TY  - JOUR
T1  - Ontology-Based Saas Catalogue for Cloud Services Publication and Discovery
AU - Afify, Yasmine M. AU - Moawad, Ibrahim F. AU - Badr, Nagwa L. AU - Tolba, M. F. 
JO  - Asian Journal of Information Technology
VL  - 15
IS  - 23
SP  - 4900
EP  - 4915
PY  - 2016
DA  - 2001/08/19
SN  - 1682-3915
DO  - ajit.2016.4900.4915
UR  - https://makhillpublications.co/view-article.php?doi=ajit.2016.4900.4915
KW  - Cloud SaaS
KW  -service ontology
KW  -service discovery
KW  -concept recommendation
KW  -semantic annotation
KW  -matchmaking algorithm
AB  - The number of software providers offering their applications as a Software-as-a-Service (SaaS) to
exploit the benefits of cloud computing is increasing. New challenges to the cloud services discovery are
imposed due to the SaaS services unique characteristics such as various and dynamic service offerings and
the lack of standard description language. In this study, we propose OntSaaS, an ontology-based system for
SaaS publication and discovery. Ont SaaS standardizes the advertisement process, serves as a semantic-based
catalogue for the service offerings and provides competent search capabilities for the user. The main building
blocks of the proposed system are the unified SaaS ontology and a semantic business-oriented matchmaking
technique that maps requests and offers of cloud SaaS services. The proposed request-service matchmaking
algorithm merges semantic-based services metadata with ontology-based hierarchical matching. Prototypical
implementation and evaluation of the system proved its performance enhancement in respect of the service
utility and success rate. Results showed that the concept recommendation approach employed decreased the
service registration process time. Moreover, the proposed matchmaking algorithm similarity results revealed
the actual relevance of the offered services to the user requests. Finally, the proposed ontology-based
expansion approach for the user request improved the user opportunity to find appropriate services to his
requirements in case of discovery partial match.
ER  -