Process 4
Saving upgraded spatial data back to GIS / IT Environment
This is the second Process that needs to be written by the client. This process is site specific and would normally display, edit and check the data back into the corporate GIS environment. This may mean:
• The upgraded data is held as an additional version of the original features
• The upgraded data is held as an additional theme
• The GIS may need some development to show the upgraded themes with a predefined legend
• Additional drivers may be needed

All the local business rules for data integrity and connectivity come into play at this point.

This may mean:
• Certain data is populated before new versions can update current features
• There may be a certain order in which the data needs to be written to the GIS

One can expect any legacy data issues to be detected against more recent business rules.

This may mean:
• Topology Rules added subsequent to older data may preclude the upgraded data from being checked back into the GIS until the new rules are met
• The destination digital cadastre may need to be filtered before loading
• Parcel Arcs may need to be identified as arcs???

Occasionally some features (less than 0.5%) can be expected to have an adjustment error that needs to be fixed manually.

This may mean:
• The original digital cadastre may totally irrelevant due to a major construction such as a shopping mall
• Odd instances such as lights on a headland can be problematic if the shape of the headland changes significantly as the coastline is updated
• The upgraded data is incorrect due to incorrect previous cadastre – e.g. poor digitising
• That a road widening and subsequent reconstruction of the utility assets invalidates to upgrade situation

This may be an iterative process due to local data integrity rules and spatial data connectivity rules. Some of these rules may only be available during the check-in process, and if any rules are broken an error message is returned and the data rolled back out of the database. Hence errors can only be fixed as reported, making the process iterative in nature.
The availability of high resolution orthophotography and SAM’s ability to display this will help the process of finding and fixing these problems.