Object-oriented interactive mechanism design and analysis

Cheng, Harry H.; Trang, T.

doi:10.1007/s00366-005-0008-4

Cited by 10 publications

(5 citation statements)

References 6 publications

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“…UML was used to diagrammatically visualize and document software modules during requirements analysis. UML provides three types of diagrams: behavior, interaction, and structure diagrams ([18] and [19]). The class diagram is one of the structure diagram types and was used to model the basic elements of the software system, their attributes, and relations.…”

Section: Methodsmentioning

confidence: 99%

Implementation of the CDC translational informatics platform - from genetic variants to the national Swedish Rheumatology Quality Register

et al. 2013

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BackgroundSequencing of the human genome and the subsequent analyses have produced immense volumes of data. The technological advances have opened new windows into genomics beyond the DNA sequence. In parallel, clinical practice generate large amounts of data. This represents an underused data source that has much greater potential in translational research than is currently realized. This research aims at implementing a translational medicine informatics platform to integrate clinical data (disease diagnosis, diseases activity and treatment) of Rheumatoid Arthritis (RA) patients from Karolinska University Hospital and their research database (biobanks, genotype variants and serology) at the Center for Molecular Medicine, Karolinska Institutet.MethodsRequirements engineering methods were utilized to identify user requirements. Unified Modeling Language and data modeling methods were used to model the universe of discourse and data sources. Oracle11g were used as the database management system, and the clinical development center (CDC) was used as the application interface. Patient data were anonymized, and we employed authorization and security methods to protect the system.ResultsWe developed a user requirement matrix, which provided a framework for evaluating three translation informatics systems. The implementation of the CDC successfully integrated biological research database (15172 DNA, serum and synovial samples, 1436 cell samples and 65 SNPs per patient) and clinical database (5652 clinical visit) for the cohort of 379 patients presents three profiles. Basic functionalities provided by the translational medicine platform are research data management, development of bioinformatics workflow and analysis, sub-cohort selection, and re-use of clinical data in research settings. Finally, the system allowed researchers to extract subsets of attributes from cohorts according to specific biological, clinical, or statistical features.ConclusionsResearch and clinical database integration is a real challenge and a road-block in translational research. Through this research we addressed the challenges and demonstrated the usefulness of CDC. We adhered to ethical regulations pertaining to patient data, and we determined that the existing software solutions cannot meet the translational research needs at hand. We used RA as a test case since we have ample data on active and longitudinal cohort.

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Section: Methodsmentioning

confidence: 99%

Implementation of the CDC translational informatics platform - from genetic variants to the national Swedish Rheumatology Quality Register

et al. 2013

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“…Object design used in computer science consists in operating the objects which are the data together with the methods that is the functions describing the activities performed on the object [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. The object is the independent variable which stores the data, follows the instructions and cooperates with other objects by exchanging messages in order to realize all the functions of the modelled system.…”

Section: Theoretical Basis Of Object Analysismentioning

confidence: 99%

Process of Object-Oriented Design of Gear Size Ranges. Part I: Analysis

Czader,

Drewniak,

Zhauyt

et al. 2024

Preprint

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Design process can be divided into stages of analysis and synthesis. This paper presents the application of the object-oriented technique to the analysis as well as theoretical considerations concerning to design of gear size ranges. This analysis consists in decomposition of the designed artefact (a gear) according to the rule “from general to details view”. The basics of the object-oriented analysis were formulated. Furthermore, design phases and the objects related to theses phases were discussed. The following models have been considered: hierarchical model, entity-relationship model, data-flow model and object model. Analysis is additionally connected with interactions between particular design phases.

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“…Even though they provide powerful kinematic synthesis solvers, they do not have interface for constructing mechanisms and simulating their motion. Commercial linkage design tools include WATT by Heron Technologies Inc., SyMech by symech.com and Ch Mechanism Toolkit by SoftIntegration Inc. (Cheng and Trang 2006). These tools mainly focus on the analysis and synthesis of planar 4-bar , 6-bar or 8-bars.…”

Section: Introductionmentioning

confidence: 99%

VRMDS: an intuitive virtual environment for supporting the conceptual design of mechanisms

Alvarez

2009

Virtual Reality

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This paper presents Virtual Reality Mechanism Design Studio (VRMDS), an intuitive virtual environment for supporting the interactive design and simulation of mechanisms. The studio allows users to build spatial or planar mechanisms through intuitive operations and subsequently simulate their dynamic motion. Written in Python script language, VRMDS provides 3D stereoscopic immersive visualization, haptic enabled interaction, head and hand tracking and a user-friendly graphical user interface. A data model for organizing the data structure of links and commonly used mechanical joints is designed and implemented upon the basis of the Vizard Virtual Reality (VR) library. Within the virtual environment, the user can create links and assemble them into a mechanism by defining joints between links. Simultaneously, a corresponding MATLAB's SimMechanics model is automatically created at run time. The dynamics simulation of mechanisms is enabled by interfacing with the dynamics solver built-in SimMechanics. The user may choose to run the system in an immersive VR environment or a desktop environment. The result is a versatile mechanism design tool that is beneficial to the early stages of the design process. A case study of a spatial mechanism is provided to demonstrate the usefulness of this system in mechanism design.

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Object-oriented interactive mechanism design and analysis

Cited by 10 publications

References 6 publications

Implementation of the CDC translational informatics platform - from genetic variants to the national Swedish Rheumatology Quality Register

Implementation of the CDC translational informatics platform - from genetic variants to the national Swedish Rheumatology Quality Register

Process of Object-Oriented Design of Gear Size Ranges. Part I: Analysis

VRMDS: an intuitive virtual environment for supporting the conceptual design of mechanisms

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