Exploring Mobile Web Services Frameworks

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1 Exploring Mobile Web Services Frameworks Anil Dudhe Research Scholar, SGBAU Amravati ABSTRACT: The most immensely colossal transmutation in Web development over the past few years has been the remarkable elevate of mobile computing. Mobile phones used to be massive for making phone calls and sending short text message. Mobile Web service provisioning is the art of hosting and offering Web service from mobile devices, which actively contributes towards the direction of Mobile Internet. This paper focuses on competent frameworks for Mobile based Web services. We propose comparative study of Web services based different frameworks for exploring the mobile computing environment and to study various parameters related to different frameworks of Web services in the mobile environment. Keywords: We services, Mobile Web Services, Mobile Frameworks INTRODUCTION For many years mobile device were commonly apperceived as Web consumers. Versatile Web Services apply Web Services innovation to the ubiquitous devices, empowering energizing new administrations to be offered to consumers on their cell phones, remote LAN-empowered PDAs and smart phones. The W3C [1] states that two major classes of Web services: REST-compliant Web services, in which the primary purpose of the service is to manipulate XML representations of Web resources using a uniform set of "stateless" operations; and arbitrary Web services, in which the service may expose an arbitrary set of operations. Consumption of web services on mobile smart phone was not an easy task, due limitation of mobile devices, but beyond belief development in Dr S S Sherekar Professor, Dept of Comp Science SGBAU Amravati its capability made it possible to deploy web services on smart mobile phones. There are many reasons for designing and hosting a mobile based web services: 1. Mobiles are handy so consumers carrying with them and access any kind of service available through internet. 2. Now a day consumers are watching live cricket, live TV, live Webinars, lectures etc through web services. 3. Consumers are doing their bank related transactions, payment of insurance, payment of electricity bill, money transfer, mobile wallet, Paytm etc through web services. 4. Consumers can play big and complex games online through mobile web services. 5. For e-commerce and fashion website Mobile Web services are good choice to attract the customers. Now a day s everything we getting in digital form even cash and gold also. To take advantages of all such features, we should go with Mobile Web Services. Design of Mobile Web Services Design of Web Services on Mobile devices allows programmer to deploy, discover, publish and execute Web services in wireless medium. Mobile Web services are installed on mobile devices and accessed via wireless networks technology. There are various restrictions and issues with Mobile devices which may affects Mobile services as well. Since from the beginning, on Mobile services much of the research efforts have been done to provide reliable mobile services regardless of the restrictions of mobile environments [2]. 285

2 Mobile Web services can design using 1. SOA Web services 2. REST Web Services SOA Web services Web services that act in accordance with SOA architecture and make use of the SOAP protocol to communicate between the client interface and provider are called SOAP-based (Simple Object Access Protocol) Web services. SOAP is a W3C specification used for exchanging messages among Web services. Web services are the most popular implementation of Service Oriented Architecture (SOA) [3]. In SOA, a service is defined by a Web interface that supports interoperable operations between different software applications utilizing a Web service providers. They have implemented the RESTful Web services approach in their offered Web services. Apart from that others include Flickr, del.icio.us, pubsub, bloglines, technorati etc[7]. REST expose resources both data and functionality through web URIs, and uses the basic HTTP (GET, POST, PUT, and DELETE) methods to create, retrieve, update, and delete resources [8]. Design of Mobile Web services for SOAP based as well as RESTful web services are given in [9] and respective result also provided which shows RESTful is giving best performance compare to SOAP web services. Table- I A Summary Comparison of Web Services Design Approaches Feature SOAP Based REST Based Architecture Style Transport Protocol Service Oriented Supports Any protocol Resource Oriented Support HTTP only standard messaging protocol [4]. In SOAP-based Web services design technique the service provider and consumers need to setup a common SLA described in the Web Services Description Language WSDL), and find through Universal Description Discovery and Integration (UUDI) registry. SOAP protocol is implemented using XML [5]. REST Web Services Fielding [6] defined this as a new architectural style for network based application called as REpresentational State Transfer (REST). Web services built using REST principles are called RESTful Web services. In today s market Google, Amazon, Salesforces, Yahoo, and ebay are major 286 Web Service Architecture Access Scheme Single end point URI for each resource Description WSDL No standard Data Representation XML only XML, JSON etc Caching No Support Supported Standard Specification Design Heavy-weight and XML based Computer understandable (WSDL) Distributed Computing Environment Service Call Calling RPC method Service Consumption Consumed in.net based mobile platforms Light and based Human readable Message Size Smaller Large weight HTTP Point to Point Environment Call service via URL path Consumed in Objective-C, Android, Javascript (for mobile apps)

