With SAP NetWeaver, developers can connect applications and data sources to integrate processes

  using Web services.

  In particular, developers can use one infrastructure to define, implement, and use Web services in

  an industry standards based way.

SAP NetWeaver supports synchronous, asynchronous, stateful and stateless web service models - enabling developers to support different integration scenarios.

Web Services Reliable Messaging

Integrating Applications Using WS-RM 

This presentation provides information on Web Services Reliable Messaging (WS-RM) support in SAP NetWeaver PI 7.1 and shows how to implement a WS-RM-based scenario with SAP NetWeaver PI 7.1.

SAP NetWeaver PI 7.1 - Configuring Web Service Scenarios 

This guide describes the configuration of Web service scenarios with SAP NetWeaver PI 7.1 for both direct (or: point-to-point) communication as well as Integration Server communication. It contains the detailed description of each configuration task. Additionally, an overview of supported security settings is provided that is complemented by links to detailed information on security configuration

Implementing a Distributed Two-Phase-Commit Scenario Using SAP NetWeaver PI 7.1 

This article covers the Tentative Update & Confirm/Compensate (TU&C/C) interface pattern supported in SAP NetWeaver PI 7.1.

Interaction Models for SOA Middleware   

This article describes models for interaction between providers and consumers of enterprise services.