Real-time web
Encyclopedia
The real-time web is a set of technologies and practices that enable users to receive information as soon as it is published by its authors, rather than requiring that they or their software check a source periodically for updates.
since there is no knowing when, or if, a response will be received. The information types transmitted this way are often short messages, status updates, news alerts, or links to longer documents. The content is often "soft" in that it is based on the social web
—people's opinions, attitudes, thoughts, and interests—as opposed to hard news or facts.
of an application) having its object class alive as a sub process (of its user session) in the server environment. In this scenario, the web is considered as the human entrance (interface) to the real-time environment: at each connected web URL, or Internet real-time zone, corresponds a different "front-end" web application. The real-time server acts as a logic network operating system for the programmable array of applications; handles the array of connected users for each application; attends for connections from real-world appliances and second level real-time servers. Applications behaviours and the intercommunication procedures between online services or applications, online users, and connected devices or appliances, are settled in the corresponding source code of each real-time service written in the real-time-interpreted programming language of the centric server.
As opposite to previous scenario, real-time web is exactly soft real-time computing
: the round trip of a data ping-pong signal from the real-time server to the client must take about 1s to be considered real-time and not to be annoying for humans (or users) during their connections. About the dispute between social web and real-time web, we can say real-time web is social by default and it is not true the contrary (WEB-r comes before Web 2.0). The WEB-r model is called true-realtime web to highlight the differences with the defective (de facto) model of real-time web generally perceived. From the industry point of view, this model of (general) real-time Internet can also be defined as electronic web, that comes with the intrinsic meaning of not being limited to the web side of the Net, and with the direct reference to its server/rest-of-the-world perspective as a mechanism of a single clock.
. Early benefits include increased user engagement ("flow") and decreased server loads. Starting December 2009, Google
introduced at the Computer History Museum their new real-time search features brought to Google search
.
The true-realtime web model was born in 2000 at mc2labs.com by an Italian independent researcher.
enable online activities to be queried as they occur. A traditional web search crawls
and indexes
web pages periodically, returning results based on relevance to the search query.
Difference from real-time computing
The real-time web is fundamentally different from real-time computingReal-time computing
In computer science, real-time computing , or reactive computing, is the study of hardware and software systems that are subject to a "real-time constraint"— e.g. operational deadlines from event to system response. Real-time programs must guarantee response within strict time constraints...
since there is no knowing when, or if, a response will be received. The information types transmitted this way are often short messages, status updates, news alerts, or links to longer documents. The content is often "soft" in that it is based on the social web
Social Web
The social Web is a set of social relations that link people through the World Wide Web. The Social web encompasses how websites and software are designed and developed in order to support and foster social interaction. These online social interactions form the basis of much online activity...
—people's opinions, attitudes, thoughts, and interests—as opposed to hard news or facts.
True-realtime web (an "alternate" model)
From another point of view, the real-time web consists in making the client interface (or the web side; or the web layer) of a web application, or a web site, to communicate continuously with the corresponding real-time server, during every user connection. As a fast pic of the client/server model, imagine each client object (each web module of the web GUIGui
Gui or guee is a generic term to refer to grilled dishes in Korean cuisine. These most commonly have meat or fish as their primary ingredient, but may in some cases also comprise grilled vegetables or other vegetarian ingredients. The term derives from the verb, "gupda" in Korean, which literally...
of an application) having its object class alive as a sub process (of its user session) in the server environment. In this scenario, the web is considered as the human entrance (interface) to the real-time environment: at each connected web URL, or Internet real-time zone, corresponds a different "front-end" web application. The real-time server acts as a logic network operating system for the programmable array of applications; handles the array of connected users for each application; attends for connections from real-world appliances and second level real-time servers. Applications behaviours and the intercommunication procedures between online services or applications, online users, and connected devices or appliances, are settled in the corresponding source code of each real-time service written in the real-time-interpreted programming language of the centric server.
