Issues to Consider When Starting a GIS Project - PowerPoint PPT Presentation

1 / 59
About This Presentation
Title:

Issues to Consider When Starting a GIS Project

Description:

How would we like it solved? Are there alternate ways of solving by using a GIS? ... Driving Directions. Issue 1: Identify Your Objectives. SM ... – PowerPoint PPT presentation

Number of Views:145
Avg rating:3.0/5.0
Slides: 60
Provided by: And6207
Category:

less

Transcript and Presenter's Notes

Title: Issues to Consider When Starting a GIS Project


1
Issues to Consider When Starting a GIS Project
  • Andy Schmidt
  • GIS Technician

2
Issues To Consider Ina GIS Project
  • 1. Identify Your Objectives
  • 2. Technical Considerations
  • 3. Who Will Create the GIS?
  • 4. Designing a GIS
  • 5 . Data Needs, Design and Capture
  • 6. Analyzing the Data and Presenting the Results
  • 7. Project Life Cycle

3
Issue 1Identify Your Objectives
4
What Is the Problemto Solve With a GIS?
Issue 1 Identify Your Objectives
  • How is it solved now?
  • How would we like it solved?
  • Are there alternate ways of solving by using a
    GIS?

5
What Is the Needfor a GIS?
Issue 1 Identify Your Objectives
  • How can GIS technology be implemented effectively
    to streamline existing functions?
  • How can it change the way a particular goal is
    achieved?

6
What Are the FinalProducts of a GIS?
Issue 1 Identify Your Objectives
  • Presentation of quality maps and map books
  • Working maps
  • Internet maps
  • Reports and charts
  • A system that ties multiple facets into an easy
    to use application that allows all users to
    access the data they want and need from a central
    location

7
Who Is the Intended Audience?
Issue 1 Identify Your Objectives
  • Decision Makers/Management
  • Technicians
  • Planners
  • Engineers
  • System Operators
  • Customers
  • Public

8
What Is the PrimaryUse of the Data?
Issue 1 Identify Your Objectives
  • Facility Locating
  • Customer Locating
  • System Inventory
  • Analysis of Your System

9
Will the Data Be Usedfor Other Purposes?
Issue 1 Identify Your Objectives
  • Modeling the System
  • Phase Tracing
  • Outage Management
  • Staking Sheet Generation
  • Driving Directions

10
What are the Requirements of These Other Purposes?
Issue 1 Identify Your Objectives
  • Additional Software
  • Quality Updated Data
  • Good Data Management
  • Customization

11
What Are the Goalsof the Project?
Issue 1 Identify Your Objectives
  • Short (0-2 years)
  • Medium (1-5 years)
  • Long (5 years)
  • Getting essential data into the GIS
  • Fix holes in data
  • Fix incorrect data
  • Modeling
  • Adding additional data
  • Link to other software
  • Advanced analysis of the system
  • Integration of GIS to many other systems

12
Do You Plan to Start Small Then Expand?
Issue 1 Identify your Objectives
  • Start with a circuit, substation or predefined
    area then expand from it
  • Convert whole systems starting with a specific
    device
  • What is the expansion schedule or timeline?
  • What are the most critical areas?

13
Issue 2 Technical Issues
14
What Computing Environment Are You Using?
Issue 2 Technical Issues
  • Windows NT, 2000, XP
  • Unix Workstation
  • Mixed Environment

15
What GIS Software WillYou Be Using?
Issue 2 Technical Issues
  • May depend on your computing environment
  • May depend on previous experience with a vendor

16
Key Factors in Choosinga Vendor
Issue 2 Technical Issues
  • Stability
  • Leadership in the Industry
  • Integration of Existing Legacy Systems
  • Partnerships or Long Term Alignments
  • Development
  • Flexibility
  • Open Architecture
  • Customizable
  • Out of the box software should do 75 of what you
    want it to do
  • Cost and Maintenance Agreements

17
Key Factors in Cost
Issue 2 Technical Issues
  • Hardware
  • Software
  • Upgrades
  • Software Maintenance Agreements
  • Conversion
  • Development
  • Ability to Drive Technology Change
  • Organizational Size and Position of Resources
  • Scope Change
  • Revisions

18
Other Technical Issues
Issue 2 Technical Issues
  • How many people are responsible for making
    changes to the data?
  • Single editor
  • Multiple editors at one location
  • Multiple editors accessing a server
  • Who will be accessing the data?
  • Single user
  • Multiple users at one location
  • Several users at different locations using the
    internet

19
Issue 3 Who Will Create the GIS?
20
Who Will Create the GIS?
Issue 3 Who Will Create the GIS
  • In-House
  • Consultant
  • Combination of In-House employees and Consultants

21
In-House
Issue 3 Who Will Create the GIS
  • Set up a GIS Steering Team
  • Leaders and managers.
  • Experts in the areas you want to incorporate.
  • Dedicate the people to do the work
  • Implications
  • Will the employees only be dedicated to the GIS?
  • Do you have to hire new people to replace those
    working on the GIS?
  • Will dedicating the employees to GIS hinder the
    jobs of other employees?
  • Do they really want to work on the GIS?
  • Are there people trained to do GIS work?

