Introdução aos Serviços Web Web Services

Evolução da Web Páginas Estáticas Browser, Servidor Web, HTTP, HTML Servidor Web e Programas Externos CGI

Evolução da Web Páginas Dinâmicas Browser, Servidor Web, HTTP, HTTPS HTML,... Servidor Web e Programas Externos..., ASP, PHP,...

Evolução da Web Object Web Tecnologias Java (Servlets, JSP) Linguagens para scripts: JavaScript, PERL, PYTHON

PERL LANGUAGE Designed to be programmer-friendly and platform-neutral, Perl is a high- level, general-purpose programming language that makes easy and medium- hard tasks easy and seriously non-trivial tasks possible. Evolução da Web

Now well into its second decade, Perl has become the language of choice across all platforms for programmers engaged in rapid prototyping, system utilities, software tools, system management tasks, data base access, graphical programming, and world wide Web programming.

Evolução da Web Python Language Python is an OO scripting language that does all the things that you can do with Perl or TCL only better since it was designed from the ground up as an OO language. There is lots of documentation on the language available at as well as source code and binaries for UNIX, Macintosh, Win95/NT, DOS, etc.

Evolução da Web Web Semantic Tratamento do significado da informação

Evolução da Web Conceito de Serviço: Uma abstração de um conjunto de operações providas a clientes, as quais permitem a eles realizarem uma particular função.

Evolução da Web Paradigma da Computação com Objetos Distribuídos - dificuldades apresentadas por CORBA para Web, - middleware com protocolo binário (CORBA-IIOP, RMI-IIOP), - Firewalls.

Evolução da Web Paradigma da Computação Distribuída para Serviços Web - Objetos - XML

O que é Serviço Web? Um Serviço Web é a lógica de uma aplicação, disponível programaticamente e acessível sobre a Internet/Web, através da padronização de XML e construída sobre protocolos padronizados XML.

Acesso de informação é através de um browser. Aplicações Web tradicionais não expõem a lógica da aplicação. Web Service é disponível para uma variedade de clientes (independência de plataforma). Torna a construção de aplicações distribuídas na Web menos difíceis. O que é Web Service ?

Arquitetura Orientada-a-Serviço Provedor do Serviço Corretor do Serviço Requerente do Serviço Descobre Ligação Publicação

Questões Comuns Como descrever um serviço Web ? - Que protocolos ele suporta ? XML-RPC, HTTP+SOAP-XML - Que tipos de dados ele usa ? Schemas XML Como publicar a localização de um Serviço Web ?

Web Services Tools Users Questions Related to Web Services Application

What is your intended use of Web services? for application to application connectivity for web enabling existing applications to build new composite applications to interoperate across disparate platforms

What form of Web services do you build/plan to build? RPC style Message / doc style

Which of the following benefits of Web services is most attractive to you? it provides a way of reusing existing applications in new ways it provides a way of connecting using open standards based approach it provides a way of interoperating across disparate platforms/operating system

Which of the following benefits of Web services is most attractive to you? it provides a way of building composite applications dynamically it speeds up application development process it simplifies application development process

What technologies are you using when building Web services enabled applications ? SOAP (Simple Object Application Protocol) SCL (SOAP Contract Language) UDDI (Universal Description, Discovery, and Integration) WSDL (Web services Description Language)

What technologies are you using when building Web services enabled applications ? LDAP (Lightweight Directory Access Protocol) WSFL (Web Services Flow Language) BPEL ( Business Process Execution Language)

What technologies are you using when building Web services enabled applications ? ebXML (Electronic Business using eXtensible Markup Language) SOA (Service Oriented Architecture)

What languages do you use to develop Web services? Java tools C or C++ tools C# tools VB tools

What languages do you use to develop Web services? Legacy language tools such as COBOL or PL1 Scripting language tools HTML or XML tools Other tools

What is the development platform you use to develop Web services enabled applications on? Windows 2000 or NT Windows XP Solaris Linux HP-UNIX

What is the target deployment platform for the Web services you have or plan to develop? WebSphere AS BEA Sun Oracle J2EE

What is the target deployment platform for the Web services you have or plan to develop? Other Unix Novell NetWare OS390 Netware Mac OS

What is the target deployment platform for the Web services you have or plan to develop? IBM AIX IBM i-series Other

What is the target deployment platform for the Web services you have or plan to develop? Microsoft.NET Open Source Don't know - just evaluating

Which Web services tools you have evaluated and which you are currently using to develop of Web services enabled applications? Apache Project SOAP Module BEA WebLogic Workshop Borland JBuilder Cape Clear Studio HP NetAction toolkit IBM WebSphere SDK for Web Services IBM WebSphere Studio Application Developer

Which Web services tools you have evaluated and which you are currently using to develop of Web services enabled applications? IBM WebSphere Studio Site Developer IBM WebSphere Studio Integration Edition Microsoft.NET Microsoft.NET SDK Oracle.NOW Dynamic Web Services Sun Studio ONE Sun Java Web Services Development Pack Systinet Developer The Mind Electric Glue

O que você prefere ? Which of the tools before presented you would be your preferred choice to develop Web services enabled applications?