Example of Design Activity Model

As a part of the software engineering lifecycle of the development of CAPE-SAFE, user requirements have been conducted on Oil Gas plant where one of their management objectives is to develop and implement an integrated plant enterprise safety management system. As a result of the analysis phase the main components of CAPE-SAFE have been identified along with the expected functions for each component. 

CAPE-SAFE is part of the plant enterprise engineering environment that is aimed to manage all safety related aetivities throughout the plant lifecycle. To achieve that, CAPE-SAFE is designed as an integrated environment as in figure 7-1. 

In this section, detailed module specifications will be presented. 

HAZOP is one of the commonly methods for hazard and operability analysis. However, it may not be the best for all hazard evaluation cases or situations throughout the plant lifecycle. Hence, we are proposing an integrated hazard evaluation manager (HEM) module that can apply the most suitable qualitative and/or quantitative hazard evaluation method for each situation based on selection criteria. A built-in decision engine (expert system) is used to decide intelligently the most suitable hazard evaluation method based on the selection criteria. 

In order to manage and apply safety regulations, it is essential to analyze national, international, and corporate safety regulations and incorporate them into the plant enterprise safety environment in a structured manner so that it can be checked, applied, managed, and/or monitored. This requires online update from external sources (i.e. international standard web sites) as well as amendment facility by the enterprise safety personnel. SRM module will provide such facilities as integrated within CAPE-SAFE. 

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