On the basis of the requirements for the autonomy and
flexibility of a large-scale integrated information service
for railway emergency scenarios, the information sources
of scenario building have been discussed and the current
SOA-based integrated information approach has
been analyzed in this study. A framework model of the
integrated service based on SOAACM has also been proposed.
In this approach, each role of the local procedure
model is dynamically distributed to many service
nodes for direct data transfer between service nodes.
Through the software agent technology and the Web service
proxy provided by agents, the SOAACM-based distributed
integrated service system can be established.
The experimental results and analysis show that the proposed
approach is significantly more autonomous and
flexible than BPEL4WS.