This paper discusses an efficient solution to contemporary situation assessment problems found in environmental management applications. The targeted problems are inherently complex and require processing of large quantities of heterogeneous information by using rich domain knowledge dispersed through multiple organizations. We assume a collaborative solution based on the Dynamic Process Integration Framework, which supports systematic encapsulation of heterogeneous processing services, including human experts. The encapsulation allows dynamic composition of heterogeneous processing services using advanced self-configuration mechanisms for optimal selection of service providers. Self-configuration is based on a framework for development of cooperative multi-issue one-to-many service negotiations. The framework allows the definition of: negotiation protocols, negotiation subjects composed of multiple negotiation issues, properties of negotiation issues, deal spaces, and utility functions of participant stakeholders. We show how this framework can be used for dynamic composition of workflows spanning multiple organizations in a disaster management information system.