Conceptual Modeling - ER 2002 3540442774, 9783540442776

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Conceptual Modeling - ER 2002
 3540442774, 9783540442776

Table of contents :
Conceptual Modeling . ER 2002
Foreword
Preface
ER 2002 Conference Organization
Table of Contents
Conceptual Modelling and Ontology: Possibilities and Pitfalls
An Ontology for m-Business Models
Introduction
Research in m-Business
Applications, Issues and Actors in m-Business
Ontology for m-Business Models
Conclusion
References
Modeling Dynamics of Business Processes: Key for Building Next Generation of Business Information Systems
Ontology-Driven Conceptual Modelling
Advanced OO Modelling: Metamodels and Notations for the New Millennium
References
Ontology-Driven Conceptual Modelling: Advanced Concepts
Workflow Management in Electronic Commerce
Introduction
Intra-organizational Workflow Management
Cross-Organizational Workflow Management
Workflow Management in Dynamic Service Outsourcing
Do We Need an Ontology of Ontologies?
Development of a Conceptual Data Model for Digital Spatio-Temporal Geographical Information, with Application to Several Themes and GIS
Using Semantic Rules Database to Dynamically Set up the ICSpace Virtual Building
Introduction
The Proposal
On the Transformation of Object Oriented Conceptual Models to Logical Theories: From EROOS to ID-Logic
References
Component Construction of Database Schemes
Introduction
Component Construction Based on Dimensionality
Star and Snowflake Sub-schemata as Building Blocks
Composition of Sub-schemata
General Composition Constructors
Main Composition Operations
Deriving Other Operations for Component Construction
Concluding
References
Multirelational Semantics for Extended Entity-Relationship Schemata With Applications
Introduction
The Categorical View of Binary Relations
Straight To Multirelations
Composition
Schemata and Instances
Instances
Checking Subtyping and Ownership
The Algorithm
Running Time
References
A Meta-model for e-Contract Template Variable Dependencies Facilitating e-Negotiation
Introduction
Motivating Example
A Meta-Model for e-Contract Templates
Template Variable Relations and e-Negotiation Plan
Indivisible Components of Variables
Partial Ordering of Variables
Derivation of Negotiation Plans
A Model for e-Negotiation of Contracts
e-Negotiation Conceptual Model
e-Negotiation Process Model
Facilitating the e-Negotiating Process with E-ADOME WFMS
Related Work
Conclusion and Future Work
References
On the General Ontological Foundations of Conceptual Modeling
Introduction
Basic Elements of the Upper Level Ontology of GOL
Urelements and Sets
Individuals
Universals
Relations and Relational Universals
Basic Ontological Relations
Ontological Foundations of the UML
Classes and Objects
DataType
Powertype
Abstract Class
Association
The Bunge-Wand-Weber (BWW) Ontology
Things and Substances
Properties and Moments
Natural Kinds and Universals
Other Related Work
Conclusions
References
Finding and Characterizing Changes in Ontologies
Ontologies as Conceptual Models on the Web
The Update Relation between Ontologies
General Description of OntoView
Comparing Ontologies
Types of Change
Detecting Changes
Rules for Changes
Specifying the Conceptual Implication of Changes
Conclusion
References
Superimposed Schematics: Introducing E-R Structure for In-Situ Information Selections
Introduction
A Data Model for Superimposed Schematics
The Basic Schematics Data Model
Marks and Constraints
Schematic Instances
Schematic-Based Addressing
Opaque versus Transparent Marks
Addressability Constraints
The Schematic Addressing Language
Related Work
Summary and Future Work
References
Web Extensions to UML: Using the MVC Triad
Introduction
Scope,Objectives and Approach
Extension Model Structure
The MVC Concept
Extended Conceptual Model
Information Architecture
Functional Architecture
UML Diagram Extensions
Using the Extended UML Diagrams
Requirements Engineering and Conceptual Design
Architectural Design
Potential Improvements
Summary
References
Wiccap Data Model: Mapping Physical Websites to Logical Views
Introduction
Motivation
The WICCAP Approach
Paper Overview
Wiccap Data Model
WDM Schema and Mapping Rules
WDM Elements
Locator
Link
Form
Mapping
Item
Record
Region
Complete WDM Schema
An Example on BBC Online News
WDM Creation Process
Basic Logical Structure Construction
Content Extraction Definition
Mapping Rule Generation
Testing and Finalization
Implementation
Assistant Tools
Graphical User Interface
Related Work
Conclusion
References
Representing and Querying Semistructured Web Data Using Nested Tables with Structural Variants
Introduction
Basic Concepts and Notation
Expressiveness of Nested Tables for Representing Semistructured Web Data
Query Operations for Nested Tables
QSByE
Conclusions and Directions for Future Work
References
On the Transformation of Object-Oriented Conceptual Models to Logical Theories
Introduction
Object-Oriented Conceptual Modeling in EROOS
Logical Theories
The Language and Its Semantics
Computing Models Using the Asystem
Extensions of ID-Logic
Transformation of EROOS Conceptual Models to ID-Logic Theories
Transformation of Classes and Domains
Transformation of Relations and Attributes
Transformation of Generalization/Specialization
Partitioning Constraints.
