Module 2 - Introduction to data models / data types / the geodatabase

LEARNING OBJECTIVES

1. Describe the Coverage data format
2. Describe the Shapefile data format
3. Describe the Geodatabase data format
4. Describe the CAD data format
5. Compare and conrast each of the above data formats
6. List several other data formats used for storing geographic information

TERMS TO KNOW

• Describe the raster data model
• Describe the vector data model
• Define data format
• Coverage
• Shapefile
• Geodatabase
• CAD
• feature class
• feature dataset
• stored / shared topology
• coincident features

READING ASSIGNMENT

Modeling Our World - Chapter 4 and the ESRI support pages below

PowerPoint Supplement

From the ESRI support pages:

• What is a Coverage?
• Learn more about shapefiles
• Working with CAD data in ArcGIS
• Data formats supported in ArcGIS
  
• GIS Layer Field Names and Standard Fields

ACTIVE LEARNING EXERCISE

Working with different data formats exercise

The data for this exercise can be found on the server: H:\GIS\GIS_classes\GIS215\SpatialDataFormats

Copy it to your flash drive to complete this exercise.

STUDY QUESTIONS

1. List 4 disadvantages of the CAD data format
2. What is a geo-relational data model?
3. What are 3 disadvantages to the ArcInfo Coverage?
4. Describe the shapefile
5. How many files must be present for a shapefile to be considered whole?
6. What are 3 disadvantages to the shapefile?
7. Describe the geodatabase in 1 sentence.
8. List the geodatabase types.
9. What type of information is modeled well using raster data?
10. What type of information is modeled well using vector data?

HOMEWORK ... YES HOMEWORK

Working with CAD data in ArcGIS 9.2

Module 1: Class Introduction / Review ArcGIS / Data Models / Project 1

COURSE INTRODUCTION

LEARNING OBJECTIVES

1. Review of ArcGIS and GIS 111 (follow the link)
2. Define data model
3. Define data format
4. Describe the differences and similarities of the data models and data formats
5. List 2 data formats

TERMS TO KNOW

• Data model
• Coverage
• Shapefile
• Geodatabase
• CAD
• Raster
• Vector

READING ASSIGNMENT

Modeling Our World - Preface and Chapter 1 (for next week)

PowerPoint Supplemements (refresh page if download does not begin)

• Lecture 1 - Data Models and Data Formats (see video of lecture/PPT here)

ACTIVE LEARNING EXERCISE

Project 1: Building a Buncombe County Geodatabase

https://docs.google.com/document/pub?id=1Du6NsWvB_BfCdI-kSRHapy9hj9Sa_OBjz__svq4anu8

HOMEWORK

Finish Project 1 for next week.

Test 3 Study Guide - GPS

Access study guide here

Module 6 - Database Design

Test 1 Review

Test 1 next week -

The test format will be multiple choice, true/false, and discussion. It will cover Chapters 1and 3 in the book, working with CAD data and anything else we have covered so far this semester.

Get the study guide here

Next generation GPS to be more accurate

Looks like the new IIF satellites will have accuracies down to 3 feet in real-time. See the Wired article on this from yesterday.

Test 2 Review

Test 2 Review

1. Describe in detail the 3 types of geodatabases
2. Describe the geodatabase and it's major components
   
3. What is SDE?
   
4. Define domains. Describe both types and what fields they may be applied to.
5. Describe subtypes. Why use them?
6. What is a relationship class and what differentiates them from build relationships between tables in ArcMap.
7. Compare and contrast raster datasets and raster catalogs.
   
8. What is a feature class?
9. What is an object class?
10. What is a feature dataset? Describe 2 reasons we may use them.
11. What is topology, in general?
    
12. Why is topology important?
13. Compare and contrast map topology and geodatabase topology. IN DEPTH
14. Describe coincidence and clucster tolerance.
    
15. Explain how topology helps with analysis and data integrit.
16. Define ranks in a topology
17. Describe several topology rules
18. Describe topology validation
19. List several types of topology errors.
20. Describe the steps to designing a geodatabase
21. Describe why geodatabase design is important
22. How can existing data models help your design?