Roberto Nubolt
to learn more about me - buy me a few beers and clear your schedule ;)
Web service. A Web service is a method of communications between two electronic devices over a network.
It is a software function provided at a network address over the web with the service always on as in the concept of utility computing. The W3C defines a Web service as: a software system designed to support interoperable machine-to-machine interaction over a network. SOAP. Characteristics[edit] SOAP can form the foundation layer of a web services protocol stack, providing a basic messaging framework upon which web services can be built.
This XML-based protocol consists of three parts: an envelope, which defines what is in the message and how to process it, a set of encoding rules for expressing instances of application-defined datatypes, and a convention for representing procedure calls and responses. SOAP has three major characteristics: extensibility (security and WS-routing are among the extensions under development), neutrality (SOAP can be used over any transport protocol such as HTTP, SMTP, TCP, UDP, or JMS), and independence (SOAP allows for any programming model). As an example of how SOAP procedures can be used, a SOAP message could be sent to a web site that has web services enabled, such as a real-estate price database, with the parameters needed for a search.
History[edit] Platform as a service. Platform as a service (PaaS) is a category of cloud computing services that provides a computing platform and a solution stack as a service.[1] Along with software as a service (SaaS) and infrastructure as a service (IaaS), it is a service model of cloud computing.
In this model, the consumer creates the software using tools and/or libraries from the provider. The consumer also controls software deployment and configuration settings.
Tablets. Hiyah!