Application and using of Web services in the three-tier software architecture

APPLICATION AND USING OF WEB SERVICES IN THE THREE-TIER SOFTWAREARCHITECTUREYıldıray ANAGÜNElectric&Electronic Engineering, M.S.Thesis, 2007Thesis Supervisor: Asst.Prof.Dr. Ahmet ÖZMENSUMMARYIn this thesis, database systems are studied and a bus travel e-commerce application isimplemented with using three-tier architecture approach, which has much better in respect ofthe others. Currently, individual bus travel e-commerce systems are owned and operated by thetravel companies in Turkey. These e-commerce systems are non-inter operable which createproblems and difficulties for the travellers who use these systems to purchase travel tickets. Thisthesis presents a system, called ?Locus Travel?, implemented in ASP.Net platform and usedXML web services to allow information sharing between companies already implemented e-commerce systems. The system provides web based user interfaces for customers and formbased interfaces for travel agencies. Using the system one can easily make comprehensivesearch based on the provided criteria, and then buy a ticket from the search results.Keywords: There-tier architecture, XML web services, e-commerce.