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This paper presents a novel methodology for deriving Conceptual Data Models in the scope of Model-based Systems Engineering. Based on an assessment of currently employed methodologies, substantial limitations of the state of the art are identified. Consequently, a new methodology, overcoming present shortcomings, is elaborated, containing detailed and prescriptive guidelines for deriving conceptual...
Programming multi-cores based Digital Signal Processors (DSP) becomes increasingly complex. This complexity is related to the rapid evaluation of Telecommunication and multimedia systems accompanied by a rapid increase of user requirements in terms of latency, power computation, consumption, etc. Workflow showed to be a successful approach for programming the applications based on NoC-DSP platforms...
The engineering of complex systems is more and more supported through computer-based models that rely on a comprehensive specification of their underlying data. This paper reflects on extensive industrial experience with a sophisticated application of conceptual data modeling, addressing requirements as they arise in the context of space systems engineering. For this purpose identified needs for conceptual...
The conceptual design is a decisive phase where the simulation teams would like to quickly pre-validate spatial architectures from the physical architecture proposed by the system architects. In order to support them to efficiently achieve this task while meeting various industrial requirements, three approaches were proposed and compared, and finally the last and innovative approach called SAMOS...
This paper presents an application of mobile scanning systems in the urban area of Geneva done by HKD Géomatique SA. In order to facilitate the maintenance of the public transport network, a full three dimensional modelization of the aerial objects was created with a precision of 20 centimetres. Numerous quality controls were performed to assess the required precision. In the end, 38 517 point objects...
Virtual organisations and product modelling represents domains with significant developments since mid 1990's. Various techniques developed under the scope of Mechanical Engineering Systems leads to the need of an integrated multi-view model concept. The paperwork presents the findings of a study for a PDM application proposed to be used for virtual organisations. Models of product, organisation and...
Big data technology is a new technology that aims to efficiently obtain value from very big volumes of a wide variety of data, by enabling high velocity capture, process, store, discovery and/or analysis, while ensuring their veracity by an automatic quality control in order to obtain a big value and make decision. Big Data is described by what is often represented as a multi-V model. In multi-V model,...
Model-based analysis and validation using simulation is a helpful tool in the engineering of complex systems. This paper presents a tool chain for the model-based architectural design of avionic fiber-optic networks. A recently proposed framework for simulation-based domain-specific tools is the basis for the development. It supports a model-based design workflow and offers a new 3D graphical user...
The design and development of aerospace product is a collaborative multi-discipline project. The integrated and consistent information modeling of all the information, models, documents and other product data generated during design and development is critical to success. An integrated information model, defined as EDPS (Engineering Digital Prototyping for Satellite) is proposed. Aiming at modeling...
It is becoming increasingly important to be able to query and exchange digital geoscientific information between data providers and users. Efficient data interchange over the Web requires standardizing data exchange formats and describing the geometric and semantic representation of 3D spatial objects in an underground coal mine. A spatial data model is presented to integrate subsurface features in...
There has been some recent change in focus in R&D from the concept of managing product lifecycle data to identifying and representing crucial data and using it for simulation to study dynamic process behavior and characteristics. One of the relatively new concepts that has evolved to address this change is Simulation Lifecycle Management (SLM) concept, which can be considered as the next version...
Model-driven development (MDD) is methodology of software construction emerging recently to counter the drawbacks of classic approaches. Apart from the well-known UML, SEAM is another MDD approach increasingly attracting attention due to its capability of regarding the whole system as a single view, thus enabling consistency maintaining during the design development. Especially, the final diagram...
This paper discusses the necessity and main methods of developing the three-dimensional visual and interactive system. Then the method of combining OpenGL and 3DS MAX is chosen to build the system. System structure, data transmission and interaction were presented with UML. The realization of dynamic model, viewpoint control, real-time display and vanish and other techniques are studied to ensure...
Model driven development (MDD) is on the rise in software engineering and no more so than in the realm of realtime and embedded systems. Being able to leverage the code generation and validation techniques made available through MDD is worth exploring, and is a large area of focus in academic and industrial research. However given the iterative nature of MDD, the evolution of models causes test case...
Supporting different stakeholder viewpoints across the product lifecycle requires semantic richness to represent product-related information and enable multiview engineering simulations. This paper proposes a multilevel product modeling framework enabling stakeholders to define product models and relate them to physical or simulated instances. The framework is defined within the Model-Driven Architecture...
This paper investigates the development of simulation in relation to Business Process Modeling (BPM). Comparing the way discrete event simulation is used alongside BPM software as opposed to the more traditional use of simulation as a stand-alone technology more rooted within the Industrial Engineering and Operational (Operations) Research disciplines. The paper will compare the way simulation is...
The Core Manufacturing Simulation Data (CMSD) data interface standard created by NIST was developed to facilitate the exchange of manufacturing data between disparate manufacturing software applications including process planning systems and discrete event simulation tools. An Applications Programming Interface (API) was created for abstracting away the implementation details of reading and writing...
This paper presents a method toward building semantic enriched product model. It can be applied to different stages throughout product lifecycle and mainly comprised of two steps: semantics extracting and semantics enhancing. Semantics extracting is performed based on fully utilizing preexisting product data models and explicates implicit characteristics and the meanings behind modeling elements....
The paper according to the actual situation of tunnels establishes six models, line tunnel, curve tunnel, link tunnel, vertical tunnel, trigeminal tunnel and binary tunnel based on tunnel midline, designs a general data structure for different section, and the corresponding algorithm of the acquisition for cross-section data of six kinds of model based on the section method. Finally, author implements...
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