Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"conceptual modeling"”.
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Students' conceptual modeling of simple DC electric circuits during computer-based instruction
… 1994) provided data for the development of conceptual maps (Dykstra, Boyle, and Monarch, 1992) from which students' conceptual frameworks and mental models were inferred. The sequence and types of changes the models underwent were illustrated by the changes in the conceptual maps as the …
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Development of an Information Base Tool for IDT Research
… by previous studies. The tool includes conceptual modeling, guided search, experimental variables and relationships examination, note-taking, suggestion, file import, and review features. The tool was populated with relevant information to permit testing and formative evaluation by …
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Structural Basis For Poliovirus Cloverleaf-Mediated Regulation Of Genome Replication
… RNA. Additionally, we report binding studies and conceptual modeling to characterize the interaction between the cloverleaf RNA, 3CD and Poly-C Binding Protein 2.
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Scenario-Based Generation of Digital Library Services
… DL development,including requirements gathering, conceptual modeling, rapid prototyping, and code generation/reuse. With current systems, these activities are only partially supported, generally in an uncorrelated way that may lead to inconsistencies and incompleteness. Moreover, such existing …
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Applying the 5S Framework To Integrating Digital Libraries
… DL generation, including requirements gathering, conceptual modeling, rapid prototyping, and code generation. 5SSuite consists of 5SGraph, 5SGen, and SchemaMapper, which plays an important role during integration. SchemaMapper, a visual mapping tool, maps the schema of diverse DLs into a global …
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An Object Oriented Simulator for Conceptual Graphs
… of an object-oriented simulator for conceptual graphs. Conceptual graphs are a means of representing information and knowledge. In particular, they may be used to represent the behavior of mechanisms. Conceptual graph simulation provides the means for verifying that the conceptual …
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Understanding Streamflow Change at the Scale of a Major City: Chicago
… statistical framework is associated with conceptual modeling tools to understand how adaptive human responses to urbanization mitigate and sometimes even o ffset the e ffects of land-use change in a large urban area, such as the Greater Chicago area. Results of PCPS, along with an analysis …
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Modeling and Reasoning about Contextual Requirements: Goal-based Framework
… In this thesis, we propose a goal-oriented RE modeling and reasoning framework for systems operating in and reflecting varying contexts. To this end, we develop a conceptual modeling language, the \emph{contextual goal model}, that captures the relationship between context and requirements at …
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Discrete event system modeling using SysML and model transformation
… is to introduce a unified framework for modeling and simulating discrete event logistics systems (DELS) by using a formal language, the System Modeling Language (SysML), for conceptual modeling and a corresponding methodology for translating the conceptual model into a simulation model. …
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The Influence of AR Head-Mounted Displays on Spatial Perception and Worker Response in Construction Training
… EEG location matrices. Objective 1 develops a conceptual model that classifies AR-HMD and Human-Computer Interaction (HCI) risks and standardizes the domain language for evaluating these technologies, highlighting underexplored cognitive, sensory, and physical human-factor risks. Additionally, …
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Managing software requirements for small sized companies
… part of the thesis considers Business Process Modeling and how it helps in understanding any business in a better way and how conceptual model helps in extracting business requirements from any particular business scenario. The Object Oriented Technique is used for building the conceptual …
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Um catálogo de regras para validações estruturais de diagramas EER
Um diagrama EER para ser válido deve estar em conformidade com as regras sintáticas da sua linguagem de modelagem e não deve possuir construções que se contradizem estruturalmente. Considerando um diagrama EER sintaticamente correto, existem trabalhos que definem validações estruturais para os …
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THERMO-HYDRO-MECHANICAL NUMERICAL MODELLING TO ASSESS THE ROLE OF CLIMATIC FACTORS IN THE STABILITY OF ALPINE ROCK SLOPES
… of rock slopes, the definition of a geological conceptual model, and the development of numerical stress-strain analysis, this work is intended to be a valid reference for the analysis of rock slope evolution in response to climate inputs. Concerning the hydro-mechanical (HM) couplings, two case …
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A Framework for Extraction Plans and Heuristics in an Ontology-Based Data-Extraction System
<p>Extraction of information from semi-structured or unstructured documents, such as Web pages, is a useful yet complex task. Research has demonstrated that ontologies may be used to achieve a high degree of accuracy in data extraction while maintaining resiliency in the face of document changes. …
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Exploring middle school students' sensemaking of a gesture-augmented computer simulation depicting thermal conduction
… in this context. First, I found that the conceptual dimension revealed how students integrated knowledge into their explanatory model of thermal conduction. The representational understanding dimension, which shows how students converted the external representations of the simulation into …
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Investigating the process of process modeling and its relation to modeling quality : the role of structured serialization
… wrong. A better understanding of current process modeling practice will form the basis for the development of concrete guidelines that result in the construction of better process models in the future. The first study investigated how we can represent the approach of different modelers in a …
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Conceptual XML for Systems Analysis
… representation, there is a need for a simple conceptual model that works well with XML-based development. In this research we present a conceptual model for XML, called C-XML, which meets this new need of systems analysts who store their data using XML. We describe our implementation of an …
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Refining and Expanding the Feature Stamping Process
… implemented a tool in the Surface-water Modeling System (SMS) software package for integrating man-made geometric features into surveyed terrain data. He called this process feature stamping. While Christensen's feature stamping algorithms decrease the time and effort required to …
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