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Hypermedia

Hypermedia is a computer-based information retrieval system that enables a user to gain or provide access to texts, audio and video recordings, photographs and computer graphics related to a particular subject. Hypermedia is a term created by Ted Nelson. Hypermedia is used as a logical extension of the term hypertext in which graphics, audio, video, plain text and hyperlinks intertwine to create a generally non-linear medium of information. This contrasts with the broader term multimedia, which may be used to describe non-interactive linear presentations as well as hypermedia. It is also related to the field of Electronic literature. The term was first used in a 1965 article by Ted Nelson.
The World Wide Web is a classic example of hypermedia, whereas a non-interactive cinema presentation is an example of standard multimedia due to the absence of hyperlinks.

Hypermedia development tools

Hypermedia may be developed a number of ways. Any programming tool can be used to write programs that link data from internal variables and nodes for external data files. Multimedia development software such as Adobe Flash, Adobe Director, Macromedia Authorware, and MatchWare Mediator may be used to create stand-alone hypermedia applications, with emphasis on entertainment content. Some database software such as Visual FoxPro and FileMaker Developer may be used to develop stand-alone hypermedia applications, with emphasis on educational and business content management.

Hypermedia applications may be developed on embedded devices for the mobile and the Digital signage industries using the Scalable Vector Graphics (SVG) specification from W3C (World Wide Web Consortium). Software applications such as Ikivo Animator and Inkscape simplify the development of Hypermedia content based on SVG. Embedded devices such asiPhone natively support SVG specifications and may be used to create mobile and distributed Hypermedia applications.

Hyperlinks may also be added to data files using most business software via the limited scripting and hyperlinking features built in. Documentation software such as the Microsoft Office Suite and LibreOffice allow for hypertext links to other content within the same file, other external files, and URL links to files on external file servers. For more emphasis on graphics andpage layout, hyperlinks may be added using most modern desktop publishing tools. This includes presentation programs, such as Microsoft Powerpoint and LibreOffice Impress, add-ons to print layout programs such as Quark Immedia, and tools to include hyperlinks in PDF documents such as Adobe InDesign for creating and Adobe Acrobat for editing. Hyper Publish is a tool specifically designed and optimized for hypermedia and hypertext management. Any HTML Editor may be used to build HTML files, accessible by any web browser.CD/DVD authoring tools such as DVD Studio Pro may be used to hyperlink the content of DVDs for DVD players or web links when the disc is played on a personal computer connected to the internet.

Example of Url

URL (Uniform Resource Locator)

Stands for "Uniform Resource Locator." A URL is the address of a specific Web site or file on the Internet. It cannot have spaces or certain other characters and uses forward slashes to denote different directories. Some examples of URLs are http://www.cnet.com/, http://web.mit.edu/, and ftp://info.apple.com/. As you can see, not all URLs begin with "http". The first part of a URL indicates what kind of resource it is addressing. Here is a list of the different resource prefixes:

• http - a hypertext directory or document (such as a Web page)
• ftp - a directory of files or an actual file available to download
• gopher - a gopher document or menu
• telnet - a Unix-based computer system that you can log into
• news - a newsgroup
• WAIS - a database or document on a Wide Area Information Search database
• file - a file located on your hard drive or some other local drive

Ecommerce Definition

Ecommerce Definition: ecommerce, e-commerce, or electronic commerce is the conduct of a financial transactions by electronic means. With the huge success of commerce on the Internet, ecommerce usually refers to shopping at online stores on the World Wide Web, also known as ecommerce Web sites. Ecommerce can be business to business (B to B) or business to consumer (B to C).

What is a Workflow Management System?

Workflow Management System (WMS) is a piece of software that provides an infrastructure to setup, execute, and monitor scientific workflows. In other words, the WMS provide an environment where in silico experiments can be defined and executed.


An important function of an WMS during the workflow execution, or enactment, is the coordination of operation of individual components that constitute the workflow – the process also often referred to asorchestration.