Strengthening.
Transforming Explicit Constraints
Transforming EROOS Queries
Solving Tasks
General Notes on Tasks
Database Querying
Scheduling
Some Remarks
Conclusion and Future Work
References
Reasoning with Goal Models
Introduction
An Example
Qualitative Reasoning with Goal Models
Axiomatization of goal relationships
The label propagation algorithm
Termination and complexity
Soundness and completeness
Quantitative Reasoning with Goal Models
An extended framework
Axiomatization
The label propagation algorithm
Soundness and completeness
Termination
Experimental Results
Conclusions
References
Registering Scientific Information Sources for Semantic Mediation
Introduction
Modeling Source Semantics
Conceptual Model of the Source
Mediator Information from the Source's Viewpoint
Context Specification Language CSL
Registration Process
Conclusion
References
Multidimensional Modeling with UML Package Diagrams
Introduction
Related Work
Object-Oriented Multidimensional Modeling
Package Design Guidelines for Multidimensional Modeling
Applying Package Design Guidelines: a Case Study
Definition of Package Stereotypes
Using Multidimensional Modeling in Rational Rose
Conclusions and Future Work
References
Comparative Evaluation of Large Data Model Representation Methods: The Analyst's Perspective
Introduction
The Problem of Complexity in Data Models
Levelled Data Models
Research Questions
The Method Evaluation Model
Adoption of IS Design Methods
A Theoretical Model for Evaluating IS Design Methods
Research Design
Research Method Selection
Identifying Methods for Comparison
Experimental Design
Independent Variable
Dependent Variables
Hypotheses
Research Question 1: Comparison Between Methods
Research Question 2. Adoption in Practice:
Validation of Causal Relationships. Finally, we posit a number of relationships between dependent variables, based on the causal relationships defined in the Method Evaluation Model.
Participants
Experimental Treatment
Materials
Experimental Task
Results and Discussion
Research Question 1: Comparison of Methods
Research Question 2: Adoption in Practice
Validation of Method Evaluation Model
Conclusion
Summary of Findings
Practical Significance
Theoretical Significance
Strengths and Limitations of the Research
Further Research
References
Extracting Conceptual Relationships from Specialized Documents
Introduction
Conceptual Model
System Implementation
Preprocessing
Segmentation
Merging
Interface
An Empirical Study
Accuracy Evaluation
Usability Evaluation
Discussion
Conclusions
References
A Transactional Model for Data Warehouse Maintenance
Introduction
Data Warehouse Environments
Motivating Example of the DW Maintenance Anomaly Problems
Contributions of this Work
DWMS_Transaction: Transactional Modeling of DW Maintenance
Transactions in a Data Warehouse Environment
A Transactional Model: DWMS_Transaction
DWMS_Transaction Scheduling
Conflicts between DWMS_Transactions
Serializability of DWMS_Transactions
Multiversion Concurrency Control Algorithm for DWMS_Transactions
Wrapper Materialization
Version Management
TxnWrap: A Multiversion Algorithm for DW Maintenance
Experimental Evaluation
Experimental Testbed and Setup
Data Update Processing
Schema Change Processing
Related Work
Conclusions
References
The Account Data Model
Introduction
The Account Data Model
Modelling Dimensions for Data Warehousing
Dimension Accounts
Modelling Dimension Hierarchies
Modelling Dimension Time
Modelling Dimension Transaction Components
Implementation of the ADM
ADM and A-priori Optimization:
Conclusion
References
A Semantic Model for Hypertext Data Caching
Introduction
Modeling Cached Hypertext Data
Physical Structure of Hypertext Data
Logical Documents: Logical Structure of Hypertext Data
Semantic Region: Semantic Structure of Hypertext Data
HyperDB, Benchmarking Hypertext Semantic Caching
HyperDB, A Virtual Hypertext Database
Generating Accesses to HyperDB
Semantic Caching for HyperDB
Size-Adjusted LRU-K (LRU-K-S)
Structure-Aware Caching (LRU-K-T)
Popular Path-Aware Caching (LRU-K-P)
Content-Sensitive Caching (LRU-K-C)
Experimental Evaluation
Conclusion and Future Work
References
Understanding and Simulating Narratives in the Context of Information Systems
Introduction
Logical Framework
Syntax
Semantics
Three-Level Conceptual Modelling
The Overall Architecture
Understanding Narratives
Plan Recognition
Construction of Libraries of Typical Plans
Simulating Narratives
Presenting Narratives
Generating Texts
Generating 3D Animations
Concluding Remarks
