Data management issues in electronic commerce

Doğaç, Asuman


A method for concurrency control in distributed DBMSs: Permission Test Method
Halıcı, Uğur (Association for Computing Machinery (ACM), 1987-01-09)
In this paper, a method for concurrency control in distributed DBMSs, called Permission Test Method is proposed. The PT method satisfies the basic requirements for concurrency control, that is, it executes the transactions in a serializable order, deadlocks do not appear and indefinite postponment is prevented by the method. In PT method, transactions, which are permitted to run, are not aborted unless a related site failure occurs. Furthermore, the complexity analysis indicates that the algorithm will work...
Provision of market services for eCo compliant electronic marketplaces
Arpinar, S; Doğaç, Asuman (Association for Computing Machinery (ACM), 2000-09-01)
The progress and wider dissemination of electronic commerce will be facilitated through interoperability infrastructures. Commerce Net's eCo framework is a promising effort in this direction. In the eCo framework, businesses participate in a marketplace through standard interfaces for their services and by exchanging standardized documents. This framework does not specify any further interfaces for the services a marketplace itself may offer.
METU Interoperable Database system
Dogac, Asuman; Halıcı, Uğur; Kilic, Ebru; Ozhan, Gokhan; Ozcan, Fatma; Nural, Sena; Dengi, Cevdet; Mancuhan, Sema; Arpinar, Budak; Koksal, Pinar; Evrendilek, Cem (1996-01-01)
A multidatabase system based on OMG's distributed object management architecture and named Middle East Technical University (METU) INteroperable Database management system (MIND) is presented. MIND employs a dynamic query optimizer. After a query is decomposed, the global subsequeries are sent to the involved Local Database Agent (LDA) objects. The optimization process starts after the first partial result from a LDA object becomes available. For optimizing the intersite operations among these partial resul...
Attribute-based variability in feature models
Karatas, Ahmet Serkan; Oğuztüzün, Mehmet Halit S. (Springer Science and Business Media LLC, 2016-06-01)
Extended feature models enable the expression of complex cross-tree constraints involving feature attributes. The inclusion of attributes in cross-tree relations not only enriches the constraints, but also engenders an extended type of variability that involves attributes. In this article, we elaborate on the effects of this new variability type on feature models. We start by analyzing the nature of the variability involving attributes and extend the definitions of the configuration and the product to suit ...
Artemis message exchange framework: Semantic interoperability of exchanged messages in the healthcare domain
Bicer, V; Laleci, GB; Doğaç, Asuman; Kabak, Y (Association for Computing Machinery (ACM), 2005-09-01)
One of the most challenging problems in the healthcare domain is providing interoperability among healthcare information systems. In order to address this problem, we propose the semantic mediation of exchanged messages. Given that most of the messages exchanged in the healthcare domain are in EDI (Electronic Data Interchange) or XML format, we describe how to transform these messages into OWL (Web Ontology Language) ontology instances. The OWL message instances are then mediated through an ontology mapping...
Citation Formats
A. Doğaç, “Data management issues in electronic commerce,” SIGMOD RECORD, pp. 3–4, 2002, Accessed: 00, 2020. [Online]. Available: