DATA MODELS

Jan 20, 2025

0 likes | 6 Views

GIS DATA MODELS

Share Presentation

Embed Code

Link

DORRISKARUGA

Download Presentation

DATA MODELS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

Data models

Data models Vector data model Raster data model (x,y) (x,y) (x,y) (x,y) (x,y) (x,y) (x,y) (x,y) (x,y) (x,y) point line polygon(area) The Vector Model of Real world The vector data model represent geographic features similar to the way maps do

1.6k views • 17 slides

Data Dissemination Models

Data Dissemination Models. Network-Level Multicasting. IP Multicast Architecture. Service Model. Hosts. Host-to-Router Protocol (IGMP). Routers. Multicast Routing Protocols (various). Logical Naming. Single name/address maps to logically related set of destinations

476 views • 26 slides

Data Models

A data model in software engineering is an abstract model that describes how data are represented and accessed. Data models are expressed in terms of entities, attributes, domains, and relationships. Typical applications of data models include database models and design of information systems.

782 views • 28 slides

Data Models

Data Models. Objectives. Why data models are important About the basic data-modeling building blocks What business rules are and how they influence database design How the major data models evolved How data models can be classified by level of abstraction. The Importance of Data Models.

1.26k views • 57 slides

Data Models

Data Models. Data Model : A set of concepts to describe the structure of a DB (data types, relationships ), operations for manipulation of the DB, and constraints on the DB. Data Model Operations : Operations for specifying DB retrievals and updates.

2.13k views • 36 slides

Data Models

Data Models. There are 3 parts to a GIS: GUI Tools Data Management System May be distributed on separate machines connected by a network We will look today at the different ways in which the data are stored within a GIS. Levels Of Abstraction. Can identify four levels of abstraction:

651 views • 32 slides

Data Models

Data Models. A data model is an abstraction of a complex real-world data environment. Data model is the relatively simple representation, usually graphical, of complex real-world data structures. The model’s main function is to help us understand the complexities of the real-world environment.

1.17k views • 88 slides

Data Models

Data Models . Amandeep Kaur Lecturer GPC Khunimajra Call at 9646229005 Email aman12484@gmail.com. Data Models. A Database models some portion of the real world. Data Model is link between user’s view of the world and bits stored in computer. Many models have been proposed.

770 views • 41 slides

Count Data Models

Count Data Models. * run poisson regression; poisson drvisits age65 age70 age75 age80 chronic excel good fair female black hispanic hs_drop hs_grad mcaid incomel ; * run neg binomial regression; nbreg drvisits age65 age70 age75 age80 chronic excel good fair female

333 views • 18 slides

Data Models

Data Models. Contents. Database Models Hierarchical Database Model Network Database Model Relational database model Relations Features of Relations OPERATIONS ON RELATIONS Insert Delete Update . Database Models.

601 views • 16 slides

Data Models

Data Models. Overview. Why data models are important Basic data-modeling building blocks What are business rules and how do they influence database design How the major data models evolved How data models can be classified by level of abstraction. Importance of Data Models. Data models

2.73k views • 40 slides

DATA MODELS

DATA MODELS. Topics to be Discussed…. Data Model Categories of Data Models Object Based Data Models Physical Data Models Record Based Logical Models Hierarchical Model Network Model Relational Model Comparison of Data Models Which Data Model to Use. Data Models

15.9k views • 38 slides

Data Models

Data Models. MIS 304 Winter 2006. Class Goals. Understand why data models are important Learn about the basic data-modeling building blocks Learn what business rules are and how they affect database design How the major data models evolved, and their advantages and disadvantages

1.3k views • 64 slides

Data Models

Data Models. John Shalf -- LBNL Presented to ACE-RG @ GGF6 October 16, 2002. Data Models. What is it? FEM, block structured data, AMR, Sensor Meshes Why is it relevant to the Grid Interoperability Components architectures (ie. CCA) Semantics vs. Syntax

318 views • 5 slides

Data Models

Data Models. How to structure data. What is a Data Model?. Having formed a model of the enterprise, we now need to represent the data. The data model tells us the structure of the database. Historically, three data models: Hierarchical data model Network data model Relational data model.

785 views • 42 slides

MODELS & DATA

MODELS & DATA. A Four-Box Model of a DSS / BI System Implicit vs Explicit Models Typologies of Models Types of Data The Model-Data Interdependency Is Quality Data Worth It? A Predictive Model for Evaluating Pricing Policies. USER INTERFACE. DECISION MODELS. A FOUR-BOX MODEL OF

677 views • 47 slides

Data models

Data models. Relational, object, and semistructured. Types of database applications. Queries No queries. Payroll. GIS. Word processing. CAD/CAM. Simple data Complex data. An example schema. COMPANY. head_office. address. PERSON. ceo. departments. ADDRESS. ISA. office.

460 views • 35 slides

Data Models

715 views • 57 slides

Data Models

Data Models. Chapter 2 Pp 29-53. 1. Phenomena/ entities that exist in the real world. Computer Representation. Machine Code 10011101 00110110 10110100. An abstraction, relevant phenomena and properties. 2. Data Model. Objects in a spatial database.

683 views • 55 slides

Data Models

Data Models. BY: Savleen kaur. Data Model. A database model defines the logical design of data. The model also describes the relationships between different parts of the data. Various types of data models are: Object oriented model Hierarchical data model Relational data model

933 views • 53 slides

More Related

DATA MODELS

DATA MODELS

Presentation Transcript

Data models

Data Dissemination Models

Data Models

Data Models

Data Models

Data Models

Data Models

Data Models

Count Data Models

Data Models

Data Models

DATA MODELS

Data Models

Data Models

Data Models

MODELS &amp; DATA

Data models

Data Models

Data Models

Data Models

MODELS & DATA