Hiei Luantan Series: comprehensive review Web2.0
I. Summary
Web2.0 showered from the rostrum, to the bombing of the media-lun, Web2.0 era has arrived, you ready?
As the needs of the project, huh, although previously heard of Web2.0, but Jacky and objected to the project until pressed, and finally to sort out what Web2.0 before tousled information, from online selection of more articles, compiled as follows.
Second, the basic concept of Web2.0
On Web2.0 before Web1.0 and Web2.0 explain the basic concept.
Web1.0: 2003 before the Internet model, the operating system simply through a Web browser (such as Internet Explorer, Netscape, Firefox, Mozilla, etc.) Html Web browser as a model.
Web2.0: new class of Internet applications collectively, is a core content of the external application of the revolution, its contents even richer, and stronger ties, tools and more, the Internet has become the new trend of development.
Web1.0 to Web2.0 changes that have the following specific points:
1, from the model is simple "read" to "write", "to build" development;
2, from passively receiving information to the Internet initiative towards creating Internet information;
3, a basic unit, is "page" to "a / records information";
4, from the tool, it is from the Internet browser to a wide range of browsers, such as rss reader content development;
5, the operational mechanisms, "Client Server" to "Web Services";
6, the author programmers, and other professionals from all ordinary users to development;
7, the initial application from the "ridiculous" to the full application of large-scale application development.
In short, Web2.0 is Flickr, Craigslist, Linkedin, Tribes, Ryze, Friendster, Del.icio.us, 43Things.com Web sites for a representative to Blog, TAG, SNS, RSS, wiki applications at the core, according to six of separation, xml, ajax new theory and technology to meet the new generation of the Internet model.
Third, new things
Faced with so much on behalf of the future development trends of the emerging Internet of things, perhaps not very many people understand, and sorted out a part described below.
Blog - blog / blog Blog is the full name of Web log, later known as Blog. Blog is an easy-to-use Web site, you can quickly release in which ideas with others and engage in other activities. All of which are free of charge.
Blog history
The term originated in the Blog weblog, which means online log. By 1997 by Jorn Barger. In 1998, infosift editor Jesse J. Garrett (http://www.jjg.net), the blog will be similar to some of the collection sites, and sent Cameron Barrett. Cameron will be followed in the list released CamWorld site, many people will also have the blog URL to Cameron, slowly, a new online communities like molding. In 1999, Brigitte Eaton (http://www.eatonweb.com) to set up a weblog directory, a collection of her knowledge blog station. 1999, Peter Merholz (http://www.peterme.com) for the first time the use of acronyms "blog", a term commonly used today. However, the blog started rapid development of the real turning point in June 1999, when Pitas began offering free weblog service, followed in August, Pyra lab has now launched the blogger.com. It provides a simple and easy blogger.com note, as well as through FTP directly to the blog published in the website of the features that users bring great convenience. There is now a lot of Blog hosting service providers (BSP), the industry their business outlook, a cautious optimism.
Blog features
Blog is to individuals or groups by a chronological record, and constantly updated. Blog exchanges between mainly through the retrospective use (TrackBack) and the response / message / comment (comment) the way. Blog terms of operation and management, but also from a large number of file management terms. A blog can be regarded as a file (archives) or file (fonds). With the traditional file difference is that the writer of the blog (blogger), is the creator of the file (creator), is its file manager (archivist).
Blog use of the large number of RSS (Really Simple Syndication or Rich Site Summary or RDF Site Summary) technology, all the documents must be consistent with RSS by the W3C XML 1.0 specification released. On the reader, can subscribe to a blog via RSS, it is learnt that the blog author of the recent updates. Author of Blog, RSS can make its published articles are easy to understand and computer program summary.
And the creation of knowledge management, the blog provides a new form and way. Native to the Chinese people, blog writing is a continuation of Chinese literary tradition of excellence notes, more fully to encourage personal expression. Morphological study from the exchanges, the blog space (blogosphere) to set a positive readers, authors, editors interactive conversion relations, "speaker and mutual respect, viewers相惜."
