A simple web service composition method

In this paper we propose a simple web service composition method, which according the number of the input and output interface. We divide the web services into four kinds according the number of the I/O interfaces: web services with (1) single input and single output; (2) single input and multi output; (3) multi input and single output; (4) multi input and multi output. We analyze the four kinds of web services respectively and give the according composition algorithm. The simulation experiment verified the effectiveness and efficiency.