Deriving structurally based software measures
Journal of Systems and Software - An Oregon workshop on software metrics
Object-oriented metrics that predict maintainability
Journal of Systems and Software - Special issue on object-oriented software
Property-Based Software Engineering Measurement
IEEE Transactions on Software Engineering
Object-oriented metrics: measures of complexity
Object-oriented metrics: measures of complexity
A Unified Framework for Coupling Measurement in Object-Oriented Systems
IEEE Transactions on Software Engineering
A cohesion measure for object-oriented classes
Software—Practice & Experience
Software Measurement: A Necessary Scientific Basis
IEEE Transactions on Software Engineering
A Metrics Suite for Object Oriented Design
IEEE Transactions on Software Engineering
Towards a Framework for Software Measurement Validation
IEEE Transactions on Software Engineering
Methodologies, tools and languages for building ontologies: where is their meeting point?
Data & Knowledge Engineering
ε-connections of abstract description systems
Artificial Intelligence
Coupling Metrics for Ontology-Based Systems
IEEE Software
Web ontology segmentation: analysis, classification and use
Proceedings of the 15th international conference on World Wide Web
Evaluation Metrics for Ontology Complexity and Evolution Analysis
ICEBE '06 Proceedings of the IEEE International Conference on e-Business Engineering
A semiotic metrics suite for assessing the quality of ontologies
Data & Knowledge Engineering - Special issue: Natural language and database and information systems: NLDB 03
Journal of Software Maintenance and Evolution: Research and Practice
Reasoning and change management in modular ontologies
Data & Knowledge Engineering
Ontology module extraction for ontology reuse: an ontology engineering perspective
Proceedings of the sixteenth ACM conference on Conference on information and knowledge management
Formalizing the Role of Goals in the Development of Domain-Specific Ontological Frameworks
HICSS '08 Proceedings of the Proceedings of the 41st Annual Hawaii International Conference on System Sciences
Application controlled caching for web servers
Enterprise Information Systems
A modelling approach to service-oriented architecture
Enterprise Information Systems
Towards policy driven context aware differentiated services design and development
Enterprise Information Systems - Challenges and Solutions in Enterprise Computing - 11th International IEEE EDOC Conference (EDOC 2007)
An Interface-Based Ontology Modularization Framework for Knowledge Encapsulation
ISWC '08 Proceedings of the 7th International Conference on The Semantic Web
Semantic Modularity and Module Extraction in Description Logics
Proceedings of the 2008 conference on ECAI 2008: 18th European Conference on Artificial Intelligence
A semantic importing approach to knowledge reuse from multiple ontologies
AAAI'07 Proceedings of the 22nd national conference on Artificial intelligence - Volume 2
A logical framework for modularity of ontologies
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
Semantic oriented ontology cohesion metrics for ontology-based systems
Journal of Systems and Software
Task Oriented Evaluation of Module Extraction Techniques
ISWC '09 Proceedings of the 8th International Semantic Web Conference
Business information query expansion through semantic network
Enterprise Information Systems
Dynamic selection mechanism for quality of service aware web services
Enterprise Information Systems
Swoop: A Web Ontology Editing Browser
Web Semantics: Science, Services and Agents on the World Wide Web
Measuring design complexity of semantic web ontologies
Journal of Systems and Software
A service-based framework for pharmacogenomics data integration
Enterprise Information Systems
A knowledge encapsulation approach to ontology modularization
Knowledge and Information Systems
Stable cohesion metrics for evolving ontologies
Journal of Software Maintenance and Evolution: Research and Practice
A framework for handling inconsistency in changing ontologies
ISWC'05 Proceedings of the 4th international conference on The Semantic Web
Modular ontologies – a formal investigation of semantics and expressivity
ASWC'06 Proceedings of the First Asian conference on The Semantic Web
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In recent years, an increasing number of ontologies and semantic web applications have been developed and used. A conscious effort has been made to develop methods to modularize ontologies. These methods contribute to building a new ontology. However, few studies have focused on the evaluative methods for ontology modules. In this study, we propose novel metrics to measure ontology modularity. To evaluate the ontology modules, we introduce cohesion and coupling based on the theory of software metrics. A cohesion metric and two coupling metrics were used to measure cohesion and coupling for ontology modules. The proposed metrics provide more detailed support in considering the different types of relationships between classes in ontology modules. In addition, the new coupling metrics contribute to checking the consistency between the ontology modules and their original ontology. The proposed metrics were validated using well-known verification frameworks and empirical experiments to complement the previous investigations. The results of this study offer ontology engineers valuable criteria with which to evaluate ontology modules and help ontology users select qualifying ontology modules.