Representation of Heterogeneous Objects in ISO 10303 (STEP)

2000 ◽  
Author(s):  
Lalit Patil ◽  
Debasish Dutta ◽  
A. D. Bhatt ◽  
K. Jurrens ◽  
K. Lyons ◽  
...  
Keyword(s):  
Solid Modeling ◽  
Layered Manufacturing ◽  
Information Modeling ◽  
Current Application ◽  
Modeling Methodology ◽  
Heterogeneous Objects ◽  
Information Models ◽  
Recent Developments ◽  
Iso 10303 ◽  
Solid Modeler

Abstract Solid modeling of objects forms an important task in design and manufacturing. Recent developments in the field of layered manufacturing have shown potential for the physical realization of heterogeneous (multi-material) objects. Thus, there is a need to represent material information as an integral part of the CAD model data. Information models for the representation of product data are being developed as an international standard called STEP (ISO 10303). However, the current application protocols focus on the representation of homogeneous objects only. This paper proposes an information model to represent heterogeneous objects using the information modeling methodology developed for ISO 10303. This will help in providing a uniform base in the development of heterogeneous solid modeling systems. It will also equip the solid modeler with the ability to integrate with other applications and process planning in the domain of layered manufacturing.

scholarly journals Information modeling of processes of reflexive management of herd behavior at enterprises

2019 ◽  
Keyword(s):  
System Analysis ◽  
Information Model ◽  
Information Modeling ◽  
Practical Implementation ◽  
Herd Behavior ◽  
Conceptual Information ◽  
Scientific Methods ◽  
Modeling Methodology ◽  
Information Models ◽  
General Scientific

The relevance of the practical implementation of the concept of modeling processes of reflexive management of herd behavior at enterprises, which is reduced to the construction of a conceptual information model, is substantiated. The subject of this research is the toolkit of information modeling of the processes of reflexive management of herd behavior at enterprises. The goal of the article is information modeling of the processes of reflexive management of herd behavior at enterprises. Objective: the construction of an information model of the mechanisms of reflexive management of herd behavior in enterprises in the context of the interrelated functions performed by the system in question and the relationship between data, where, among others, information communications are reflected. General scientific methods are used: system analysis – to determine the features of the mechanism of reflexive management of herd behavior at enterprises, structural (functional) analysis – to identify the main functions of the modeling system of processes of reflexive management of herd behavior at enterprises, information modeling methodology SADT (IDEF0 notation) – to develop information models of a system for modeling the processes of reflexive management of herd behavior at enterprises. The results are obtained: an information IDEF0 model of a system for modeling the processes of reflexive management of herd behavior based on the SADT methodology is developed, which allows you to get a holistic picture of the corresponding processes at enterprises, the basic system concepts of which form the basis of the future information system. Conclusions: formalization, within the framework of the information model of the basic functions of the mechanism of modeling the processes of reflexive management of herd behavior at the enterprise, allows us to describe the basic information connections in a logical, convenient and consistent form, present implementation mechanisms, a set of mathematical models and approaches of the corresponding system.

An Information Modeling Methodology for Sustainability Standards

2011 ◽  
Author(s):  
Anantha Narayanan ◽  
Jae Hyun Lee ◽  
Paul Witherell ◽  
Prabir Sarkar ◽  
Sudarsan Rachuri
Keyword(s):  
Enterprise Architecture ◽  
Electronic Equipment ◽  
Information Modeling ◽  
Hazardous Substances ◽  
Clear Understanding ◽  
Modeling Methodology ◽  
Information Models ◽  
Computer Aided ◽  
Standards And Regulations ◽  
Sustainability Standards

Standards and regulations are developed and introduced in the market to meet the needs of specific domains. As standards are usually developed by experts within a particular domain, the modeling requirements necessary to represent the information associated with these standards are often not well understood. The lack of clear understanding of information requirements creates an environment where information models can become difficult to produce from standards, and the criteria for complying with these standards may be obscure. The variety of challenges encountered in codifying standards using information models necessitates a carefully devised methodology that takes all areas of the whole enterprise into consideration. This paper presents a methodology for the development of information models to complement and support standards based on the Zachman framework for enterprise architecture. In this paper, we will discuss some of the challenges encountered in modeling information for standards and regulations related to sustainability, and subsequently describe how our approach can be used to address these challenges. We will illustrate our approach by developing an example information model to support RoHS (Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment). This work could lead to the development of software tools and environments for computer aided standards development. Finally, we discuss the advantages and drawbacks of our methodology.

