Laboratory Exercise 3

Getting Information About Features


Analyzing Feature Relationships


This laboratory consists of exercises from Chapters 9, 10 and 11 of the lab text, Getting to Know ArcGIS Desktop, with the exercise data obtained from the accompanying CD-ROM.

ArcView is a powerful desktop geographic information system (GIS) developed by Environmental Systems Research Institute (ESRI). With ArcView, you can load any data that's linked to geographic locations and display it graphically as maps, charts and tables. You can also edit the data , change the way it's displayed, append additional data, create some of your own, perform queries to answer specific questions, or meet certain criteria, and analyze information statistically as well as spatially. Results can be shown as quality graphic presentations to print out or display your screen.

Lab 3 continues to explore the techniques of getting information about features, and how to analyze the relationships between features.

In Chapter 9 (Exercises 9a, 9b), you will learn how to join and relate different tables.

In Chapter 10 (Exercises 10a, 10b), you will learn how to select features by location

Chapter 11 (Exercises 11a, 11b, 11c, 11d),  introduces you to the ways of preparing data for analysis.

It is estimated that it will take from 3 to 6 hours to complete this lab. Please plan accordingly, so that all the answers to this lab are submitted at the same time.

For more information on these concepts, please refer to the ESRI website.


Complete the answers to the questions posed below. The questions are based on the work you did in completing the lab exercises above, and the reading for the lab. Please form your answers using MSWORD and attach them to an e-mail addressed to Do not e-mail your answers to the instructor's e-mail!

Questions for Lab 3

Chapter 9 - Joining and Relating Tables

Q1. What is the difference between joining tables and relating tables?

Q2. How can you make a table join permanent?

Q3. Describe the processes of relating and joining tables in you own words.

Chapter 10 - Selecting Features by Location (This is an important chapter relative to the term project)

Q1. What are the four spatial relationships that can be used to select features by their spatial relationship to other features?

Q2. What parameters are needed to select features by location?

Q3. What is the difference between an attribute query and a location query?

Q4. What is a "definition query"?

Q5. Describe the process of creating a definition query in your own words.

Q6. What is a "spatial join"?

Chapter 11 - Preparing Data for Analysis (This is an important chapter relative to the term project)

Q1. What is the purpose of dissolving data?

Q2. How many types of graph formats are available through the Graph Wizard?

Q3. Define "clipping". Why is clipping important?

Q4. What is the purpose of exporting data?