3 MOBILE WEB SERVICES FRAMEWORKS In mobile environment Web services are showing outbox performance, it is providing each and every thing on finger touch. The main parameters to be considered for performance measures for Web services are optimized request-response, message size, request-response time, power consumption by mobile devices. Mobile Web services frameworks are able to give answers of different types of results by exchanging data among request and response. Following are the various frameworks discussed for Web services provisioning in Mobile devices. Y.S. Kim et.al [10] proposed a lightweight framework for hosting web services on mobile devices which provides various builtin functionalities like the process of SOAP messages, the execution and migration of services, the management of context and repair directory, and also the business enterprise and discovery of services. They evaluated the performance of the projected mobile internet service framework, underneath a real-world state of affairs and results showed that the framework support Web services in a mobile device well. Fahad Aijaz et.al. [11] brought factors that degrades the performance of any mobile application due to limitations of mobile devices like limited processing power, storage capacity, heterogeneous network etc. and proposed a concept of REST based Mobile Web Services (MobWS) provisioning and compared with its similar technology, i.e. SOAP architecture. They studied interaction of synchronous and asynchronous RESTful MobWS. Also bestowed technique of improvement of HTT P payload with help of resource oriented technique. Their study have shown the REST based MobWS by significantly reducing the payload compared with SOAP based MobWS F. AlShahwan and K. Moessner [12] presented two totally different frameworks for obtaining very lightweight Web services. The primary framework provides implementation of SOAP Web services and the second provides quiet RESTful Web services. Each of these 2 frameworks has its 287 own advantages and disadvantages. And the result of comparison shows that a RESTful-based MWSF is a best suitable for mobile devices. R.Sharma and A Srivastava [13] presented new architecture with the help of XMPP (Extensible Messaging and Presence Protocol) for mobile web services. Getting Services on mobile uninterrupted form is crucial thing. XMPP has showed its effectiveness in managing service availability information. K. Eldin, and D.Wijesekera [14] proposed a lightweight framework for hosting Web services on mobile devices. They studied SOAP based Web services and RESTful Web services and showed result that RESTful is efficient for provisioning of Web services from mobile devices. K. Wagh and R. Thool [15] also proposed the frameworks used for Mobile web services. This framework supports for both SOAP based as well as RESTFul Web services. After study they found that REST based framework is more suitable for Mobile devices in accordance with wireless network. Also observed that the resource consumption is less in REST as compared to SOAP and Security point of view SOAP framework is more secure than REST. K. Wagh and R. Thool [16] also presented lightweight framework for Android host. They created an efficient and reliable RESTful mobile web services with the help of Android platform, SQlite and Java programming. And Results are compared with SOAP based web service. ANALYSIS AND DISCUSSION We proposed critical analysis and discussion of various frameworks for Web Services in resource constrained device Mobile on various parameters that are given as follows: K. Wagh and R. Thool [15] have tested their framework for different condition by changing message size and observed the result for both RESTful and SOAP Web services and found that RESTful is giving better performance than SOAP. They have tested light-weightiness test for memory and power consumption by both services. They observed 6-11% CPU power and 9-18 MB memory consumption by SOAP whereas 1-3%