As opposite to previous scenario, real-time web is exactly soft real-time computing
Real-time computing
In computer science, real-time computing , or reactive computing, is the study of hardware and software systems that are subject to a "real-time constraint"— e.g. operational deadlines from event to system response. Real-time programs must guarantee response within strict time constraints...
: the round trip of a data ping-pong signal from the real-time server to the client must take about 1s to be considered real-time and not to be annoying for humans (or users) during their connections. About the dispute between social web and real-time web, we can say real-time web is social by default and it is not true the contrary (WEB-r comes before Web 2.0). The WEB-r model is called true-realtime web to highlight the differences with the defective (de facto) model of real-time web generally perceived. From the industry point of view, this model of (general) real-time Internet can also be defined as electronic web, that comes with the intrinsic meaning of not being limited to the web side of the Net, and with the direct reference to its server/rest-of-the-world perspective as a mechanism of a single clock.
History
The most successful examples of real-time web are Facebook's newsfeed and Twitter. This approach is being implemented in social networking, search, and news sites, which makes those experiences more like instant messagingInstant messaging
Instant Messaging is a form of real-time direct text-based chatting communication in push mode between two or more people using personal computers or other devices, along with shared clients. The user's text is conveyed over a network, such as the Internet...
. Early benefits include increased user engagement ("flow") and decreased server loads. Starting December 2009, Google
Google
Google Inc. is an American multinational public corporation invested in Internet search, cloud computing, and advertising technologies. Google hosts and develops a number of Internet-based services and products, and generates profit primarily from advertising through its AdWords program...
introduced at the Computer History Museum their new real-time search features brought to Google search
Google search
Google or Google Web Search is a web search engine owned by Google Inc. Google Search is the most-used search engine on the World Wide Web, receiving several hundred million queries each day through its various services....
.
The true-realtime web model was born in 2000 at mc2labs.com by an Italian independent researcher.
Real-time search
A problem created by the rapid pace and huge volume of information created by real-time web technologies and practices is finding relevant information. One approach, known as real-time search, is the concept of searching for and finding information online as it is produced. Advancements in web search technology coupled with growing use of social mediaSocial media
The term Social Media refers to the use of web-based and mobile technologies to turn communication into an interactive dialogue. Andreas Kaplan and Michael Haenlein define social media as "a group of Internet-based applications that build on the ideological and technological foundations of Web 2.0,...
enable online activities to be queried as they occur. A traditional web search crawls
Web crawler
A Web crawler is a computer program that browses the World Wide Web in a methodical, automated manner or in an orderly fashion. Other terms for Web crawlers are ants, automatic indexers, bots, Web spiders, Web robots, or—especially in the FOAF community—Web scutters.This process is called Web...
and indexes
Index (search engine)
Search engine indexing collects, parses, and stores data to facilitate fast and accurate information retrieval. Index design incorporates interdisciplinary concepts from linguistics, cognitive psychology, mathematics, informatics, physics, and computer science...
web pages periodically, returning results based on relevance to the search query.
See also
- CometComet (programming)Comet is a web application model in which a long-held HTTP request allows a web server to push data to a browser, without the browser explicitly requesting it. Comet is an umbrella term, encompassing multiple techniques for achieving this interaction. All these methods rely on features included by...
- Collaborative real-time editor
- ScooplerScooplerScoopler is a real-time search engine. Scoopler was created by AJ Asver and Dilan Jayawardane, and launched in Private Beta in April 2009.. Scoopler gets its results real-time from a variety of services such as Twitter, Digg, Flickr and others. Scoopler is funded by Y Combinator..Scoopler's result...
- Prospective searchProspective searchProspective search, or persistent search, is a method of searching on the Internet where the query is given first and the information for the results are then acquired...
- Push TechnologyPush technologyPush technology, or server push, describes a style of Internet-based communication where the request for a given transaction is initiated by the publisher or central server...
- MicrobloggingMicrobloggingMicroblogging is a broadcast medium in the form of blogging. A microblog differs from a traditional blog in that its content is typically smaller in both actual and aggregate file size...