22
Consultant
Issue 3 Who Will Create the GIS
  • Set up a GIS Steering Team
  • Dedicate a Contact Person
  • Key member of the GIS Team
  • Knowledge of all parts of the system
  • Available throughout the process
  • Passionate about the project

23
Consultant
Issue 3 Who Will Create the GIS
  • Choose the Consultant
  • Has extensive knowledge of GIS and the electric
    utility
  • Capable of doing what you want them to do
  • Visit with them to see what they have done
  • Ask others about the consultant - references

24
Consultant
Issue 3 Who Will Create the GIS
  • Set up Timeline of Deliverables
  • Area check copies
  • Initial conversion completion
  • Updates
  • System integration and takeover

25
Combination of In-House Employees and Consultants
Issue 3 Who Will Create the GIS
  • Set up a GIS Steering Team
  • Determine Who Does What
  • Only Work on What Has Been Agreed Upon
  • Agree on Timelines and Deliverables and Remember
    the Goals
  • Work Together Not Against Each Other
  • Correspond Frequently

26
Issue 4 Designing a GIS
27
Plan, Plan and Plan!
28
Objectives of Design
Issue 4 Designing a GIS
  • Results in a Well-Constructed Operational
    Database That
  • Satisfies objectives and supports organizational
    requirements
  • Contains all necessary data but no redundant data
  • Organizes data so that different users can access
    the same data
  • Accommodates different views of the data
  • Distinguishes which applications maintain the
    data from which applications access the data
  • Appropriately represents, codes and organizes
    graphical features

29
Benefits From Good Design
Issue 4 Designing a GIS
  • Although Time Consuming
  • Increased flexibility of data retrieval and
    analysis
  • Increased likelihood of users developing
    applications
  • Decrease time in attributing data
  • Data that supports different users and uses
  • A system that readily accommodates future
    functionality
  • Minimized data redundancy

30
Design Guidelines
Issue 4 Designing a GIS
  • Involve users
  • Educate users in what a GIS can do
  • Take it one step at a time
  • Build a team
  • Be creative
  • Create deliverables
  • Keep goals and objectives in focus
  • Do not add detail prematurely
  • Document carefully
  • Be flexible
  • Plan from your model

31
Data Modeling
Issue 4 Designing a GIS
  • Model the Users View of Data
  • Identify organizational functions
  • Determine data needed to support functions
  • Organize data into local groups
  • Define Objects and Relationships
  • Identify and describe objects
  • Specify relationships between objects
  • Document model in diagram

32
Data Modeling
Issue 4 Designing a GIS
  • Select Geographic Representation
  • Represent data with discreet features
  • Points, Lines and Polygons
  • Characterize continuous phenomena with rasters

33
Data Modeling
Issue 4 Designing a GIS
  • Match Data to Spatial Elements
  • Determine geometry type of discrete features
  • Specify relationships between features
  • Implement attribute types for objects

34
Data Modeling
Issue 4 Designing a GIS
  • Organize Database Structure
  • Organize system of features
  • Define topological associations
  • Assign coordinate systems
  • Define relationships, rules and domains

35
Issue 5 Data Design, Needs and Capture
36
Data Design
Issue 5 Data Design Needs and Capture
  • Identify the Spatial Data Needed
  • Land-base
  • Facility
  • Determine the Required Feature Layers
  • Roads, Municipals, Water features, Parcels
  • Conductor, Transformer, Consumer, Poles

37
Data Design
Issue 5 Data Design Needs and Capture
  • How Current Must the Data Be?
  • For planning, the most current data may be
    required
  • For general mapping, data may be a few years old
  • What Data Do I Have?
  • Digital
  • Paper records
  • Is it in a usable format?
  • Can it be converted?

