A potentially valuable tool for the recruiting team and prospective tenants would be an evolving computer model of the exchange network,supported by materials and energy databases.This would enable simulation of process interactions within the potential network of companies, step-by-step.The survey of community industries and a commitment by an anchor tenant would define initial input needs and by-products that other companies might consume. The Brownsville Economic Development Corporation in Texas is working with Bechtel Corporation to develop this sort of model for the EIP there.