Tag
Tag (label) is a more flexible and interesting log classification, you can log every add one or more Tag (label), and then you can see all BlogBus and Tag you use the same log, and This and other users have more contact and communication. Not only that, we have also cooperation with Technorati, your Blog Tag sent to the global space, and the people of the world share.
Tag reflects the strength of the masses, making the correlation between log and the interaction between users has been greatly enhanced, allows you to see a more diverse world, a greater correlation Blog space, a hot-rolling News. Tag provide you with a new level of network experience. Of course, you can simply bring a Tag (label) interpreted as a log classification, but the Tag and the differences in classification are obvious: First, the classification is before you log on to write for good, and you finished in the Tag After adding the log and secondly, you can log affixed at the same time a good number of Tag (label), at their own convenience View, originally a log there can be only one classification; again, when you have accumulated a certain number of Tag Then, you can look at themselves in the Blog of the most frequent topic of what is written in the end, you can see what their own use and the same Tag (label), and then you find like-minded Blogger.
Cite an example, for instance: you write a travel log to the West Lake, you are original to this type of log into their own "donkey to the world" classification, but a Tag, you can give this blog at the same time with "tourism", "Hangzhou", "West Lake", "donkey to the world", and several other Tag, when surfers click on any one of those Tag, he can see you this log. At the same time you can also click on their own these Tag, to see whether anyone has recently travel to Hangzhou, perhaps you can also exchange views about tourism and become the next travel partners?
RSS - Abstract RSS is the site and other sites to share content between the site of a simple method (also called the Syndicate content) technology. From the initial browser, "the news channel," the technology is now commonly used by the press and other order of the site, such as Blog.
RSS is used to share news and other Web content of the data exchange standards, originated in Netscape Communications Corp. pushing "Push" technology, subscribers will be transmitted to subscribe to the content of their communications synergistic format (Protocol). RSS can be explained by the following three one:
Really Simple Syndication (real simple integration)
RDF (Resource Description Framework) Site Summary
Rich Site Summary (rich site summary)
But this explanation is that the three with a Syndication technology.
At present the main RSS norms 0.91,1.0 and 2.0 versions. Version 0.91 and version 1.0 completely different, different style, standard-setting people are also different. 0.91 version and the version 2.0 the same strain. Version 1.0 also move closer to the XML standard. RSS is widely used blog, wiki and online news channels, most of the world's leading news agency Web sites provide RSS feeds support.
WIKI - Wiki Encyclopedia - a more collaborative authoring tools. Wiki site can be more (or even any visitors) maintenance, everyone can express their views, or the common theme to expand or explore.
Wiki refers to a hypertext system. This hypertext system to support community-oriented collaborative writing, but also includes a group to support this writing aids. Some people think that, Wiki system is a grid system of human knowledge, we can be on the basis of the Web Wiki text browser, create, modify, and create, modify, issued by the small price than HTML text At the same time Wiki system also supports community-oriented collaborative writing, collaborative writing to provide the necessary assistance; Finally, the writer Wiki natural components of a community, Wiki system for the community to provide simple communication tool. And other hypertext systems, are easy to use and open Wiki features, Wiki system can help us in a community, sharing in a field of knowledge.
Wiki Hawaiian language from the word "wee kee wee kee", the "hurry up quickly," was intended. Wiki refers to here is a hypertext system. This hypertext system to support those of the community-oriented collaborative writing, but also includes a group to support this writing aids. Some people think that, Wiki system is a network system of human knowledge, we can be on the basis of the Web Wiki text browsing, creation, modification, and that the creation, modification, and distribution of the costs than small HTML text with the At the same time Wiki system also supports community-oriented collaborative writing, collaborative writing for providing the necessary help Finally, the writer Wiki natural components of a community, Wiki system for the community to provide a simple tool for communication . And other hypertext systems, and easy-to-use Wiki has the advantage of opening up, Wiki system can help us in a community with a shared knowledge in the field of.
