Larry Ellison on Cloud Computing
Source: http://www.youtube.com/watch?v=KmXJSeMaoTY
Interesting video of Oracle's CEO Larry Ellison explaining that "Cloud Computing" is just another meaningless term that does nothing to advance the discussion of networked services. Does anybody else tend to agree with him?
Intro to REST Video
Source: http://www.youtube.com/watch?v=YCcAE2SCQ6k
Very nice overview of REST (Representational State Transfer) from Google.
High Level Overview of Service-Oriented Architecture (SOA)
Service Oriented Architecture or SOA is a systems integration architecture for the development of loosely coupled and distributed applications in an enterprise. SOA encompasses many services found on the network. These services communicate with each other and the communications involves data exchange and even service coordination. Generally SOA can be classified into two terms Services and Connections.
Services:
A service is a function or some processing logic or business processing that is well-defined, self-contained, and does not depend on the context or state of other services. An example of a service is Loan Processing or online booking of a flight. Another example may be a Weather Service, which can be used to get weather information. Any application (Service Consumer) on the network can use the Weather Service (Service Provider) to get weather information it needs.
Connections:
Connections are the link of connecting self-contained distributed services with each other, it enables the Service Consumer and Service Provider to communicate with each other. For Web services, SOAP over HTTP is typically used to communicate between services.
The following figure is a simple example of the service-oriented architecture. It shows how a service consumer sends a service request to a service provider. After accepting the request, the service provider sends a message back to the service consumer providing it with the information it needs.
SOA is different from other integration architectures, because it consists mostly of loosely coupled, highly interoperable application services. Services can be developed in different development languages (such as Java, .NET, C++, PERL, PHP) and the software components become reusable. For example the same C# service may be used by a Java application. A WSDL defines a standard, which allows different SOA components/technologies to talk to each other.
Sources:
http://en.wikipedia.org/wiki/Service-oriented_architecture
http://www.roseindia.net/webservices/
Services:
A service is a function or some processing logic or business processing that is well-defined, self-contained, and does not depend on the context or state of other services. An example of a service is Loan Processing or online booking of a flight. Another example may be a Weather Service, which can be used to get weather information. Any application (Service Consumer) on the network can use the Weather Service (Service Provider) to get weather information it needs.
Connections:
Connections are the link of connecting self-contained distributed services with each other, it enables the Service Consumer and Service Provider to communicate with each other. For Web services, SOAP over HTTP is typically used to communicate between services.
The following figure is a simple example of the service-oriented architecture. It shows how a service consumer sends a service request to a service provider. After accepting the request, the service provider sends a message back to the service consumer providing it with the information it needs.
SOA is different from other integration architectures, because it consists mostly of loosely coupled, highly interoperable application services. Services can be developed in different development languages (such as Java, .NET, C++, PERL, PHP) and the software components become reusable. For example the same C# service may be used by a Java application. A WSDL defines a standard, which allows different SOA components/technologies to talk to each other.
Sources:
http://en.wikipedia.org/wiki/Service-oriented_architecture
http://www.roseindia.net/webservices/
Integration of a another kind.....Lifecasting.....
Nokia, Facebook Link GPS, Social Networking
http://www.businessweek.com/globalbiz/blog/europeinsight/archives/2009/09/nokia_facebook.html
Posted by: Jack Ewing on September 02
For more than a year Nokia execs have been forecasting that the GPS capability of high-end mobile phones would mesh with social networks. Now the Finnish handset maker is trying to get out in front of the trend, announcing an agreement with Facebook that will let users broadcast their locations to friends. The new service, which Nokia is calling lifecasting, means you can let your Facebook friends know when you’re in the neighborhood. Instead of just connecting online, you could actually meet in the flesh.Lifecasting will come with the N97 mini when the $630 device begins shipping in October. It will also be available as a free download for owners of the N97, Nokia’s current top-of-the-line smartphone. The announcement, made Sept. 2 at the Nokia World event in Stuttgart, is part of a broader product and software offensive designed to reassert the company’s dominance in high-end devices.
Lifecasting could help push online interaction back into the physical world—a potentially powerful development, especially if the service resonates with customers and application developers, and they find creative ways to use it.
But history has also shown that such new developments often take years to catch on because they require a big change in user behavior. Nokia, which beat Apple to the market by years with devices that could surf the Internet, was not as successful as its rival in getting customers to actually use the capability. And the company is weak in the U.S. where Internet-based services often catch on first.
Lifecasting is a great idea, but Nokia will have to show it has learned how to make such inventions not only possible but appealing and usable.
http://www.businessweek.com/globalbiz/blog/europeinsight/archives/2009/09/nokia_facebook.html
Posted by: Jack Ewing on September 02
For more than a year Nokia execs have been forecasting that the GPS capability of high-end mobile phones would mesh with social networks. Now the Finnish handset maker is trying to get out in front of the trend, announcing an agreement with Facebook that will let users broadcast their locations to friends. The new service, which Nokia is calling lifecasting, means you can let your Facebook friends know when you’re in the neighborhood. Instead of just connecting online, you could actually meet in the flesh.Lifecasting will come with the N97 mini when the $630 device begins shipping in October. It will also be available as a free download for owners of the N97, Nokia’s current top-of-the-line smartphone. The announcement, made Sept. 2 at the Nokia World event in Stuttgart, is part of a broader product and software offensive designed to reassert the company’s dominance in high-end devices.
Lifecasting could help push online interaction back into the physical world—a potentially powerful development, especially if the service resonates with customers and application developers, and they find creative ways to use it.
But history has also shown that such new developments often take years to catch on because they require a big change in user behavior. Nokia, which beat Apple to the market by years with devices that could surf the Internet, was not as successful as its rival in getting customers to actually use the capability. And the company is weak in the U.S. where Internet-based services often catch on first.
Lifecasting is a great idea, but Nokia will have to show it has learned how to make such inventions not only possible but appealing and usable.