As research becomes more data-intensive and more reliant on the use of computers, larger volumes of experimentation data are recorded quicker and with greater precision. This trend has spurred significant increase in complexity of scientific simulation software. Many tools only perform a small well-defined task, thus necessitating that several of them are joined in a pipeline to model a useful experiment.


Additional difficulties arise from the need to deal with the 
incompatible data formats that various services produce or consume. 
It is evident that considerable amount of computer science knowledge is required to overcome the 
outlined problems; however, domain scientists across disciplines do not have sufficient relevant 
expertise.


Scientific workflows and WMSs have emerged to solve this problem and provide an easy-to-use 
way of specifying the tasks that have to be performed during a specific in silico experiment. The 
need to combine several tools into a single research analysis still holds, but technical details of 
workflow execution are now delegated to Workflow Management Systems.

E-Business and E-Commerce Web Portals

A standard corporate e-business Web portal used for much of a company's online business presence can encompass internal business systems (CRM, ERP, HR), enterprise communication and collaboration (e-mail, voice mail, VoIP, content management, business process management), and e-commerce for transmitting funds, goods, services and/or data between businesses (B2B) or between the business and its retail/e-tail customers (B2C).

Web 2.0 technologies have amped up these basics, becoming a driving force within today's e-business industry. Included in the new e-business portal model are Web-based communities and hosted services such as social networking capabilities, wikis, blogs and folksonomies aimed at facilitating creativity, collaboration and sharing among users. Rich Internet application (RIA) techniques based on Ajax, Adobe (Nasdaq: ADBE) Flash, Flex and Java improve the user experience in browser-based applications. RSS (Really Simple Syndication) feeds from news sites, blogs, wikis and enterprise applications send information where it's wanted -- the Web, mobile devices, e-mail clients and desktops.

Web 2.0 has greatly impacted the e-business role of e-commerce -- sales of goods and services where an order is placed by the buyer or price and terms of sale are negotiated over the Internet, an extranet, electronic data interchange (EDI) network, electronic mail or other online system. Payment may or may not be made online. Considered in this way, total e-commerce sales for 2007 were estimated at US$136.4 billion, an increase of 19 percent from 2006, according to the most recent estimates from the Census Bureau of the U.S. Department of Commerce.

What They Are

Web portals are Web sites that function by aggregating data from a large number of providers. E-commerce Web 2.0 portals also do this while providing richer content and more rewarding experiences.

"The portal (now) becomes a composite front end that integrates disaggregated services into a coherent, fluid user experience," wrote Simeon Simeonov in E-Commerce 2.0 -- The Velvet Revolution.

Previously, in a portal, the various pieces of content were often independent of one another, according to Simeonov. In the e-commerce 2.0 portal, everything is highly integrated from a data and user experience standpoint.

"The portal front end will initially run in parallel to the existing e-commerce 1.0 site because e-tailers will experiment and make the switch to e-commerce 2.0 gradually," said Simeonov. "

Variety of Portals

The world of consumer e-commerce provides a range of e-commerce portals:

The big-box general merchandise retailers like Wal-Mart (NYSE: WMT), HomeDepot, Kroger,Costco and Target, with their extensive logistics and supply chains, all have brick-n-click, dot-com online presences. Vertical affinity service providers like iVillage and WebMD offer a shopping component on their Web sites. The big Web-only shopping portals include eBay(Nasdaq: EBAY), Amazon.com (Nasdaq: AMZN), BizRate.com, MySimon.com, Yahoo Shopping,NexTag.com, Overstock.com, Shopping.com, Pricerunner.com, PricingCentral.com, MSN Shopping, Shop.com and Shopzilla.

All of these portals are beginning to adopt Web 2.0 functionality, but it's eBay and Amazon.com -- the 1990s e-commerce portal pioneers -- that have perhaps most fully engaged with Web 2.0. For example, APIs from eBay facilitate program-to-program auction management. Amazon provides a set of retail APIs that allow developers to create computer programs that make use of Amazon's sophisticated online retail infrastructure. Third party software developers have used this to create specialized storefronts.