References
Global Schema Generation Using Formal Ontologies
Introduction
Related Work
Overview
Merging Ontologies
Global Schema Generation
Class Integration
Filling Classes with Attributes
Data Mapping
Conclusion
References
Automatically Extracting Ontologically Specified Data from HTML Tables of Unknown Structure
Introduction
Matching Problems
Matching Solutions---Our Contribution
Extraction Ontologies
Derivation of Source-to-Target Schema Mappings
Form Attribute-Value Pairs
Adjust Attribute-Value Pairs
Perform Extraction
Infer Mappings
Experimental Results and Discussion
Results
Discussion
Conclusion
On the Expressive Power of Data Integration Systems
Introduction
Framework for Data Integration
Comparing LAV and GAV without Constraints
Comparing LAV and GAV with Constraints
Discussion
References
Property-Based Semantic Reconciliation of Heterogeneous Information Sources
Introduction
Semantic Interoperability in Heterogeneous Systems
Semantic Interoperability in Databases
Semantic Interoperability in Semi-structured Sources
The Root Problem and a Candidate Resolution
Property Precedence as a Basis for Semantic Reconciliation
Foundations
Toward a Precedence Algebra
Using Precedence to Support Interoperability
Operational Similarity
A Precedence-Based Methodology for Supporting Interoperability
Queries in a Precedence-Based Environment
An Example
Implementation Issues
Conclusions and Further Research
References
Conceptual integration of multiple partial geometric models
Introduction
Preliminaries
Representations
Query rewriting
Geometric Functions
The Query rewriting process
Future Directions
References
Evaluating the Quality of Process Models: Empirical Testing of a Quality Framework
Introduction
The Importance of Conceptual Model Quality
Previous Research
Conceptual Model Quality Framework
Objectives of this Paper
Research Methodology
Validation of IS Design Methods
Research Design
Participants
Participants
Experimental Treatment
Experimental Tasks
Dependent Variables
Theoretical Model
Results and Discussion
Summary of Analyses
Reliability Analysis
Validity Analysis
Weighting of Quality Categories
Interaction Analysis
Task Accuracy
Likelihood of Adoption in Practice
Analysis of Causal Relationships
Conclusion
Summary of Findings
Theoretical Significance
Limitations and Further Research
References
Data Quality in Web Information Systems
Introduction
Definition of Data Quality Dimensions
Dynamics of Data Quality Dimensions
Temporal Dynamics of Expiration: Volatility.
Temporal Dynamics of Completeness: Completability.
Modeling Data Quality
WIS Design Methodology
A General Hyperbase Data Model for Data Quality
A Methodological Framework for Data Quality Management in WIS's
Definition Phase
Publishing Phase
Static Measurement.
Dynamic Measurement.
Monitoring.
Cleaning Phase
An Architecture
Related Work
Concluding Remarks
References
Conceptual Modeling Quality - From EER to UML Schemas Evaluation
Introduction
Related Literature
A Framework for Conceptual Quality Evaluation
The Specification Dimension
The Usage Dimension
The Implementation Dimension
Case Study: Hospital Management
Extending the Framework to UML Conceptual Schemas
Applying the Framework to UML Schemas
Taking into Account Specific Features of UML
Conclusion and Future Work
References
Conceptual Modeling for Customized XML Schemas
Introduction
XML Schema Designer Architecture and Modules
Algorithms for XML Schema Designer
Algorithms for Generating Conceptual Hierarchical View from EER Model
Generating XML Schema and Instance Documents from Conceptual Hierarchical View
Conclusion and Future Work
References
Figures
A Flexible Cost Model for Abstract Object-Oriented Database Schemas
Introduction
Cost Driven Design
Related Work
Outline of the Paper
Abstract Database Machine
Cost Evaluation
Space Cost Estimation
Time Cost Estimation
Cost Statements
Cost Functions
Aggregation Function
Conclusion
Example
Programs
Cost Parameters
Space Costs
Time Costs
Cost Estimation Summary
Designing Valid XML Views
Introduction
Preliminaries
ORA-SS Data Model
View Definition Language
Valid XML Views Design
Motivating Example
Transformation of XML into ORA-SS
Semantic Enrichment of ORA-SS
Validity of XML Views
Selection Operation
Projection Operation
Join Operation
Swap Operation
Design Rules for IDentifier Dependency Relationship
View Validation Algorithm
Related Work
Conclusions
References
Appendix: XML Document and XQuery in the Paper
Author Index

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