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 UseFunctions of the software differ with formatsFolder Structure to Organize My DataHow do I organize and share my data with others?
3 What Data Do I Need? SchoolSite Redistricting SchoolSite Projections StudentsStudy AreasSchoolsStreets (only for geocoding purposes)SchoolSite ProjectionsAll of the above data layers, plus…New development (tract)Non-GIS factors (ie. birth data, etc.)
4 Where Do I Get Data? Where Do I Get Data? County/Cities SearchCounty/CitiesRegional Planning AgenciesCommercial Data ProvidersDDP Prepared
5 Street Update Strategy Use data provider as a starting pointTake 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 Enterprise ArcSDE Workgroup ArcSDE Personal ArcSDE # Users(Unlimited editorsviewers/connections)Enterprise ArcSDE(10 editors10 viewers/connections)Workgroup ArcSDE(1 editor3 viewers/connections)Personal ArcSDE(1 editorUnlimited viewers)File GeodatabasePersonal Geodatabase(1 editorUnlimited viewers)SchoolSite GDB is stored in pGDB formatShapefiles(1 editorUnlimited viewers)Administrative Overhead
7 ESRI Data Formats Enterprise ArcSDE Workgroup ArcSDE Personal ArcSDE Extra License +Cost of chosen RDBMS(Oracle, SQL Server, other RDBMS)# UsersEnterprise ArcSDEExtra LicenseWorkgroup ArcSDE(SQL Server Express)FreePersonal ArcSDE(SQL Server Express)FreeFile Geodatabase(Proprietary ESRI format)FreePersonal Geodatabase(Microsoft Access .MDB)FreeShapefiles(Proprietary ESRI format)Administrative Overhead
8 Why Choose One Format over Another? Number of expected usersAmount of DataFunctionality RequiredCost (some storage methods require license)District’s IT StrategyIn-house Expertise
9 Shapefiles Format from ArcView version 2 in early 1990s Ubiquitous Easy methods to transfer/share individual layers among agenciesEach “shapefile” is multiple files on diskRules-based editing tools (“Topology”) in ArcEditor or ArcINFO do not work with shapefiles (Big issue if YOU are maintaining large GIS datasets!)One editorFree formatAll other GIS mapping and functions are available
10 Personal Geodatabase (pGDB) Format from ArcGIS version 8Uses Microsoft Access file to store map data (.MDB)All data layers stored in one disk file Database size limited to 2 GBRules-based editing tools (“Topology”) in ArcEditor or ArcINFO work with pGDB (Big issue if YOU are maintaining large GIS datasets!)One editorFree formatAll other GIS mapping and functions are available
11 File Geodatabase (fGDB) Format from ArcGIS version 9.2Proprietary format on disk (layers in folder structure on hard drive)Large data sizes supported (>1 TB)Added speed and stability vs. pGDBOne editorFree formatAll other GIS mapping and functions are availableNote:DDP’s in house data format
12 Geodatabases for SQL Server Express New in 9.2Uses SQL Server Express to store data (provided with ArcGIS)RDBMS advantagesLogin to access dataBackup utilitiesChange history maintainedAll other GIS mapping and functions are availablePersonal: 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 District’s IT strategyUnlimited editors and usersCan maintain change history of databaseRequires extra license fees as well as cost of RDBMSTypically 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 data2. managing data3. documenting geographic data
15 What can you do with ArcCatalog? Display your hard drive and network connections in a Windows Explorer-like applicationCreate connections to various drives and foldersCopy, paste, create and delete map data and other file typesConvert map data to and from various ESRI data formatsSearch and preview your data before adding it to an ArcMap documentStore thumbnails and metadata about your data to document your work and to share with others
16 The ArcCatalog Window Click buttons on the active toolbars The title bar displaysthe selected itemslocationClick buttons on the active toolbarsto explore the current viewCatalog tree lets youaccess and navigateyour folders and data.Select an itemin the tree to view itscontentsEach tab displayscontents of selecteditems in a differentwayStatus bar describes whata button or menu commanddoes and also reports whichitems are selectedMove this bar to resizethe catalog tree
17 Catalog Tree Icons identify data types Supports drag and drop Supports copy and pasteRight-click Context menusDisplay connectionsSpecialized 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.Disconnect
19 Folders represent folders Folders and File TypesFolder connections let youaccess data on local andnetwork disksFolders represent folderson disk like WindowsExplorerFolders are unavailablewhen the icon shows ared X
20 Previewing Features Allows user to view attributes in either geography view, orview the attributesassociated with thedata by switching tothe attribute table.
22 ArcCatalog: Create New Items/Data Select a location, then Right ClickSelect an item, then File/NewRight-Click
23 ArcCatalog: Copy and Delete Data Select an item, then Right ClickSelect an item, then File/NewRight-Click
24 ArcCatalog: Convert Data Formats Select feature, then Right ClickSelect an item, then File/NewRight-Click
25 ArcCatalog and ArcMap Work Together Loading Data You can drag and dropa layer from ArcCatalogto ArcMap. They bothsupport one another.
26 Organizing My Data P:\Network_Drive GISData SY0708 SY0809 SY0910 BaseDataSY0708P:\Network_DriveSY0809SY0910StudentsMapDocsLayersSchoolSiteRedistrictingPlansProjectionsStreetsStudy AreasSchoolsTractGeodatabaseWindows Folder.mxd.lyr
27 Getting Help What’s this? Click on a tool/button and expanded help will appear21
28 Additional HelpHelp MenuResource 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)
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