Wiki origin - 1995 • Ward Cunningham (Ward Cunningham) To facilitate the exchange of model community created the world's first system of a wiki - WikiWikiWeb, and used it to build a knowledge base model Portland (Portland Pattern Repository). In the establishment of the system in the process of Ward Cunningham created a Wiki • The concept and name, and implement the concept of services to support these systems. The system is the first Wiki system. From 1996 to 2000, the knowledge base around the Portland model for the community, collaborative writing, and constantly develop some support this writing aids, so that the concept of Wiki has been continuously enriched. At the same time, the concept of Wiki has spread, there are many similar sites and software systems. Wiki not long history, whether Wiki concept itself, or related software system characteristics, are still in heated discussions, so what can be called a site is a Wiki system is controversial. Wiki associated with emerging technologies have blog, they are reduced hypertext writing and publishing more difficult. They are both with the content management system are closely related.
Wiki features
Maintaining efficient: the rapid creation, access, changes hypertext pages (which is why called "wiki wiki" reasons).
Format simple: marked by a simple format to replace the complex HTML format markings. (Similar to the style WYSIWYG)
Convenient links: simple markings were directly keywords to establish links (pages, external links, images, etc.).
Naming Accessibilty: Key words from the page name, and was placed in a single layer, flat name space.
Can be growth: the pages of links objectives can not exist, by clicking on the link, we can create these pages, thus allowing the system to grow.
Revision history: a record of the history pages, and the various versions of the pages can be obtained.
Open: the members of the community can be created, modified, or deleted pages.
Can be observed: in the pages of the system changes can be clearly observed by visitors.
Wiki as a self-organized, as well as observation of the growth characteristics of the Wiki itself has become the object of a research network. Wiki on the study may be able to let people on the network gained a deeper understanding.
Net pick
"Net pick," also known as "Web Site", originated from a website called Del.icio.us the United States since the beginning of 2003 called "social bookmarks" (Social Bookmarks) network services, as surfers "delicious bookmarks" (Delicious in English which means "delicious; interesting"). [Specific]
SNS - Social Network Software social networks, social networking software, according to six-times theory, to understand the basis for a friend of a friend, and expand their contacts. And unlimited expansion of their own networks, in the time of need, can be obtained at any time, the connections get help. SNS site, is based on the theory of six times before the website operators friends help you circle friends.
P2P - on the P2P network, such as the peer-to-peer the acronym in English, there are peer "(status, capacity, etc.) equal" and "colleagues" and "partnership" significance. As a result, the P2P it can be understood as "partners of the partnership", "peer-to-peer" means, such as networking or called for. People think that their current network上人in strengthening the exchange of file-sharing, distributed computing, and other promising areas.
IM - Messenger instant messaging (Instant Messenger, or IM) software can be said to be China's Internet users the highest attendance software.
Internet users who chat online has been one of the major activities, online chat has been the main tool from the initial chat rooms, forums into the MSN, QQ, represented by instant messaging software. Most people will be online as long as your own MSN or QQ.
As the most frequently used network software, instant messaging already exceeded the limit, as a technical tool, and is regarded as a symbol of the modern modes of communication, and to build a new social relations. It is so far of human social life the most profound change in the new form of a network, not the limit of communication will bring no limit life.
Six times before relations theory
Currently popular "six times before separation" theory of the 20th century by the United States of the 1960s psychologists Migelanmu (Stanley Milgram), the popular theory can be described as follows: a maximum of six through you can understand any stranger people. "Segregated six times before," a world of interpersonal relationships undeniable and alarming features of the many in-depth sociological study presented convincing evidence that this feature is not just a special case, also in the general case exist. Recently, the United States Department of Sociology at Columbia University, led by Professor EMAIL Waci test once again proved this interpersonal alarming regularity in the world. However, in the real world, 6.0 billion people how this may really be a closely interrelated? The Internet so that all become a reality.
