In addition to the architectural issue , let’s talk about two implementation problems: First, the serializing problem You always have to be aware of the fact that the Web Service’s ultimate type system is the XML type system. Given...

There are several problems with the described Web Service implementation . Let’s start with an architectural issue: DeletePerson represents a oneway operation and therefore, we have no possibility to be sure that the request has been...

Do you see a problem in the following Web Service implementation? My opinion about this code snippet will follow… namespace Issue2 { public class DeletePersonRequest { public string name; public string firstname; /...

The short answer to Issue 1 is int Add( int a, int b) The first time I’d noticed this behavior, I was pretty surprised! Why should I get a cracked signature although the WSDL obviously would lead to the following signature? AddResponseMsg...

Given the following messages and port type, what method signature will .NET's wsdl.exe generate? Answer (and more important explanations) will follow… < types > < s:schema elementFormDefault ="qualified" targetNamespace ="uri...

I’m currently preparing an architectural talk about “Indigo” and the underlying WS protocols. It will take place at the technical university in Vienna (TU-Wien) on 9 th March 2004. This talk won't be solely about “Indigo”...

I’ve seen it over and over; the so called magic presentation services: Systems that can easily support different channels and devices (Internet, WAP, Digital-TV, …) without explicitly designing applications or meta data for them. Don’t...

How many elements/attributes contains your XML representation of a person’s name? One (Fullname) Two (Firstname, Lastname) Three (Firstname, Middlename, Lastname) Four (Title, Firstname, Middlename, Lastname) … Check...

I’m in the process of preparing a Web Service “hands on” workshop. Therefore I was going to consolidate my favorite WS-tools. Here we go: · SoapScope 3.0 sniffing SOAP messages and analyzing WSDL · OmniOpera 1.5 creating...

After more than one year of weblog voyeurism, I finally decided to share my thoughts and entered the blogging space today. As an Architect Evangelist for Microsoft Austria , I support and consult companies in software architecture related topics and...