scholarly journals Data Fusion for Adaptive Control in Manufacturing: Impact on Engineering Information Models

1993 ◽  
Author(s):  
Olin H. Bray
Keyword(s):  
Adaptive Control ◽  
Data Fusion ◽  
Machine Tool ◽  
Information Modeling ◽  
Multiple Sensors ◽  
Modeling Methodology ◽  
Information Models ◽  
Design And Manufacturing ◽  
The Difference ◽  
The Impact

Abstract This paper addresses the impact of data fusion on engineering and manufacturing information systems. Data fusion is the integration and analysis of data from multiple sensors to develop a more accurate understanding of a situation and determine how to respond to it. (Sensor fusion, a related term, has a somewhat different, more implementation oriented focus. The difference between these two concepts is addressed specifically in Section 1.) Although data fusion can be applied in many situations, this paper focuses on its application to manufacturing and how it changes some of the more traditional, less adaptive information models that support the design and manufacturing functions. Data fusion requires changes, primarily extensions, to these traditional information models. Engineering models normally address geometry, features, and performance characteristics of a part, while manufacturing models address machine tool characteristics and how they interact with the workpiece and operations scheduling. For data fusion and adaptive control, these models must include the dynamic behavior and interactions between the workpiece and the machine tool. In addition, these models must specify how these dynamic behaviors can be seen and interpreted by various types of sensors (e.g. temperature, pressure, and vibration). On a broader level it must also consider how the machine tools and robots interact within a work cell or production line. The paper consists of four parts. The first section explains what data fusion is and its impact on manufacturing. The second section describes what an information system architecture is and explains the natural language-based information modeling methodology used by this research project. The third section identifies the major design and manufacturing functions, reviews the information models required to support them, and then shows how these models must be extended to support data fusion. The fourth section discusses the future directions of this work.

scholarly journals Semantic 3D City Modeling and BIM

2021 ◽  
pp. 609-636
Author(s):  
Thomas H. Kolbe ◽  
Andreas Donaubauer
Keyword(s):  
Smart Cities ◽  
Three Dimensional ◽  
3D Models ◽  
International Standards ◽  
Information Modeling ◽  
Information Models ◽  
City Modeling ◽  
Building Information ◽  
Recent Developments ◽  
Planning And Construction

AbstractSemantic 3D city modeling and building information modeling (BIM) are methods for modeling, creating, and analyzing three-dimensional representations of physical objects of the environment. Digital modeling of the built environment has been approached from at least four different domains: computer graphics and gaming, planning and construction, urban simulation, and geomatics. This chapter introduces the similarities and differences of 3D models from these disciplines with regard to aspects like scale, level of detail, representation of spatial and semantic characteristics, and appearance. Exemplified by the international standards CityGML and Industry Foundation Classes (IFC), information models from semantic 3D city modeling and BIM and their corresponding modeling approaches are explored, and the relationships between them are discussed. Based on use cases from infrastructure planning, approaches for integrating information from semantic 3D city modeling and BIM, such as semantic transformation between CityGML and IFC, are described. Furthermore, the role of semantic 3D city modeling and BIM for recent developments in urban informatics, such as smart cities and digital twins, is investigated and illustrated by real-world examples.

Life Cycle of Construction Objects at Information Simulation of Buildings and Structures

2019 ◽  
pp. 65-72 ◽  
Keyword(s):  
Life Cycle ◽  
Construction Projects ◽  
Life Cycle Management ◽  
Information Modeling ◽  
Sources Of Information ◽  
Logical Scheme ◽  
Modeling Technology ◽  
Information Models ◽  
Building Information ◽  
The Russian Federation

The variants of the division of the life cycle of a construction object at the stages adopted in the territory of the Russian Federation, as well as in other countries are considered. Particular attention is paid to the exemplary work plan – "RIBA plan of work", used in England. A feature of this document is its applicability in the information modeling of construction projects (Building information Modeling – BIM). The article presents a structural and logical scheme of the life cycle of a building object and a list of works that are performed using information modeling technology at various stages of the life cycle of the building. The place of information models in the process of determining the service life of the building is shown. On the basis of the considered sources of information, promising directions for the development of the life cycle management system of the construction object (Life Cycle Management) and the development of the regulatory framework in order to improve the use of information modeling in construction are given.

