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Reducing Maintenance Complexity in User-Centric Web-Based 3D Geodata Portrayal

This paper presents an innovative approach to reducing maintenance complexity in user-centric web-based 3D geodata portrayal. The authors, Simon Thum and Michel Krämer, suggest shifting knowledge closer to data sources, enabling clients to require less knowledge while achieving better user demands fulfillment. Scenarios and portrayal requirements are systematically defined to address anticipated problems. The proposed solution emphasizes scalable problem-solving, reduced preprocessing needs, and adaptability to heterogeneous data. The approach promotes a more manageable and efficient user experience without heavy client reliance.

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Reducing Maintenance Complexity in User-Centric Web-Based 3D Geodata Portrayal

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  1. Reducing Maintenance Complexity of User-centric Web Portrayal Services An alternateapproachto web-based 3D GeodataPortrayal Authors: Simon Thum and Michel Krämer Simon Thum Fraunhofer-InstitutfürGraphischeDatenverarbeitungIGDFraunhoferstraße 564283 DarmstadtTel +49 6151 155 – 581simon.thum@igd.fraunhofer.de www.igd.fraunhofer.de

  2. Simon Thum: Reducing Maintenance Complexity ... • Motivation • Our Approach • Whereitfits in • Whyit‘s different • Specificconstraints • Our Solution • Characteristics • Outlook • Comparison • Applicationopportunities

  3. MOTIVATION Simon Thum: Reducing Maintenance Complexity ...

  4. MOTIVATION Simon Thum: Reducing Maintenance Complexity ...

  5. Portrayalcomplexity Simon Thum: Reducing Maintenance Complexity ...

  6. User-centricportrayal • More a-priori knowledge in theportrayalservice • Lessclient-sidecontrol • Run-time Overhead • Requiresknowndatasource-wideidentifiers • Bettermatchesspecificuserdemands • Lessknowledge in theclient • Increasedabilitytoadapttoacquisitionidiosyncrases • Heterogenous, non-othogonalsourcedata • Does not depend on spatialorsemanticpartitioning (overlap) • Less/noneedforpreprocessing • Alwaysup-to-date

  7. Data flow Source Select Display Element G. Render & Display End-User Data Specialist Simon Thum: Reducing Maintenance Complexity ...

  8. Scenarios • A Scenario isthecentralunit in ourapproach • Maptoactualusecases • More technically: Coincidingportrayalrequirements • Definedas a setofportrayalrulesandtheirparameters • Constraintheanticipatedportrayalproblemswemightneedtosolve • Enablethe IR approach Simon Thum: Reducing Maintenance Complexity ...

  9. Decomposition Portrayal Scenario Requirements Information Items Information Item Representations Simon Thum: Reducing Maintenance Complexity ...

  10. Intermediate Representation Explosion ofinterdependencies

  11. Intermediate Representation The IR iscanonicalinformationrequiredtosolveportrayalproblems

  12. Data heterogenityor „Fitness forPortrayal“ Frominformation item representationsto an IR item Simon Thum: Reducing Maintenance Complexity ...

  13. Summary • Knowledgeaboutdatasourcesisshiftedclosertothem • Client needslessknowledge • Scalablewayto express andsolveportrayalproblems • Achievedbyseparatingtheconcernofheterogenity • Lessreliance on preprocessing • The approachhasbeentestedatthelocallevel • but shouldscalenicely • Doesn‘t fit well withclient-drivenapproaches Simon Thum: Reducing Maintenance Complexity ...

  14. Thanksforyourattention! May I answerquestions? Simon Thum Fraunhofer-InstitutfürGraphischeDatenverarbeitungIGDFraunhoferstraße 564283 DarmstadtTel +49 6151 155 – 581simon.thum@igd.fraunhofer.de www.igd.fraunhofer.de

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