Network Applications
Computer Network: a system that connects computers and other devices (e.g. printers, smart phones) via communications media so that data can be transmitted among them
Bandwidth: the transmission capacity of a network. It is stated in bits per
Second
Network Applications:
1. Discovery
2. Communications
3. Collaboration
4. Web services
Discovery
Discovery: the Internet allows users to browse and search data sources, in all topic areas, on the Web.
Search engines: computer programs that search for specific information by keywords and report the results
Other Interesting Search Engines
FilesTube http://www.filestube.com/
Search and download files from file sharing and upload sites
Burrp http://www.Burrp.com/
Urban lifestyle guide will help you find a Thai restaurant in New York or a night spot in Mumbai
A search tool that lets you search large media sites as well as social search engines
Metasearch Engines:
Metasearch engine searches several engines at once and integrate the findings of the various search engines to answer queries posted by users
Surf-Wax
Metacrawler
Mamma
KartOO
Dogpile
Publication of Material in Foreign Languages
Translation products include:
n Altavista
n Google
n Trados
Should companies care about providing their
web sites in multiple languages?
To reach 80% of the world’s Internet users, a web site need to
support a minimum of 10 languages
Portals
Portal: a Web-based, personalized gateway to information and knowledge that provides relevant information from different IS systems and the Internet using advanced search and indexing techniques.
Four types of portals:
1. Commercial (public) portals: offer content for diverse communities and are the most popular portals on the Internet
2. Affinity portals: offer a single point of entry to an entire community of interest, such as a hoppy group or political party
3. Corporate/ Enterprise portals: offer a personalized single point of access to information located within the organization
4. Industrywide portals: offer a single point of entry to information for an entire industry
Offers information about:
- Professional drivers
- Owner/operators
- Trucking companies
- Trucking jobs
- Drivers (virtual) round table
Communication
Electronic mail (e-mail): transmission of electronic
messages over the Internet
ü the largest-volume application running on the Internet
ü 90% of companies conduct business transactions via e-mail
Web-based call centers (customer call center):
are services that provide effective personalize customer contact
as an important part of Web based customer support
Electronic chat room: a virtual meeting
place where groups of regulars come
to “gab”/ E-Chitchat
Voice Communication
Internet Telephony/ Voice-over Internet Protocol (VoIP)
digitizes your analog voice signals, sections them into packets, and sends them over the Internet.
Unified Communications
simplifies and integrates all forms of communications , voice mail, fax, chat, e-mail, instant messaging, short message service, presence (location) services, and videoconferencing – on a common hardware and software platform.
Collaboration
Collaboration refers to efforts of two or more entities (individuals, teams, groups, or organizations) who work together to accomplish certain tasks.
Work group refers specifically to two or more individuals who act together to perform some task.
Virtual group (team) is when group members are in different locations.
Crowdsourcing
§ Synchronous collaboration
§ Asynchronous collaboration
Virtual collaboration: the use of digital technologies that enable organizations or individuals to collaboratively plan, design, develop, manage and research products, services and innovative applications.
Workflow technologies: facilitate the movement of information as it flows through the sequence of steps that make up an organization’s work procedures. Includes workflow management and workflow systems.
Groupware: software products that support groups of people who share a common task or goal and who collaborate to accomplish it.
Teleconferencing: the use of electronic communication that allows two or more people at different locations to hold a simultaneous conference.
Videoconference: is when participants in one location can see participants at other locations and share data, voice, pictures, graphics and animation by electronic means
Web conferencing: videoconferencing conducted over the Internet.
Real-time collaboration tools: support synchronous communication of graphical and text-based information i.e. computer-based whiteboards.
Telepresence Systems
Telepresence systems:
ü The latest version of videoconferencing
enable participants to seamlessly share data, voice, images, graphics, video, and animation electronically
Web 2.0
Web 2.0 is a loose collection of information technologies and applications, and the Web sites that use them.
Web 2.0 Information Technologies and Applications
AJAX: (Asynchronous JavaScript And XML) a web development technique that allows portions of web pages to reload with fresh data instead of requiring the entire web page to reload [speed up response time]
Tagging: a tag is a keyword or term that describes a piece of information (e.g., blog, picture, article, video clip)
Blog (Weblog) a personal web site, open to the public, in which the site creator expresses his or her feelings or opinions
Wiki: a web site on which anyone can post material and make changes to other material.
The reliability of the content ???
Really Simple Syndication (RSS): allows users to receive, or customize the information they receive when they want it without having to surf thousands of web sites.
Podcasts and Videocasts: a digital audio file that is distributed over the web using RSS for playback on portable media players or personal computers. A videocast is the same as a podcast, only with digital media and audio content.
Categories of Web 2.0 Sites
Social Networking Sites: Web sites that allow users to upload their content to the Web in the form of text, voice, images, and video.
Aggregators: Provide a collection of content from the Web (e.g., Technorati, Digg, Simply Hired)
Mashups “Mix & Match”: A web site that takes content from a number of other web sites and mixes them together to create a new kind of content/ service (e.g., SkiBonk, Healthmap, ChicagoCrime)
- Supported by Google Maps
Web Services and Service-Oriented Architecture
Web services: applications delivered over the Internet that users can select and combine through almost any device, from personal computers to mobile phones.
Service-oriented architecture: an IT architecture that makes it possible to construct business applications using web services.
E-Learning and Distance Learning
E-Learning: learning supported by the Web
Easy Learning by OmanTel
Distance learning: any learning situation in which teachers and students do not meet f2f
Virtual Universities
Benefits & Drawbacks of E-Learning
Benefits:
þ Students have the flexibility of learning from any place at any time at their own pace.
þ Online materials deliver high-quality, current content.
þ Training costs can be reduced.
Drawbacks:
× Instructors may need training to be able to teach electronically
× Students must be computer literate
× There are issues with assessing students’ work
Telecommuting
Telecommuting/ Teleworking allows workers to work anytime and anyplace
Benefits:
n For Employees
n Reduced stress, improved family life
n Employment opportunities for single parents and persons with disabilities
n For Employers
n Increased productivity
n Ability to retain skilled employees
Drawbacks:
For Employees
Feelings of isolation
No workplace visibility
Potential for slower promotions
For Employers
Difficulties in supervising work
Potential information security problems
Additional training costs
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