Understanding Web 2.0 Technologies and Database Systems

Social Web and Web 2.0

Web 2.0 was born to complement existing online services. It is based on them and focuses on user contributions to the development network, providing, revising, or modifying content.

Key Web 2.0 Components

• Wiki: Websites edited by different people in a collaborative way.
• Blog (or Weblog): Websites that function like a personal diary where contrasting views are expressed, and content or discussions are moderated by the blogger.
• Photo Albums and Videos: Sites where users contribute their photos and videos.
• RSS (Really Simple Syndication): A web subscription service for news search and consultation. It allows access to news from digital newspapers or radio stations.
• Podcast: Retransmission of news or events in audio format that can be downloaded from websites. Videocast is the equivalent for videos.
• LCMS (Learning and Content Management System): Innovative teaching and learning systems that publish and distribute educational materials.
• Geolocation: Geographic location on digital maps published on websites.
• Online Applications: Programs that can be used and run directly from a website without requiring installation.
• P2P: Allows direct exchange of information at any time between interconnected computers.
• Wikipedia: A free, multilingual encyclopedia based on wiki technology, written by volunteers, with articles modifiable by anyone with Internet access.

Databases and Management Tools

A database is a set of tools used to manage information related to a particular topic. It is represented by a window where tools are grouped to store and manipulate information.

Management Tools

• Tables: Data is stored in an organized manner.
• Consultation: Provides answers to questions that may arise.
• Forms: Objects used to interact with data in a table.
• Reports: Tools that allow you to print data stored in tables.

Types of Databases

• Relational Database: Allows for interconnections between data to work with them together.
• Document Databases: Manage documents and can work with text blocks.