Relationship tables work as a path for the system to follow when looking at data across different administrative versions, e.g., comparing ML_1983 to ML_2016.
Preparing tables
Relationship tables should be completed before they are uploaded.
To prepare a relationship table for upload:
Find the relevant relationship table spreadsheet.
Go to flow chart tab and copy paste the appropriate data set by set (FNID, Admin name, relationship type, etc) starting from left to right
Copy all the relationship for changes from 1993-1996 from top to bottom
Once you finish that, copy all the relationships for changes from 1996-1997, etc.
This makes sure the data are ordered chronologically
For cases where there is only one start row that splits into multiple rows in the flow chart (Splits, redistributes, etc), make sure you copy the starting information for each individual split
Copied information
Copy start information for second row
Upload Requirements
Relationship table sheet must be first in the workbook (farthest left)
Relationship table has to follow exact format below from_name, from_fnid,relationship type, to_name, to_fnid
Older FNID goes on the left hand side, newer FNID goes on the right
Relationship Types must be one of predefined options
Successor
This means that there was no change or barely any change in this administrative unit between geographic unit set versions
Aggregate
An administrative unit becomes a higher level administrative unit
Admin2 becomes Admin1
Redistribute
Parts of a administrative unit were divided to become a part of new administrative units
Demotion
An administrative unit becomes a lower level administrative unit
IE Admin1 become Admin2
Merge
Parts of, or the whole of two or more administrative units joined together to create a new administrative unit
Split
An administrative unit is divided in two (almost perfectly) to form new administrative units
There must only five rows of information
If there are multiple relationship sets, the oldest start-years are listed first, and when all relationships for that year are done, begin again for the next set
Uploading to FDW
Log in to FDW
Under Metadata Management
Spatial-Geographic Unit Relationships
Click Import Geographic Unit Relationships
Choose file
Format: .XLS (x)
Click Submit
Confirm Import