4 CPU power and 8-10MB memory consumption by RESTFul. They have tested scalability as well and found RESTful is more scalable than SOAP. Lomotey [17] conducted two different experiments, 1. Delayed focused on round-trip time between requester and host. 2. The average response time of middleware. They observed the result which has shown REST request rate is increased 9.91% compare to SOAP and consumed WS efficiently at higher response time. SOPHRA are comfortable with the response time. Aijaz et. al. [18] observed in the result that SOAP WS shown low performance in XML data exchange between request-response interactions. They demonstrated the result of both and shown RESTful web service is showing outshine performance than SOAP web services. In [7] author have conducted two experiments In first one they measure time by sending 100 and 1000 character messages using REST and SOAP. As per analysis REST is better in performance in this experiment: response time of 100 character message (2.56 s ± 0.10 s) and 1000 character message (3.45 s ± 0.10 s) was considerably lesser compared to SOAP time, when 100 character (5.64 s ± 0.17 s) and 1000 character (5.83 s ± 0.17 s) messages were sent. The second experiment was based on master-slave implementations for testing population and generations data. Both implementations obtain good results using even a small number of generations and population size. They found the running time point of view; REST implementation is faster in both. K Wagh and R Thool [19] proposed framework to test RESTful based web service provisioning on for Android mobile host. In this framework client sends a HTTP request from Android device which will be executed by main module and forward the request to the URL parser using Response class and parser send reply back to the response class. They conducted HTTP and SMS based Request- Response analysis also conducted Power consumption analysis. RESTful found be the better solution for Android mobile device. This paper discusses the various different frameworks used in Mobile Web services with different methodologies. This comparative study based on these frameworks will lead to some final conclusion of best results in designing a new framework which considered as best for further implementation by considering all the various parameters which really affects the performance of the Mobile Web services with designing and implementing efficient Mobile web services. CONCLUSION In this survey paper we have studied various frameworks proposed for consuming Web services on resource constrained Mobile devices. All proposed frameworks are designed using SOAP and RESTful API for different purposes. In all papers researchers have observed RESTful web service is giving better performance on Mobile devices as compared to SOAP. REFERENCES 1. Web Services architecture. 2. Dan Chalmers ; Morris Sloman, A survey of quality of service in mobile computing environments, IEEE Communications Surveys, Vol 2 Issue: 2, Page 2-10, Francesco Buccafurri, Andreas Holzinger, Peter Kieseberg, A Min Tjoa, Edgar Weippl, A Cloud based predict framework for Analysis Business Process Performances, published by Springer International Publishing Switzarland, PP 63-80, Hamid R. Motahari Nezhad and Boualem Benatallah, Web Services Interoperability Specifications, published by IEEE Computer Society, Quan Z. Sheng, Xiaoqiang Qiao, Athanasios V. Vasilakos, Claudia Szabo, Scott Bourne, Xiaofei Xu, Web services composition: A decade s overview, Information Sciences (Science Direct),280, Oct R. T. Fielding, Architectural styles and the design of network-based software architectures. PhD thesis, University of California, Irvine, USA, P. A. Castillo, J. L. Bernier, M. G. Arenas, J. J. Merelo, P. Garcias- Sanchez, SOAP vs REST: Comparing a master-slave GA implementation, in 288

5 The 1st International Workshop of Distributed Evolutionary computation in Informal Environments, Greg Goth, Critics Say Web Services Need a REST, IEEE DISTRIBUTED SYSTEMS ONLINE Published by the IEEE Computer Society Vol. 5, No. 12; December Anil Dudhe, S S Sherekar, Performance Analysis of SOAP and RESTful Mobile Web Services in Cloud Environment, International Journal of Computer Applications ( ) Second National Conference on Recent Trends in Information Security, GHRCE, Nagpur, India, Jan Yeon-Seok Kim, Kyong-Ho Lee, A lightweight framework for mobile web services, Computer Science - Research and Development, CSRD (2009) 24: , Fahad Aijaz ; Syed Zahid Ali ; Muzzamil Aziz Chaudhary ; Bernhard Walke, Enabling High Performance Mobile Web Services Provisioning, Vehicular Technology Conference Fall (VTC 2009-Fall), 2009 IEEE 70th, ISBN: , F. AlShahwan and K. Moessner, Providing soap web services and restful web services from mobile hosts, in Internet and Web Applications and Services (ICIW), 2010 Fifth International Conference on. IEEE, 2010, pp Verma, R., Abhishek, S, A novel web service directory framework for mobile environments In 2014 IEEE International Conference on Web Services (ICWS), pp , Kamal Eldin Mohamed, Duminda Wijesekera. A lightweight Framework for Web Services Implementations on Mobile Devices. Proceedings of the 2012 IEEE First International Conference on Mobile Services. 2012: K. Wagh and R. Thool, Mobile Web Service Provisioning And Performance Evaluation Of Mobile Host, International Journal on Web Service Computing (IJWSC), Vol.5, No.2, June K. Wagh and R. Thool. Article: Web Service Provisioning on Android Mobile Host. International Journal of Computer Applications 81(14):5-11, November Lomotey, R. K., Jamal, S., and Deters, R. SOPHRA, A Mobile Web Services Hosting Infrastructure in mhealth, 2012 IEEE First International Conference on Mobile Services (MS), pp.88-95, June F. Aijaz, S. Z. Ali, M. A. Chaudhary, and B. Walke, Enabling High Performance Mobile Web Services Provisioning, Published in: Vehicular Technology Conference Fall (VTC Fall), 2009 IEEE 70th, Sept K. Wagh and R. Thool, Performance Evaluation of Hybrid Framework for Mobile Web Service Provisioning, Canadian Journal on Technology Innovation, Vol.1,

Developing Mobile Application Framework By Using RESTFul Web Service with JSON Parser

Developing Mobile Application Framework By Using RESTFul Web Service with JSON Parser Ei Ei Thu,Than Nwe Aung University of Computer Studies Mandalay (UCSM), Mandalay, Myanmar. eieithuet@gmail.com, mdytna@gmail.com