Xml
XML can Extensible Markup Language (eXtensible Markup Language). Marking is that the computer can understand the information symbols, through such markings can be dealt with between the computer contains all kinds of information, such as articles. How to define these markers, we may choose international common markup language, such as HTML, XML can also be used as such by the relevant people to freely determine markup language, which is language scalability. XML is the simplification of SGML amend them. It is mainly used by XML, and XSL such as XPath.
AJAX
Ajax is not a technology. It actually has several popular technology in their respective areas of the powerful combination. Ajax mixed:
* Based on XHTML / CSS
* DOM (Document Object Model) to achieve dynamic display and interaction
* Through XML and XSLT for data exchange and processing
* Use integration of this technology javascript
Ajax said that the visual can be achieved not refresh browser window (of course, not to install additional plug-ins) to meet the operational users, some looked very Cool site with a lot of this technology is realized, including: orkut , Gmail, Google Group, Google Suggest, Google Maps, Flickr, such as A9.com. Co-mment 2SIMPLE Although there is no system uses XML / XSLT, its philosophy has been covertly capacity Ajax, has not updated web site provides dynamic, to users.
Existing products: Wiki Encyclopedia, Wallop, yahoo360, openbc, cyworld, 43things, flickr, del.icio.us, cragslist, glob, passengers gathered, friendster, linkin, UU-excellent Friends of the sky network, love metres net, linkist, Sina little Qualcomm, skype, eFriendsNet, cyworld……
4, the conclusion
Web application from the product / service producers point of view, how to create Web 2.0 products? It is important to seize such points is a micro-content (here defined), one individual users. Apart from these two basic, could also be considered within the community as well as the sharing of API.
Web2.0 also includes two important elements of the peacekeeping content and individual users.
Micro-content
English is microcontent. Produced by any user data is micro-content, such as a blog, comments, pictures, collection of bookmarks, the list of music preferences, want to do things, want to go places, new friends, and so on. These micro-content, full of our lives, work and study, the number of its importance, and we rely on it, and inferior to those Daomaoanran, up by orthodox papers, theses, books.
On the contents of the re-discovery and use of the Internet, created by the equal freedom of ,***, natural derivative, is the Internet-related information technology management cost reduction after an achievement.
Every day we produce numerous micro-content and consumption with the same number of micro-content. The Web 2.0, how to help users manage, maintain, store, share, transfer of micro-content, a critical.
Individual users
Web 1.0 for the typical product / service, users do not have a specific look, personality, it is only a fuzzy synonym for groups only. But for Web2.0 products and services, the user is a real person. Web 2.0 service, is a specific person, rather than as a ghost-like concept. In addition, the specificity of this person, because services will be constantly enriched themselves up.
How to specific individual services, Web 2.0 is the starting point for design. Therefore, a class can be called Web 2.0 products / services will be this: individual users of the service in the collection of micro-content, the creation, publishing, management, sharing, cooperation, the maintenance of the platform.
I am afraid that some people in the design mentioned in the contents of the XML-performance micro-content polymerization; micro-content migration; the maintenance of social relations; interface ease of use and so on. Its quality, and is it open source, participation, personal values, the grassroots, cooperation and so forth?
Web2.0 is many times and mutual implicated beginning of a new phase of the arrival. Therefore, different people have different views. Well, for Web developers, Web2.0 What does it mean?
They said that Web2.0 stage, is a Web platform, or that the Web is becoming programmable, Web applications can be implemented. Careerist envisage that the ultimate goal of this it is the Web OS.
Web 1.0, the Web is a read for the release of the platform from one of the Web hypertext links from. Now the trend has changed, Html Web is not just the domain of documents, it became interactive sites.
Web 2.0 Conference website banners Jeff Bezos quoted as saying "Web 1.0 is making the internet for people, web 2.0 is making the internet better for computers." Specifically, they say Web as a development environment, with Web services provided by the programming interface, the website has become software component.
These Web Service is the goal bar, isolated islands of information through these Web Service dialogue, freedom can be constructed for different applications to the building. Some examples: del.icio.us, flickr, a9, amazon, yahoo, google, msn provide programming interfaces derived from a variety of applications.
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