We have chosen Agent, Artificial object and Material and Natural

We have chosen Agent, Artificial object and Material and Natural construction as the sub concepts of Object. Agent has two concepts called Macro agent and Micro agent. Concepts of systems, such as Social system, Ecosystem, and Industrial Ecology, are sub concepts of Macro agent. Artificial object and Material is subdivided into Artificial object, which includes Building, Urban infrastructure, and Transportation infrastructure, and Substance-resource, which includes Substance and Resource, etc. The sub concepts of Process include Activity, Phenomenon, Circulation, and Situation. Activity is divided into four concepts: Life, Production process, Industry, and Action. HDAC inhibitor mechanism Circulation is divided into three concepts:

Material circulation in the natural environment, Material circulation based on economic activity, and Circulation of life. (b) Slots for explicating is-a relationships (parts and attributes). Process is specified beta-catenin mutation using slots for input and output. Divergent exploration of sustainability science knowledge 1. Divergent exploration of knowledge depending on multiple HMG-CoA Reductase inhibitor viewpoints At Layer 1, the SS ontology has been designed to provide an explicit conceptual structure and machine-readable

vocabulary of domains for knowledge structuring. While it was built using domain-neutral concepts to capture the essentials of SS in general, experts often want to understand the target world from domain-specific viewpoints.1 Even experts in the same domain will often have different interests. Therefore, it is desirable to structure knowledge not only from the general perspective, but also from multiple domain-specific perspectives so that experts from multiple domains of SS can easily understand the structured concepts. At Layer 2, we structure SS knowledge from multiple perspectives through divergent exploration of the SS ontology. The SS ontology described in “Development of the sustainability science ontology” systematizes domain-neutral concepts and relationships at the primitive level, and knowledge viewed from a domain-specific viewpoint can be represented by combining Interleukin-2 receptor those generalized concepts and relationships. Viewpoint-independent knowledge can also

be generated from SS ontology due to the machine-readable format of the ontology. Based on this observation, we developed a conceptual map generation tool for exploring an ontology. The tool extracts concepts from the SS ontology and visualizes them as a user-friendly conceptual map that is drawn based on the viewpoints specified by the users. By bridging the gap between ontologies and domain experts, the tool realizes the functional specification for exploration at Layer 2. 2. Conceptual map generation from ontologies Figure 4 shows how the conceptual map generation tool extracts concepts from an ontology and visualizes them in a user-friendly format depending on the viewpoints in which the user is interested. We define a viewpoint as the combination of a focal point and an aspect.

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