Cloud Computing Implementation Management and Security phần 8

ũng cung cấp khả năng tương thích dài hạn tốt hơn bởi vì khả năng của các loại tài liệu như HTML để phát triển mà không vi phạm hoặc lùi lại khả năng tương thích và khả năng các nguồn lực để hỗ trợ thêm cho các loại nội dung mới như chúng được định nghĩa mà không giảm hoặc giảm hỗ trợ cho các loại nội dung cũ hơn . | 200 Cloud Computing also provides better long-term compatibility because of the capability of document types such as HTML to evolve without breaking backwards or forwards compatibility and the ability of resources to add support for new content types as they are defined without dropping or reducing support for older content types. One benefit that should be obvious with regard to web-based applications is that a RESTful implementation allows a user to bookmark specific queries or requests and allows those to be conveyed to others across email instant messages or to be injected into wikis etc. Thus this representation of a path or entry point into an application state becomes highly portable. A RESTFul web service is a simple web service implemented using HTTP and the principles of REST. Such a web service can be thought of as a collection of resources comprising three aspects 1. The URI for the web service 2. The MIME type of the data supported by the web service often JSON XML or YAML but can be anything 3. The set of operations supported by the web service using HTTP methods including but not limited to POST GET PUT and DELETE Members of the collection are addressed by ID using URIs of the form baseURI ID . The ID can be any unique identifier. For example a RESTFul web service representing a collection of cars for sale might have the URI http resources cars If the service uses the car registration number as the ID then a particular car might be present in the collection as http resources cars yxz123 SOAP SOAP originally defined as Simple Object Access Protocol is a protocol specification for exchanging structured information in the implementation Standards for Messaging 201 of Web Services in computer networks. It relies on XML as its message format and usually relies on other application-layer protocols most notably Remote Procedure Call RPC and HTTP for message negotiation and transmission. SOAP can form the foundation layer of a web .