Since 1999, eBay has offered the eBay API to enable developers to communicate directly with the eBay database in XML (extensible markup language) format, essentially turning its Web site into a platform. eBay Community has a feedback forum, chat rooms, discussion boards, news and more. eBay Wiki allows members to offer their own expertise on any eBay topic they care about. eBay Blogs lets members create their own blogs to promote their businesses, discuss favorite topics, products, eBay stores and more.

Amazon launched Amazon Web Services (AWS) in 2002. The service provides software developers, Web site owners and merchants with access to many behind-the-scenes features on Amazon's Web site. AWS teamed up with Facebook in early 2008 to help developers build instantly scalable applications. Customers in Amazon's online community can personalize Web pages and create content, including product reviews, online recommendation lists, wish lists, image uploads, buying guides and customer discussions. Amazon describes Amapedia, its lightly promoted Wikipedia clone, as "a community for sharing information about popular products." The Amazon Daily blog (formerly known as "Plogs") contains posts from throughout the Amazon site.

Social Commerce Portals

Social commerce involves customer-driven merchandising across a number of online properties to promote sales. The goal is to connect customers to one another in ways that drive measurable results to a company's business. Social commerce sites like Kaboodle, ThisNext,Wishpot and StyleHive combine two of the Web's most prominent activities: engaging in commerce and chatting with other like-minded people. The sites don't directly sell things, but they encourage users to share links to good bargains, obscure finds, products that work and ones that don't.

Social commerce brings in the rest of the Web 2.0 compendium such as user-generated content (some of it pulled from blogs and wikis, the rest captured on e-commerce sites), trust/reputation building and information discovery and management through folksonomies and social networks.

Kaboodle.com is a social network based on shopping and is designed to put its community members in touch with other shoppers who have similar interests in products. As members grow to know the community, their product reviews become more relevant based on recognition of some of the reviewers. Kaboodle is a distributed application, according to Kaboodle CEO Manish Chandra, and aggregation and distribution are where the global economy is heading.

"When you have too broad a collection of products, as with eBay, the discovery process is not well facilitated, and social interaction is missing," Chandra told the E-Commerce Times. "This restricts users in ways that create boundaries in the shopping experience. We're about empowering them to create experiences for themselves without boundaries."

ThisNext.com is an online media and social-shopping portal where people "shopcast" -- find, recommend and share their favorite products for others to discover and purchase online based on word-of-mouth recommendations from trusted sources called "influencers" or "mavens." A BlogIt tool enables ThisNext members to shopcast by posting lists, tags, recommendations or wish lists to their blogs, MySpace profiles or anywhere that supports HTML (hypertext markup language).

ThisNext is not so much a portal as it is "a very large node on a much broader network, a product recommendation layer on the entire social Web," ThisNext CEO Gordon Gould told the E-Commerce Times.

"We distribute different pieces of functionality that can be plugged in elsewhere on the Web and so have a much greater opportunity than just being a portal. As essentially a service layer, there is no Web destination site per se. Web 2.0 was about sharing. Web 3.0 is an information filtration service."

Wishpot.com is a free social shopping service aimed at making it easy to save and share interesting things found in stores and online. Wishpot for Facebook lets people share their favorite products, give gift suggestions and discover what their friends like and recommend -- all within Facebook.

"Social shopping sites are definitely already more semantic than general Web 2.0 sites," Wishpot CEO Max Ciccotosto told the E-Commerce Times. "They do a lot of interesting things with the concept of 'product;' they are able to scrape for this info, parse it, etc. They are filtered gateways."

Stylehive.com is a social bookmarking community focused entirely on products and shopping using a wishlist of a member's desired items. The Stylehive "badge" works with the Stylehive site and allows members to display pictures of their favorite products on a blog or Web site.

