A framework for automating operating procedure synthesis for batch processes was presented in Part I of this paper. In this Part, we present iTOPS, an Intelligent Tool for Operating Procedure Synthesis, an automated system which is an implementation of the proposed framework. iTOPS has been developed using Gensym＇s G2 expert system environment. The architecture of iTOPS and the implementation and algorithmic details of each of its components are explained. Also, the application of iTOPS to an industrial case study is presented. (C) 1998 Elsevier Science Ltd. All rights reserved.