In reality, it is very challenging to debug problems in SOAP messages. You can at least check whether a SOAP message is valid or not by looking up its interface definition, or its WSDL. Practically, you cannot tell whether the data in a SOAP message, is correct or not. What would happen if wrong SOAP messages are exchanged? What would happen if the wrong SOAP messages are processed unnoticed and even used to generate information for decision makers?
Web Services Description Language (WSDL) is an XML-based language in which an interface of a Web service is described.
The format of a SOAP message is written in the Extensible Markup Language (XML), a simple, flexible text format derived from the Standard Generalized Markup Language (SGML) which is developed by the International Organization for Standardization (ISO 8879:1986). Simple Object Access Protocol (SOAP) is a simple and extensible protocol by which structured and typed messages are exchanged in a decentralized, distributed network environment. What are Web services?Ī Web service is a software system to support interoperable machine-to-machine interaction between computational resources over a network using Simple Object Access Protocol (SOAP) messages defined by the World Wide Web Consortium. That is exactly what Web services are all about, except that they did not have XML, the Internet, or the World Wide Web back in the mid-1960s.įor those who are not so familiar with Web Services, let me briefly summarize definitions and major components of Web Services. The processing of the received messages is by computer only, and is not normally intended for human interpretation. According to the issued publication, EDI is the computer-to-computer interchange of strictly formatted messages. National Institute of Standards and Technology announced the standard for Electronic Data Interchange (EDI) in the Federal Information Processing Standards Publications (FIPS PUB 161-2). I first heard about EDI from a business school professor in the 1980s. The transport industry, such as railroad and shipping companies, introduced a new concept of electronic data interchange among computers, which later evolved into Electronic Data Interchange (EDI).
The basic concept of Web Services can be traced back to the mid-1960s in the United States. It seems that Web Services assured a place in the pantheon of internet innovations with the advent of new technologies and standards, such as XML and HTTP.
0 kommentar(er)