Stylehive CEO Michael Carrier also doesn't see social shopping Web sites as portals. "Social shopping is Web 3.0, which is to say it is a blend of Web 1.0 (content) and Web 2.0 (social)," he told the E-Commerce Times. "Web 3.0 is about sites like the Stylehive, where the content of the Web -- in this case shopping content -- is filtered through your trusted social group. This type of site gives the user the ability to control what they see by controlling the group of trusted recommenders."

Despite this added energy for online shopping, JupiterResearch has found that the growth of social networks and online communities has had little effect on influencing online retail sales. In a July 2007 report, the firm said that social and community sites are only driving about 12 percent of online shoppers to buy more than planned.

Business to Business

B2B Web sites can generally be sorted into company sites, product supply and procurement exchanges, brokering sites that act as intermediaries between someone wanting a product or service and potential providers. (e.g., equipment leasing, information sites, sometimes known as "infomediaries"), and specialized or vertical industry portals. Portals provide a sort of "sub-Web" of information, product listings, discussion groups and other features. These vertical portal sites have a broader purpose than the procurement sites (although they may also support buying and selling).

In creating new venues for the social scene, social networking sites like MySpace, Facebook,Friendster and the like have helped open the way for business users to adopt similar techniques to network and generate new business leads. The efficiency of online communities at sharing and prioritizing information are transforming enterprise business processes. Business networking services such as LinkedIn and Mzinga bring Web 2.0 social networking techniques to business users.

Two Web 2.0 B2B e-commerce portals are the Chinese operations Globaby.com andAlibaba.com.

Globaby.com calls itself a "B2B 2.0 portal" and professional marketplace specially designed for purpose-driven shopping and open to any suppliers of cost-effective products. Personalized Globaby locations called "MyHouse" let buyers register their suppliers and manage orders on the site. Buyers can leave messages for suppliers for further communication and invite suppliers to bid.

Alibaba.com asserts that it is the "#1 ranked international B2B trade portal." Specializing in English-language B2B trades, Alibaba.com is designed specifically for international buyers trying to get into contact with Chinese sellers. The MyAlibaba Community function allows members to add and update products, check messages, post trade leads and more.

Christopher S. Rollyson is founder and chief editor of the Global Human Capital Journal, which explores emerging phenomena like Web 2.0, social networking, innovation and globalization. He sees Web 2.0 following this trend.

"Web 2.0 and social networks have been largely seen as idle curiosities by all but the most B2C-centric executives, but that began to change in 2007," wrote Rollyson in his "Year in Review 2007: A Slow Boil Overture to Pervasive Social Transformation." Social networks, he asserted, "will cross the 'enterprise adoption' chasm in 2008. Most consumer-facing companies and brands will have to develop robust social network offerings to remain relevant, and B2B executives should create and execute strategies in 2008. The accelerating adoption of LinkedIn and Facebook by B2B executives in 2007 means that they are getting experience with these spaces and tools, which will change their expectations and drive further adoption in 2008 to 2010." 

Electronic Payment Process

The Scope of E-commerce
Companies involved in e-commerce as ether buyer s or sellers rely on Internet based technologies, and E-commerce applications and service to accomplish marketing, discovery, transaction, processing, and product and customer services processing.


For example, electronic commerce can include interactive, marketing, ordering, payment, and customer support process at E-commerce catalog and auction site on the World Wide Web, extranet access of inventory databases by customers and suppliers, intranet access of customer relationship management systems by sales and customer collaboration in product development via E-mail and internet newsgroup.


Many companies today are participating in or sponsoring three basic categories of electronic commerce applications, business-to-consumer, business-to-business and consumer-to-consumer E-commerce. However, many E-commerce concepts apply to such applications.

Business to Consumer or B2C
In this form electronic commerce, business must develop attractive electronic marketplaces to entice and sell product and services to consumer. For example, many companies offer E-commerce websites that provide virtual storefronts and multimedia catalogs, interactive order processing, secure electronics payment system, and online customer support.


