GIS Data Models and Spatial Data Structures Lecture 2 Objectives

Discrete features with identifiable boundaries and attributes

To represent real-world features in various forms like points, lines, arcs, and polygons

Object-based model and field-based model

<p>They have well-defined or identifiable boundaries</p> Signup and view all the answers

<p>To provide a conceptual representation of data structures</p> Signup and view all the answers

<p>As points, lines, arcs, and polygons</p> Signup and view all the answers

<p>Raster data models represent data using a grid of cells, while vector data models represent data using points, lines, and polygons.</p> Signup and view all the answers

<p>Topology defines the spatial relationships between GIS features.</p> Signup and view all the answers

<p>Spatial objects in the object-based model have identifiable boundaries and attributes.</p> Signup and view all the answers

<p>To ensure a more accurate representation of the real-world features.</p> Signup and view all the answers

<p>To store and manage spatial and attribute data efficiently.</p> Signup and view all the answers

<p>The field-based model represents continuous surfaces, while the object-based model represents discrete features.</p> Signup and view all the answers