Architectures for Web Services Access from Mobile Devices

2006 ◽  
Author(s):  
O.M. Caicedo Rendon ◽  
F.O. Martinez Pabon ◽  
M.J. Gomez Vargas ◽  
J.A. Hurtado Guaca
Keyword(s):  
Web Services ◽  
Mobile Devices

Migrating Web Services in Mobile and Wireless Environments

2011 ◽  
pp. 706-723
Author(s):  
Myung-Woo Park ◽  
Yeon-Seok Kim ◽  
Kyong-Ho Lee
Keyword(s):  
Web Services ◽  
Web Service ◽  
Mobile Devices ◽  
Wireless Network ◽  
Efficient Method ◽  
Source Code ◽  
Context Information ◽  
Wireless Environments ◽  
Migration Method ◽  
The Web

Mobile devices enabled with Web services are being considered as equal participants of the Web services environment. The frequent mobility of devices and the intermittent disconnection of wireless network require migrating or replicating Web services onto adjacent devices appropriately. This article proposes an efficient method for migrating and replicating Web services among mobile devices through code splitting. Specifically, the proposed method splits the source code of a Web service into subcodes based on users’ preferences for its constituent operations. The subcode with a higher preference is migrated earlier than others. The proposed method also replicates a Web service to other devices to enhance its performance by considering context information such as network traffic or the parameter size of its operations. To evaluate the performance of the proposed method, the effect of the code splitting on migration was analyzed. Furthermore, to show the feasibility of the proposed migration method, three application scenarios were devised and implemented.

Collaborative Mapping and GIS

2010 ◽  
pp. 388-399 ◽  
Author(s):  
Edward Mac Gillavry
Keyword(s):  
Web Services ◽  
Mobile Devices ◽  
Real World ◽  
Information Infrastructure ◽  
Geographic Information ◽  
Web Technologies ◽  
Location Aware ◽  
Collaborative Mapping ◽  
Machine Readable ◽  
Complementary And Alternative

The collection and dissemination of geographic information has long been the prerogative of national mapping agencies. Nowadays, location-aware mobile devices could potentially turn everyone into a mapmaker. Collaborative mapping is an initiative to collectively produce models of real-world locations online that people can then access and use to virtually annotate locations in space. This chapter describes the technical and social developments that underpin this revolution in mapmaking. It presents a framework for an alternative geographic information infrastructure that draws from collaborative mapping initiatives and builds on established Web technologies. Storing geographic information in machine-readable formats and exchanging geographic information through Web services, collaborative mapping may enable the “napsterisation” of geographic information, thus providing complementary and alternative geographic information from the products created by national mapping agencies.

Increasing the Performability of Wireless Web Services

2009 ◽  
pp. 518-528
Author(s):  
Wenbing Zhao
Keyword(s):  
Wireless Communication ◽  
Web Services ◽  
Mobile Devices ◽  
Future Research ◽  
Battery Life ◽  
Research Directions ◽  
Computing Power ◽  
Network Bandwidth ◽  
Technical Issues ◽  
Future Research Directions

Wireless Web services are becoming a reality, if they have not already. The unique characteristics of the mobile devices and wireless communication medium, such as limited computing power, limited network bandwidth, limited battery life, unpredictable online time, mobility, and so forth,, imply that the infrastructure for wireless Web services will be very different from its wired counterpart. This chapter discusses the challenges and the stateof- the-art solutions to ensure highly performable wireless Web services. In particular, this chapter’s focus is on three technical issues: optimization of the wireless Web services messaging protocol, caching, and fault tolerance. Finally, limitations of the current approaches and an outline of future research directions on wireless Web services are also discussed.

Augmentation of Low?Cost GPS Receivers via Web Services and Wireless Mobile Devices

2004 ◽  
Vol 3 (1&2) ◽  
pp. 85-94
Author(s):  
Roger Fraser ◽  
Adam Mowlam ◽  
Philip Collier
Keyword(s):  
Web Services ◽  
Mobile Devices ◽  
Low Cost ◽  
Gps Receivers ◽  
Wireless Mobile

Service Discovery Techniques in Mobile E-Commerce

2010 ◽  
pp. 812-823 ◽  
Author(s):  
Nandini Sidnal ◽  
Sunilkumar S. Manvi
Keyword(s):  
Web Services ◽  
Mobile Devices ◽  
Service Provider ◽  
Service Discovery ◽  
Network Services ◽  
Limited Resources ◽  
Major Focus ◽  
Future Directions ◽  
It Service ◽  
Ubiquitous And Pervasive Computing

With the rising number of web services in mobile E-commerce, service discovery has become an important feature in the future of E-commerce for mobile users. A service in the network can be any software or hardware entity that a user might be interested to utilize. Service discovery is the action of finding appropriate service provider for a requested service. When the location of the demanded service (typically the address of the service provider catering services such as shopping, auctions, edutainment, etc.) is retrieved, the user may further access the service and use it. Service discovery is an emerging field in the area of ubiquitous and pervasive computing owing to its mobile devices with limited resources. There are various service discovery techniques and protocols (proposed or/and already implemented) particularly tailored to specific set of objectives. With service discovery, devices may automatically discover network services including their properties, and services may advertise their existence in a dynamic way. This chapter discusses various mobile E-commerce issues with major focus on service discovery issue. It elaborates on syntax and semantic based various service discovery mechanisms and concludes with future directions to service discovery mechanism.

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