Business to Business or B2B
This category involves both electronic business marketplace and direct market links between businesses. For example, many companies offer secure Internet or extranet E-commerce catalog websites for their business customers and suppliers. Also very important are B2B E-commerce portal that provide auction and exchange marketplace for businesses. Others may rely on electronic data interchange (EDI) via internet, or extranet for computer to computer exchange of E-commerce documents with their larger business customer s and suppliers.


Consumer to Consumer or C2C
The huge success of online auctions like eBay, where consumers can buy and sell with each other in an auction process at an auction website, make this E-commerce model an important E-commerce business strategy.

http://youtu.be/lzsBwnv_dAg

Computer Hardware

What is Hardware?

Your PC (Personal Computer) is a system, consisting of many components. Some of those components, like Windows XP, and all your other programs, are software. The stuff you can actually see and touch, and would likely break if you threw it out a fifth-story window, is hardware.


Not everybody has exactly the same hardware. But those of you who have a desktop system, like the example shown in Figure 1, probably have most of the components shown in that same figure. Those of you with notebook computers probably have most of the same components. Only in your case the components are all integrated into a single book-sized portable unit.

Figure 1

The system unit is the actual computer; everything else is called a peripheral device. Your computer's system unit probably has at least one floppy disk drive, and one CD or DVD drive, into which you can insert floppy disks and CDs. There's another disk drive, called the hard disk inside the system unit, as shown in Figure 2. You can't remove that disk, or even see it. But it's there. And everything that's currently "in your computer" is actually stored on that hard disk. (We know this because there is no place else inside the computer where you can store information!).

Figure 2

The floppy drive and CD drive are often referred to as drives with removable media or removable drives for short, because you can remove whatever disk is currently in the drive, and replace it with another. Your computer's hard disk can store as much information as tens of thousands of floppy disks, so don't worry about running out of space on your hard disk any time soon. As a rule, you want to store everything you create or download on your hard disk. Use the floppy disks and CDs to send copies of files through the mail, or to make backup copies of important items.

Random Access Memory (RAM)

There's too much "stuff" on your computer's hard disk to use it all at the same time. During the average session sitting at the computer, you'll probably use only a small amount of all that's available. The stuff you're working with at any given moment is stored in random access memory (often abbreviated RAM, and often called simply "memory"). The advantage using RAM to store whatever you're working on at the moment is that RAM is very fast. Much faster than any disk. For you, "fast" translates to less time waiting and more time being productive.


So if RAM is so fast, why not put everything in it? Why have a hard disk at all? The answer to that lies in the fact that RAM is volatile. As soon as the computer is shut off, whether intentionally or by an accidental power outage, every thing in RAM disappears, just as quickly as a light bulb goes out when the plug is pulled. So you don't want to rely on RAM to hold everything. A disk, on the other hand, holds its information whether the power is on or off.

The Hard Disk

All of the information that's "in your computer", so to speak, is stored on your computer's hard disk. You never see that actual hard disk because it's sealed inside a special housing and needs to stay that way. Unlike RAM, which is volatile, the hard disk can hold information forever -- with or without electricity. Most modern hard disks have tens of billions of bytes of storage space on them. Which, in English, means that you can create, save, and download files for months or years without using up all the storage space it provides.

In the unlikely event that you do manage to fill up your hard disk, Windows will start showing a little message on the screen that reads "You are running low on disk space" well in advance of any problems.  In fact, if that message appears, it won't until you're down to about 800 MB of free space. And 800 MB of empty space is equal to about 600 blank floppy disks. That's still plenty of room!

The Mouse

Obviously you know how to use your mouse, since you must have used it to get here. But let's take a look at the facts and buzzwords anyway. Your mouse probably has at least two buttons on it. The button on the left is called the primary mouse button, the button on the right is called the secondary mouse button or just the right mouse button. I'll just refer to them as the left and right mouse buttons. Many mice have a small wheel between the two mouse buttons, as illustrated in Figure 3.

