor General (OAG) (NZ) 7 Nov 2014
http://www.oag.govt.nz/2014/assets/docs/water-and-roads.pdf
However, I am concerned that some local authorities might not have the capacity for the increasing sophistication of information needed to keep delivering essential everyday services to communities affordably.
NZ
Auditor-General Reports NSW
http://www.audit.nsw.gov.au/publications/performance-audit-reports/2012-reports/monitoring-local-government/monitoring-local-government
When compared to some other jurisdictions, New South Wales lacks the same level of assurance that councils comply with the Act, are financially viable and provide efficient and effective services to residents and ratepayers.
Peter Achterstraat Auditor-General Audit Office of NSW 26 Sept 2012
Performance Audit Monitoring Local Government
Asset Lifecycle
• Auditor
• How to prove the asset history
• Acquisition (how do you know)
• Management (entire history including pipe breaks, pipe joins)
• Need spatial component to give a valid asset definition at any point in time.
Definition: Data Lineage
• Nothing to do with Family Tree / Ancestry
• Data lineage is generally defined as a kind of data life cycle that includes the data's origins and where it moves over time. This term can also describe what happens to data as it goes through diverse processes. Data lineage can help with efforts to analyse how information is used and to track key bits of information that serve a particular purpose. (Techopedia)
Definition
• But What does this actually mean
– Where does the data come from
– How has it changed over time
– How hard can it be
Maintenance Management
Complications
• Different Systems
As Constructed GIS
Financial Asset Management Asset
Management
Planned Maintenance
Reactive Maintenance
Asset Lifecycle Accumulates History
Finance
Reactive Maintenance
Maintenance Management
Planned Maintenance
Rel
ine
GIS
Asset
Work Order
Finance
Asset Lifecycle
1 Asset
3 Assets
1 Retired Record
Asset Lifecycle Accumulates History
Finance
Reactive Maintenance
Work Order Management
Planned Maintenance
Rel
ine
GIS
Asset
Work Order
Finance
Issues
• GIS ID’s
• Asset Id’s – Re-Use Existing ID?
• How to assign Maintenance history
– Retire Existing create new • Assign Maintenance history based on location
• Identifiers – Paper based history
– System Generated vs Manual ID’s
Lineage Requirements
• GIS Data e.g. pipe
• Status
• Transaction Table (Monitor function)
• History Table (Archive function)
• Views to complete the picture
• Web services to provide integration
Lineage – Break
GID = 100
GID = 101 GID = 102
PARENT GID = 100 PARENT GID = 100
Lineage – Join
GID = 101
GID = 101 GID = 102
PARENT GID = 101
Lineage – Break / Join (Post) GID = 100
GID = 201 GID = 202
PARENT GID = 100 PARENT GID = 100
GID = 101
GID = 203 GID = 204
PARENT GID = 101 PARENT GID = 101
GID = 202
PARENT GID = 100
PARENT GID = 202
Web Services Integration
• Asset / Work Order management • Methods
– Add – Dispose – Split – Merge – Update
• Issues for Asset management – Financial allocation – Maintenance History allocation
Conclusion
• Lineage is fundamental to prove the proper metadata history of an asset.
• Geometric lineage required to represent the entire asset history
• Valuation and reporting of assets without geometric asset lineage is guesswork at best.