Lecture 4 Flashcards

1
Q

What is the first task of spatial data infrastructure ?

A

it is to inventory who has what data of what type and quality

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2
Q

Metadata Inventory

A

provides documentation of existing internal geo spatial resources within an organization

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3
Q

MetaData Catalog

A

Permits structured search and comparison of held geo spatial resources by others

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4
Q

MetaData Documentations

A

Provides end users with adequate information to take the resource and apply it in an appropriate context

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5
Q

File Geodatabases

A

stores multiple files in a folder with an .gdb extension. single flied with up to 256 TB

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6
Q

Mobile Geodatabase

A

stores in an SQLite database that is contained in 1 file has .gdb extension

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7
Q

Enterprise Geodatabases

A

Multiuser geodatabase stored in a relational databases. it has unlimited users and size but depends on the DBMS vendor

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8
Q

Schema

A

defined in the Catalog tab which allows to convert data from other formats such as Shapefile, Coverage, CAD and Raster

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9
Q

Versioning

A

provides multiple representations of the data without copying data, allows concurrent editing, and allows users to have versions for extended periods of time.

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10
Q

what 2 types of versioning

A

Branch and Traditional

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11
Q

Feature Dataset

A

a container object for other datasets, contain geometric networks

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12
Q

Attribute rules

A

are a set of, well, rules that you can apply to a database. These rules can perform different actions and have different triggers.

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13
Q

Attribute rule types

A

Calculation, Constraint and Validation

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14
Q

Constraint rule

A

WILL NOT let an incorrect value into the database

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15
Q

Validation rule

A

WILL let an incorrect value into the database but will be flagged during evaluation

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16
Q

Domains

A

Describe the legal values of a field type used to ensure attribute integrity and is defined to the geodatabase level

17
Q

what are the types of domains are there?

A

Range and Coded Values

18
Q

Range

A

have valid values between a min / max range

19
Q

Coded Value

A

Valid values chosen from a set list

20
Q

Subtypes

A

Categorize objects or features into groups which share the same attributes, they are defined at a class level

21
Q

Relationship Classes

A

Association between object is in one class and another

22
Q

Annotation feature classes

A

placing text and graphics on the map using feature linked or non- feature linked

23
Q

Dimension Features

A

Type of annotation that displays specific distances on a map. These Graphic features are stored in a dimension feature class

24
Q

Relationship Classes

A

Control the general and network relationships in which an object can participate.

25
Dimensions and Annotation
nstantiate classes with predefined behavior.
26
Subtypes
Partitions the objects into like groups
27
Domains
Control the default value and acceptable values for any attribute