An Investigation of Vector and Parallel Processing Applied to Solid Modeling

1996 ◽  
Author(s):  
Navin Pai ◽  
Mark Henderson
Keyword(s):  
Data Structure ◽  
Parallel Processing ◽  
Solid Modeling ◽  
Boundary Representation ◽  
Solid Modeler ◽  
Linked Lists

Abstract Solid modeling is a very useful industrial tool in the manufacture and design of industrial parts and assemblies. As a tool in the industrial workplace it has to be able to respond quickly to changes in design. To do this, the intersection algorithms between the solids have to be speeded up. Optimizations such as vector and parallel processing traditionally supported by supercomputers have the potential to solve this problem. A solid modeler was developed based on the boundary representation approach using a half-edge data structure. Those parts of the solid modeler code that could be vectorized were identified. A method was tested which allows loops involving linked lists to vectorize. It was also shown that this solid modeler has an inherent parallelism that can be exploited. Results are presented for vectorization and parallelization. The practical limits to both vectorization and parallelization are highlighted. Improvements to the geometric intersections algorithms are suggested to take advantage of vector and parallel processing. Results of the speedups possible using these algorithms are presented.

scholarly journals Development of the structure and composition of a building information classifier towards the application of BIM technologies

Vestnik MGSU ◽  
2020 ◽  
pp. 867-906 ◽  
Author(s):  
Vladimir A. Volkodav ◽  
Ivan A. Volkodav
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Life Cycles ◽  
Classification Systems ◽  
Information Modeling ◽  
Information Classification ◽  
Technical Requirements ◽  
Information Models ◽  
Building Information ◽  
The One

Abstract Introduction. Various building information classification systems are used internationally; their critical analysis makes it possible to highlight basic requirements applicable to the Russian classifier and substantiate its structure and composition. Materials and methods. Modern international building information classification systems, such as OmniClass (USA), Uniclass 2015 (UK), CCS (Denmark), and CoClass (Sweden), are considered in the article. Their structure, composition, methodological fundamentals are analyzed. In addition to international classification systems, Russian construction information classifiers are analyzed. Results. The structure of a building information classifier has been developed and tailored to the needs of BIM (building information modeling) and national regulatory and technical requirements. The classifier’s structure complies with the one recommended by ISO 12006-2:2015. Its composition has regard to the requirements that apply to the aggregation and unification of Russian classifiers, and it also benefits from the classifiers developed for and used by the construction industry. The proposed building information classifier has four basic categories and 21 basic classes. Conclusions. The proposed structure and composition of a building information classifier represent a unified and universal tool for communicating building information or presenting it in the standardized format in the consolidated information space designated for information models needed to manage life cycles of major construction projects.

scholarly journals FIELD OF TASKS OF THE CONSTRUCTION OBJECT

2020 ◽  
pp. 78-83
Author(s):  
Elena Gorda
Keyword(s):  
Life Cycle ◽  
Information Technologies ◽  
Technical Condition ◽  
Point Of View ◽  
Information Modeling ◽  
Theoretical Point ◽  
Construction Design ◽  
Information Models ◽  
Merger Integration ◽  
Concept Classification

