GIS Maintenance & Tips Jennifer Kuchar. Maintenance is often the bottleneck of the entire GIS...

GIS Maintenance & Tips

Jennifer Kuchar

Maintenance is often the bottleneck of the entire GIS Enterprise

E911

Planning & Zoning

Surveyor

Auditor

Recorder

Assessor

ParcelData

Who is responsible for maintenance?

There are several possible configurations!

Database Design and Infrastructure

Preparation: Understand the current workflow– Take an inventory of documents– Make diagrams : Entity-Relationship & Network

Critique – Ways to improve efficiency– Communication

Decisions– Make a plan and designate a coordinator– Set Goals and a Timeline

Implementation– Contingency Plan– Training

Aftermath– Analysis– Maps

Maintenance Tips

Use the Geodatabase Model– Central Storage– Feature Datasets

Reduce the number of GIS layers “actively” maintained – relationships, domains, and subtypes

Integrate the Tax/CAMA systems with the GIS Utilize the customization abilities in ArcGIS to create

routines or tools that minimize steps– Model Builder

Spatial Relational Database Management Systems

RDBMS Types of data

– Numeric– Text– Yes/no– Date

Very Powerful– The “glue” of the GIS Precinct

Landuse

PIN

Planning

PINAgriculture

Assessment

PINZoning

Address Zoning

Assessment

Geodatabase Rules

Domains: acceptable values – Range– Coded Values

Subtypes: classification of features within feature class

Relationship Classes: defines a set of valid associations between two feature classes or tables

Domains

Created in Geodatabase or through ArcToolbox

Add the Coded value or Range of values

Associate Domain to a feature class

570 Parcel Number Point 50571 Parcel Number Point 100572 Parcel Number Point 400579 Parcel Number Condo 100580 Parcel Number Condo 400578 Parcel Number Condo 50

Subtypes

One Feature Class– Subtype associated to FC field

Working with subsets– substitutions

Default subtype Annotation Tools in Arc

Relationship Classes

Tag Data Model

Coincident Geographic Features– The solution is Multiple Feature Tagging

214 Lot

214 Parcel

214 ROW

214 Subdivision

OID Tag

Alpha Tag

Problem Solution

Cadastral Feature Class

ParcelROWLotSubdivision

Table

1 to Many Relationship

One Base File Many New Layers

One Parcel… Many Attributes

Description

Acreage

Deed

Plat

Imp. Value

Land Value

Parcel Number

Description

Landuse

Building Characteristics

Agriculture

Parcel Number

PictureTax Appraisal

Join, Relate, or

View

PIN = 10-01-300-001

Integration with Tax/CAMA Systems

Workflow

Draw Boundaries

Enter Core Parcel Data Once

Build Feature Classes

Publish Maps

Complete CAMA Data Entry

Roll Data to Tax Administration

Thank-you for your time

Jennifer KucharProject ManagerThe Sidwell Company675 Sidwell CourtSt. Charles, Illinois 60174-3492 phone: (630) 549-1086fax: (630) 549-1111email: JKuchar@sidwellco.comwebsite: http://www.sidwellco.com