introduction: direct and rapid access to information is one of the main necessities of the users in new technological world. nowadays, information users, particularly medical information in which rapid access is of necessity, do not have enough time to search and access to information. therefore, the present study aimed to determine strategies to access required information as soon as possible....

The Department of Computer Science at the University of Illinois at Urbana-Champaign (UIUC) has identi ed the area of information systems, broadly construed, as one of three core areas for the department's future directions. In tandem with a mandate from the UIUC College of Engineering for the department to double its number of tenure-track faculty, this focus on information systems has resulte...

abstract while computerized maintenance management system (cmms) enables maintenance managers and supervisors to access information about equipment, manpower and maintenance policies, there is still a need to facilitate getting data/information into the backend database where it can be utilized by the organization as information to make decisions regarding the operation of the organization. sig...

We first briefly review relational databases and incomplete information. We then describe how querying in Information Integration Systems amounts to querying incomplete databases. We also discuss query rewriting, which essentially is a (compile-time) query optimization technique used in processing queries in Information Integration systems. Finally, we review some recent advances in query rewri...

information technology is a critical tool for companies to achieve the competitive advantage and organizational innovation. it capability provides an appropriate opportunity for retailers to improve their relationships with customers and progress firms’ performance. comes with advances in technology, retail industry by using information technology has changed its business process from tradition...