The generalization of the concept of the task in terms of information environments of construction [ISB] is performed. The approach to the presentation of such concepts as construction issues, construction problem, ontology, idea, concept, classification of problems, tasks, directions, objects included in the staging part of the tasks taking into account the specifics of the tasks solved within the developed information technologies in construction issues. The paper defines and investigates on the basis of methods of construction geodesy the actual tasks of construction, design, modeling, monitoring and their totality in the field of construction by means of information theory. An approach to the description of the technical condition of a construction object on the basis of information modeling in the management of the construction process and information modeling within the life cycle is proposed and described. Information modeling is a process, the results of each stage of which, ie information models of the building, differ greatly from each other depending on the stage of the life cycle of the object and the requirements for modeling in solving emerging problems. The construction object strongly depends on the stage of its existence: if during the design it is virtual, and during construction it gradually finds a real embodiment, then at a long stage of operation the building enters a period of stability and is no longer subject to significant changes. An information model is a variable object that depends on the range of tasks to be solved. Using the methods of construction geodesy in the field of construction, the field of problems, class of problems, the concept of the problem, the state of the problem, subtasks, chains of problems, problem solving and the result of solving the problem, the relationship between problems setting the transformation of aggregation, merger, integration. The urgency of the task from a theoretical point of view is determined by the expansion of the ontology of construction as a science, from an applied point of view is determined by the possibility of accurate formalization of regulatory information and documentation in construction.

scholarly journals MODELING IN STUDYING COMPUTER GRAPHICS IN THE FUNDAMENTALIZATION OF COMPUTER SCIENCE

2019 ◽  
Vol 16 (32) ◽  
pp. 755-767
Author(s):  
L. B. RAKHIMZHANOVA ◽  
S. N. ISSABAYEVA ◽  
M. A. ZHUMARTOV ◽  
K. T. NAZARBEKOVA ◽  
K. E. TURGANBAY
Keyword(s):  
Computer Graphics ◽  
Computer Science ◽  
Practical Knowledge ◽  
Probabilistic Method ◽  
Evaluation Criteria ◽  
Information Modeling ◽  
Information Models ◽  
Development Levels ◽  
Diagnostic Complex ◽  
Main Components

The aim of the study was to develop an effective method of teaching computer graphics using information models. The authors conducted a pedagogical experiment, which consisted of two stages: ascertaining and teaching. The experiment involved 30 students and teachers in computer science. At the ascertaining stage, the state of students' practical knowledge and skills in computer graphics was analyzed. The authors had the following tasks at the first stage: to develop and describe the components, evaluation criteria and development levels of the motivation for studying computer graphics; design a diagnostic complex aimed at studying the development of the main components of the motivation for studying computer graphics; to identify the features of the development of the main components and levels of motivation for studying computer graphics in traditional learning environments. The teaching stage allowed to check the effectiveness of the task system developed by the authors, as well as the author’s methodology of using information modeling in computer graphics. In order to test the accuracy of experimental learning, the authors used the method of comparing the level of mastering the educational material of students in the control and experimental classes and the probabilistic method. For this purpose, control tests were conducted, the results of which were subjected to qualitative analysis. The results of the pedagogical experiment indicated the effectiveness of the proposed method of using computer information modeling in teaching computer graphics. Also, the authors developed a set of teaching and applied research tasks.

scholarly journals Information modeling in the context of highways property complex management

2021 ◽  
Vol 2142 (1) ◽  
pp. 012010
Author(s):  
V A Kostesha ◽  
D A Shapovalov ◽  
I K Kolesnikova ◽  
D A Biryukov ◽  
A A Chetverikova
Keyword(s):  
Life Cycle ◽  
Russian Federation ◽  
Legal Framework ◽  
Information Modeling ◽  
Information Models ◽  
The World ◽  
The Russian Federation ◽  
Capital Construction ◽  
Further Development ◽  
Property Complex

Abstract This article reveals the topic of the implementation of information modeling in the legislation of the Russian Federation. The world experience of creating information models of capital construction and the main features of control and standardization of BIM formation are considered. The analysis of the existing legal framework is carried out in relation to the responsibilities of organizations for the formation and maintenance of information models. The scheme of the life cycle of the model was developed. The article is related to the field of highways property complex management. The main features of the formation of BIM roads, their systematization, storage and regular updating were identified. As a result of the study, a geoportal of highways was developed for the modernization of the land and property complex management of highways. It serves as the basis for geoinformation support for information modeling, cadastral, urban planning, inventory and other works on highways. Conclusions and recommendations for the further development of this area in the territory of the Russian Federation are presented.

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