Service science,management, engineering, and design (SSMED): an emerging discipline -- outline and references

The growth of the global service economy has led to a dramatic increase in our daily interactions with highly specialized service systems. Service (or value-cocreation) interactions are both frequent and diverse, and may include retail, financial, healthcare, education, on-line, communications, technical support, entertainment, transportation, legal, professional, government, or many other types of specialized interactions. And yet surprisingly few students graduating from universities have studied anything about service or service systems. Service Science, Management, Engineering, and Design (SSMED), or service science for short, is an emerging discipline aimed at understanding service and innovating service systems. This article sketches an outline and provides an extensive, yet preliminary, set of references to provoke discussions about the interdisciplinary nature of SSMED. One difficult challenge remaining is to integrate multiple disciplines to create a new and unique service science

Using usage control to access XML databases

XML documents usually contain private information that cannot be shared by every user communities. It is widely used in web environment. XML database is becoming increasingly important since it consists of XML documents. Several applications for supporting selective access to data are available over the web. Usage control has been considered as the next generation access control model with distinguishing properties of decision continuity. It has been proven efficient to improve security administration with flexible authorization management. Object-oriented database systems represent complex data structure and XML databases may be stored in the objects-oriented database system. Therefore authorization models for XML databases could be used the same the models as object-oriented databases. In this paper, we propose usage control models to access XML databases and compare with an authorization model designed for object-oriented databases. We have analyzed the characteristics of various access authorizations and presented detailed models for different kinds of authorizations. Finally, comparisons with related works are analyzed

A Knowledge Mining Approach for Effective Customer Relationship Management

The problem of existing customer relationship management (CRM) system is not lack of information but the ability to differentiate useful information from chatter or even disinformation and also maximize the richness of these heterogeneous information sources. This paper describes an improved text mining approach for automatically extracting association rules from collections of textual documents. It discovers association rules from keyword features extracted from the documents. The main contributions of the technique are that, in selecting the most discriminative keywords for use in association rules generation, the system combines syntactic and semantic relevance into its Information Retrieval Scheme which is integrated with XML technology. Experiments carried out revealed that the extracted association rules contain important features which form a worthy platform for making effective decisions as regards customer relationship management. The performance of the improved text mining approach is compared with existing system that uses the GARW algorithm to reveal a significant reduction in the large itemsets, leading to reduction in rules generated to more interesting ones due to the semantic analysis component being introduced. Also, it has brought about reduction of the execution time, compared to the GARW algorithm.</p