Conceptual structures are studied in many different disciplines and represented in a variety of forms including natural language, formal logic, and graphical or spatial representations. This article analyzes the common foundations of such representations across all disciplines, and the relationships between the different forms of representation. Representations of the logical relations in conce...

User-database interaction can be classified into various abstraction levels. The two higher levels are the conceptual level and the logical level. On the conceptual level, the user talks of things in his world, for example, in terms of entities and relationships. On the logical level, the user talks of things in the database system, for example, in terms of relations and join operations. The us...

We introduce a conceptual history of knowledge expansion in the entrepreneurship field based on a logical mechanism of conjecture and refutation. Our undertaking interprets and explains the emergence, rise, re-emergence, and decline of key problem situations and theories through prehistoric, economic, and multidisciplinary movements in entrepreneurial thought.

We present a systematic evaluation of different modeling techniques for the design of Geographic Information Systems as we experienced them through theoretical research and real world applications. A set of exemplary problems for spatial systems on which the suitability of models can be tested is discussed. We analyze the use of a specific database design methodology including the phases of con...

The article provides a lexical interpretation of the legal concepts "justification armed aggression", "recognition aggression as legitimate" and "denial an example semantic-textual study media message using linguistic terms is given. proposed model practical application in solving tasks examination speech determined by stages research controversial texts: 1) terminexemes means semantic analysis...

XTT is a hybrid design method for rulebased expert systems, combining decision trees and tables. The XTT method provides means for logical formulation of a hierarchical rulebase with explicit inference control. It also has a welldefined visual representation, which is useful in the design process. The paper presents new tools for the conceptual and logical design. The first tool is based is bas...