Presentation is loading. Please wait.

Presentation is loading. Please wait.

KEYS TO SUCCESS DATA PREPARATION AND ORGANIZATION.

Similar presentations


Presentation on theme: "KEYS TO SUCCESS DATA PREPARATION AND ORGANIZATION."— Presentation transcript:

1 KEYS TO SUCCESS DATA PREPARATION AND ORGANIZATION

2 Session Discussion Topics Where Do I Get Data? ESRI Data Formats to Use Functions of the software differ with formats Folder Structure to Organize My Data How do I organize and share my data with others?

3 What Data Do I Need? SchoolSite Redistricting Students Study Areas Schools Streets (only for geocoding purposes) SchoolSite Projections All of the above data layers, plus… New development (tract) Non-GIS factors (ie. birth data, etc.)

4 Where Do I Get Data? County/Cities Regional Planning Agencies Commercial Data Providers DDP Prepared Search

5 Street Update Strategy Use data provider as a starting point Take ownership of YOUR data! Do not replace street or other data! Use outside sources as a means to maintain your data (Google Earth, MapQuest, etc…)

6 ESRI Data Formats Shapefiles Personal Geodatabase File Geodatabase Personal ArcSDE Workgroup ArcSDE Enterprise ArcSDE # Users Administrative Overhead (1 editor Unlimited viewers) (1 editor Unlimited viewers) (1 editor Unlimited viewers) (1 editor 3 viewers/connections) (Unlimited editors viewers/connections) (10 editors 10 viewers/connections) SchoolSite GDB is stored in pGDB format

7 ESRI Data Formats Shapefiles Personal Geodatabase File Geodatabase Personal ArcSDE Workgroup ArcSDE Enterprise ArcSDE # Users Administrative Overhead (Microsoft Access.MDB) (Proprietary ESRI format) (SQL Server Express) (Oracle, SQL Server, other RDBMS) (SQL Server Express) (Proprietary ESRI format) Free Extra License Extra License + Cost of chosen RDBMS

8 Why Choose One Format over Another? Number of expected users Amount of Data Functionality Required Cost (some storage methods require license) Districts IT Strategy In-house Expertise

9 Shapefiles Format from ArcView version 2 in early 1990s Ubiquitous Easy methods to transfer/share individual layers among agencies Each shapefile is multiple files on disk Rules-based editing tools (Topology) in ArcEditor or ArcINFO do not work with shapefiles (Big issue if YOU are maintaining large GIS datasets!) One editor Free format All other GIS mapping and functions are available

10 Personal Geodatabase (pGDB) Format from ArcGIS version 8 Uses Microsoft Access file to store map data (.MDB) All data layers stored in one disk file Database size limited to 2 GB Rules-based editing tools (Topology) in ArcEditor or ArcINFO work with pGDB (Big issue if YOU are maintaining large GIS datasets!) One editor Free format All other GIS mapping and functions are available

11 File Geodatabase (fGDB) Format from ArcGIS version 9.2 Proprietary format on disk (layers in folder structure on hard drive) Large data sizes supported (>1 TB) Added speed and stability vs. pGDB One editor Free format All other GIS mapping and functions are available Note: DDPs in house data format

12 Geodatabases for SQL Server Express New in 9.2 Uses SQL Server Express to store data (provided with ArcGIS) RDBMS advantages Login to access data Backup utilities Change history maintained All other GIS mapping and functions are available Personal: One editor/3 viewer connections (free) Workgroup: 10 editors/10 viewer connections Good for small departments with multiple people responsible for editing (extra fee)

13 Enterprise ArcSDE Utilizes Oracle, SQL Server, DB2 Can integrate map data with Districts IT strategy Unlimited editors and users Can maintain change history of database Requires extra license fees as well as cost of RDBMS Typically for large Districts, ie. Denver School District, Miami-Dade County, etc. Not for the faint-of-heart…requires database administrator

14 GIS Tools to Organize Data: ArcCatalog What is ArcCatalog? 1 of 2 applications for ArcGIS (the other being ArcMap) Used for: 1. browsing data 2. managing data 3. documenting geographic data

15 What can you do with ArcCatalog? Display your hard drive and network connections in a Windows Explorer-like application Create connections to various drives and folders Copy, paste, create and delete map data and other file types Convert map data to and from various ESRI data formats Search and preview your data before adding it to an ArcMap document Store thumbnails and metadata about your data to document your work and to share with others

16 The ArcCatalog Window The title bar displays the selected items location Click buttons on the active toolbars to explore the current view Each tab displays contents of selected items in a different way Move this bar to resize the catalog tree Status bar describes what a button or menu command does and also reports which items are selected Catalog tree lets you access and navigate your folders and data. Select an item in the tree to view its contents

17 Catalog Tree Icons identify data types Supports drag and drop Supports copy and paste Right-click Context menus Display connections Specialized connections, (ie. GIS servers, Internet)

18 Connecting/Disconnecting to Folders By default, ArcCatalog shows local hard drives and folders on your computer. You can connect to other drives (ie. network) by setting up a connection. Connect Disconnect

19 Folders and File Types Folder connections let you access data on local and network disks Folders represent folders on disk like Windows Explorer Folders are unavailable when the icon shows a red X

20 Previewing Features Allows user to view attributes in either geography view, or view the attributes associated with the data by switching to the attribute table.

21 Previewing Tables

22 ArcCatalog: Create New Items/Data Select an item, then File/New Select a location, then Right Click Right-Click

23 ArcCatalog: Copy and Delete Data Select an item, then File/New Select an item, then Right Click Right-Click

24 ArcCatalog: Convert Data Formats Select an item, then File/New Select feature, then Right Click Right-Click

25 ArcCatalog and ArcMap Work Together Loading Data You can drag and drop a layer from ArcCatalog to ArcMap. They both support one another.

26 Organizing My Data GISData Base Data SY0708 P:\Network_Drive SY0809 SY0910 Students MapDocs Layers SchoolSite Redistricting Plans Projections Streets Study Areas Schools Tract Geodatabase Windows Folder.mxd.lyr

27 Getting Help Whats this? Click on a tool/button and expanded help will appear 1 2

28 Additional Help Help Menu Resource Center in 9.3.1

29 SchoolSite Geodatabase Redistricting plans, projections, etc. are stored in a SchoolSite GDB (custom pGDB). Plans, projections, etc. in a SchoolSite GDB are manipulated and maintained through the SchoolSite toolbars in ArcMap (not ArcCatalog)

30 Copying Redistricting Plans/Projections Copy Redistricting Plans Copy Enrollment Projections

31 SchoolSite Geodatabase Entire SchoolSite GDBs can be deleted within ArcCatalog.

32 Exercises: Overview Setting up a folder structure Creating a Personal GDB (pGDB) Converting Shapefiles to pGDB feature classes Miscellaneous ArcCatalog functions

33 QUESTIONS?


Download ppt "KEYS TO SUCCESS DATA PREPARATION AND ORGANIZATION."

Similar presentations


Ads by Google