Figure 3

The idea is to rest your hand comfortably on the mouse, with your index finger touching (but not pressing on) the left mouse button. Then, as you move the mouse, the mouse pointer (the little arrow on the screen) moves in the same direction. When moving the mouse, try to keep the buttons aimed toward the monitor -- don't "twist" the mouse as that just makes it all the harder to control the position of the mouse pointer.

If you find yourself reaching too far to get the mouse pointer where you want it to be on the screen, just pick up the mouse, move it to where it's comfortable to hold it, and place it back down on the mousepad or desk. The buzzwords that describe how you use the mouse are as follows:

• Point: To point to an item means to move the mouse pointer so that it's touching the item.
• Click: Point to the item, then tap (press and release) the left mouse button.
• Double-click: Point to the item, and tap the left mouse button twice in rapid succession - click-click as fast as you can.
• Right-click: Point to the item, then tap the mouse button on the right.
• Drag: Point to an item, then hold down the left mouse button as you move the mouse. To drop the item, release the left mouse button.
• Right-drag: Point to an item, then hold down the right mouse button as you move the mouse. To drop the item, release the right mouse button.

The Keyboard

Like the mouse, the keyboard is a means of interacting with your computer. You really only need to use the keyboard when you're typing text. Most of the keys on the keyboard are laid out like the keys on a typewriter. But there are some special keys like Esc (Escape), Ctrl (Control), and Alt (Alternate). There are also some keys across the top of the keyboard labeled F1, F2, F3, and so forth. Those are called the function keys, and the exact role they play depends on which program you happen to be using at the moment.

Most keyboards also have a numeric keypad with the keys laid out like the keys on a typical adding machine. If you're accustomed to using an adding machine, you might want to use the numeric keypad, rather than the numbers across the top of the keyboard, to type numbers. It doesn't really matter which keys you use. The numeric keypad is just there as a convenience to people who are accustomed to adding machines.

Figure 4

Most keyboards also contain a set of navigation keys. You can use the navigation keys to move around around through text on the screen. The navigation keys won't move the mouse pointer. Only the mouse moves the mouse pointer.

On smaller keyboards where space is limited, such as on a notebook computer, the navigation keys and numeric keypad might be one in the same. There will be a Num Lock key on the keypad. When the Num Lock key is "on", the numeric keypad keys type numbers. When the Num Lock key is "off", the navigation keys come into play. The Num Lock key acts as a toggle. Which is to say, when you tap it, it switches to the opposite state. For example, if Num Lock is on, tapping that key turns it off. If Num Lock is off, tapping that key turns Num Lock on.

Combination Keystrokes (Shortcut keys)

Those mysterious Ctrl and Alt keys are often used in combination with other keys to perform some task. We often refer to these combination keystrokes as shortcut keys, because they provide an alternative to using the mouse to select menu options in programs. Shortcut keys are always expressed as:

key1+key2

where the idea is to hold down key1, tap key2, then release key1. For example, to press Ctrl+Esc hold down the Ctrl key (usually with your pinkie), tap the Esc key, then release the Ctrl key. To press Alt+F you hold down the Alt key, tap the letter F, then release the Alt key.

Jus nw at tutoriol miss ard start a new chapter tat is Internetworked E-business enterprise...It let me know more  info about website,website address,etc in my daily life using Internet....haha ^.^

Wao,jus finished my mid sem break 2weeks and back to Seremban at 11/11/11......
Yesterday nite jus finished my STID mid term....hope i can get a flying colour result...xixixi

A busy week~@_@

This week full of assignment, quiz, mid-term.....Tired....@_@

About me........^^

Hi,everyone..nice to meet all of u...I had been created dis blog for my subject Information System . I hope tat i can get all the information of dis subject from all of u and my lovely lecture Miss Sharifah too..thx a lot....