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Your search keyword '"Di Battista, Giuseppe"' showing total 3 results
Start Over Author "Di Battista, Giuseppe" Topic software engineering
3 results on '"Di Battista, Giuseppe"'

2. Parametric Graph Drawing.

Author

Bertolazzi, Paola, Di Battista, Giuseppe, and Liotta, Giuseppe

Subjects
*GRAPH theory, *ALGORITHMS, *AUTOMATION, *SOFTWARE engineering, *PROGRAMMING languages, *ELECTRONIC data processing
Abstract

A diagram is a drawing on the plane that represents a graph-like structure, where nodes are represented by symbols and edges are represented by curves connecting pairs of symbols. An automatic layout facility is a tool that receives as input a graph-like structure and is able to produce a diagram that nicely represents such a structure. Many systems use diagrams in the interaction with the users; thus, automatic layout facilities and algorithms for graphs layout have been extensively studied in the last years. We present a new approach in designing an automatic layout facility. Our approach is based on a modular management of a large collection of algorithms and on a strategy that, given the requirements of an application, selects a suitable algorithm for such requirements. The proposed approach has been used for designing the automatic layout facility of Diagram Server, a network server that offers to its clients several facilities for managing diagrams. [ABSTRACT FROM AUTHOR]

Published
1995
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3. Definition Libraries for Conceptual Modelling

Author

Hannu Kangassalo, G. Di Battista, Roberto Tamassia, Carlo Batini, DI BATTISTA, Giuseppe, H., Kangassalo, R., Tamassia, Kangassalo, H, and Tamassia, R.

Subjects
Information Systems and Management, business.industry, Computer science, Process (engineering), Conceptual model (computer science), Data dictionary, Conceptual schema, Conceptual framework, Information system, Artificial intelligence, Abstraction, User interface, business, Software engineering
Abstract

Conceptual modelling is a fundamental phase in the design of information systems in which knowledge about the Universe of Discourse (UoD) is collected and represented in a conceptual schema. Conceptual modelling has been experienced to be a difficult and time consuming process. The reason for difficulties is in the abstraction and organization of large amounts of knowledge. In order to support the modelling process computerized tools have been developed for constructing a conceptual schema. A conceptual schema can also be stored for later use. This opens a possibility to develop a library of conceptual schemata in which partial or complete conceptual schemata are stored. The schemata in the library are either factually empty patterns of structures, or predefined, meaningful conceptual schemata. In this work the idea of concept definition libraries is introduced, the units of knowledge in a library are described, and the creation and maintenance of the library is discussed together with the system required to support the concept definition library.

Published
1989

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