38
Data Acquiring
Issue 5 Data Design Needs and Capture
  • Where can I Get Missing Data From?
  • Government entities (DOT, DNR, LMIC, County, and
    Municipal)
  • Other utilities
  • Other consultants
  • GPS
  • Aerial photos
  • DRG's (digital raster graphics)

39
Data Acquiring
Issue 5 Data Design Needs and Capture
  • How Much Are We Willing to Pay for Data?
  • Most entities charge for data
  • Most entities request data sharing agreements
  • When Do You Need the Data?
  • Off-the-shelf" data sets can be acquired in one
    to two business days
  • Custom sets may take weeks to prepare

40
Data Acquiring
Issue 5 Data Design Needs and Capture
  • Will You Need Periodic Data Updates and How
    Frequently?
  • Complete replacements
  • Transactional updates (changes only)
  • It is best to negotiate a maintenance schedule
    with the initial data license

41
Data Specifics
Issue 5 Data Design Needs and Capture
  • Determine the Level of Detail Needed
  • More detail or a large scale like 124,000
  • Less detail or small scale like 11,000,000
  • Select the Map Area Boundary
  • Company service area
  • County/Township/Municipal region
  • Buffered region incase of expansion
  • Determine The Level of Geography You WantTo
    Examine
  • Service area
  • Township
  • Section
  • Quarter section
  • Miscellaneous detail areas

42
Choose the CoordinateSystem and Units
Issue 5 Data Design Needs and Capture
  • Coordinate Systems
  • UTM
  • State plain
  • County coordinates
  • Custom
  • Units
  • Meters
  • Feet
  • Decimal degrees

43
Choosing the Attributes
Issue 5 Data Design Needs and Capture Continued
  • Choose the Attributes Each Feature Needs.
  • Identifiers of Cooperative or Company
  • Identifiers of substation
  • Identifiers of circuit
  • Identifiers of device (Must have a UNIQUE ID such
    as Device or Account )
  • Very Important. Make sure there is a
    non-duplicate unique ID for every device in order
    to tie to other software or data

44
Data Representation
Issue 5 Data Design Needs and Capture
  • Numbering System
  • Pole to Pole

45
Data Representation
Issue 5 Data Design Needs and Capture
  • Grid System

Joe Smith is located at T 101 R 32 Section 01
Grid 8 Sub grid 6 ID 10132010806
46
Data Representation
Issue 5 Data Design Needs and Capture
  • Real World Coordinates
  • XY or Latitude Longitude
  • Each feature has it own real-world coordinate

47
Data Representation
Issue 5 Data Design Needs and Capture
  • Choose the Way You Want to Represent The Data
  • Color
  • Symbology g h j k w r
  • Annotation or Labels Name Name Name NAME
  • Offsets of Features

48
Automation of Data
Issue 5 Data Design Needs and Capture
  • Converting existing data from other systems and
    formats into the same format
  • Digitizing data from paper
  • Adding GPS data
  • Data entry of attributes
  • Creating topology and connectivity

49
Automation of Data
Issue 5 Data Design Needs and Capture
  • Putting additional spatial data into real world
    coordinates
  • Join adjacent data sets
  • Updating data sets
  • Verifying data with GPS
  • Perform QA/QC
  • Correct locations
  • Correct attributes
  • Connectivity

50
Conversion Issues
Issue 5 Data Design Needs and Capture
  • Keep project goals in mind
  • Do not add additional requirements until initial
    requirements are met
  • What you put in is what you get out of a GIS
  • Stick with one software or vendor until
    conversion is completed

51
Issue 6 Analyzing the Data and Presenting the
Results
52
Analyzing Data
Issue 6 Analyzing the Data and Present the
Results
  • Referred to as Spatial Modeling
  • A Model is a Representation of Reality To
  • Simulate a process
  • Predict an outcome
  • Analyze a problem
  • Models in a GIS
  • Connectivity
  • Tracing up stream and down
  • Proximity calculations
  • Common ancestor finding

53
Presenting Results
Issue 6 Analyzing the Data and Present the
Results
  • Project should effectively communicate your
    findings to your audience
  • Create paper map books
  • Create digital map books
  • Internet mapping
  • Wall maps
  • Create charts and reports
  • Give demonstrations

54
Training Users
Issue 6 Analyzing the Data and Present the
Results
  • In-House
  • Software Vendors
  • Consultants
  • Conferences
  • Internet Classes
  • Local Colleges and Vocational Schools

55
Issue 7 Project Life Cycle Issues
56
Problems That MightCause a GIS to Fail
Issue 7 Project Life Cycle Issues
  • GIS perceived as only a automated mapping tool to
    replace manual mapping
  • People do not want to change
  • Inadequate quality control
  • Cannot access system or data
  • Poor project implementation
  • Unrealistic expectations
  • Poor training
  • Failure to plan on how to maintain the GIS data
    and operations
  • Project cost overrun
  • Scope change, adding premature detail

57
Conclusions
  • When Starting a GIS
  • Identify your objectives for the project
  • Examine software, hardware and vendors
  • Determine who will create the GIS
  • Determine the design
  • Determine data needs how to acquire
  • Train users
  • Stay focused on the goals

58
These steps and Planning as a Team to meet the
Goals will help insure a GIS that will be Useful
to all users as well as Cost Effective to the
company.
59
Questions?
Write a Comment
User Comments (0)
About PowerShow.com