From ASP to Web Services

2011 ◽  
pp. 149-177
Author(s):  
Matthew W. Guah ◽  
Wendy L. Currie
Keyword(s):  
Web Services ◽  
Web Service ◽  
Service Providers ◽  
Value Added ◽  
Organizational Structures ◽  
Application Service Provider ◽  
Rigorous Approach ◽  
Application Service ◽  
Future Success ◽  
Context Specific

Value creation from e-business for customers in healthcare is an important topic in academic and practitioner circles. This chapter reports the findings from a two-year research study, which found that disappointing results from the much-hyped application service provider (ASP) business model is currently being replaced by perceived new opportunities from Web services. Yet past failings from ASP do not guarantee future success with Web services models, particularly as evidence shows that accruing value-added benefits from e-business initiatives is often fraught with difficulty. Healthcare is no exception, and is likely to pose more problems given the complexity of the organizational structures, processes, procedures, and activities within this vertical sector. This research studycalls for a more rigorous approach in identifying and evaluating key performance areas and indicators from new e-business initiatives involving emerging technologies and platforms such as Web services. Yet the measures and metrics used for healthcare may differ from those adopted in other sectors. Healthcare professionals will therefore need to develop context specific key performance areas (KPAs) and KPIs, and caution against accepting at “face value” the value proposition devised by Web service providers.

From ASP to Web Services

2009 ◽  
pp. 1690-1708
Author(s):  
Matthew W. Guah ◽  
Wendy L. Currie
Keyword(s):  
Web Services ◽  
Research Study ◽  
Service Providers ◽  
Value Added ◽  
Organizational Structures ◽  
Application Service Provider ◽  
Rigorous Approach ◽  
Application Service ◽  
Future Success ◽  
Context Specific

Value creation from e-business for customers in healthcare is an important topic in academic and practitioner circles. This chapter reports the findings from a two-year research study, which found that disappointing results from the muchhyped application service provider (ASP) business model is currently being replaced by perceived new opportunities from Web services. Yet past failings from ASP do not guarantee future success with Web services models, particularly as evidence shows that accruing value-added benefits from e-business initiatives is often fraught with difficulty. Healthcare is no exception, and is likely to pose more problems given the complexity of the organizational structures, processes, procedures, and activities within this vertical sector. This research study calls for a more rigorous approach in identifying and evaluating key performance areas and indicators from new e-business initiatives involving emerging technologies and platforms such as Web services. Yet the measures and metrics used for healthcare may differ from those adopted in other sectors. Healthcare professionals will therefore need to develop context specific key performance areas (KPAs) and KPIs, and caution against accepting at “face value” the value proposition devised by Web service providers.

The Research of Semantic Web Service Composition Framework Based on Ontology

2014 ◽  
Vol 912-914 ◽  
pp. 1473-1476
Author(s):  
Bo Yang ◽  
Ying Fang Li ◽  
Xiang Yang ◽  
Ying Jiang Li
Keyword(s):  
Web Services ◽  
Semantic Web ◽  
Web Service ◽  
Service Composition ◽  
Service Providers ◽  
Value Added ◽  
Web Service Composition ◽  
Semantic Web Service ◽  
Paper Making ◽  
Semantic Web Service Composition

At present, more and more service providers carry on their business as a Web type. However, the function of individual Web services is very limited and the lack of semantic information, only can meet the needs for a single customer. In this paper, making Web services become an entities understood by the computer through introducing the concept of the Ontology. A framework of Semantic Web Service composition also is proposed based on Ontology for assembling basic Web services coming from different service providers and a solution is provided for to achieve value-added services based on a single service.

Managing QoS Degradation of Component Web Services in a Dynamic Environment

2018 ◽  
Vol 14 (2) ◽  
pp. 162-190
Author(s):  
Navinderjit Kaur Kahlon ◽  
Kuljit Kaur Chahal ◽  
Sukhleen Bindra Narang
Keyword(s):  
Web Services ◽  
Web Service ◽  
Programming Languages ◽  
Service Providers ◽  
Dynamic Environment ◽  
Value Added ◽  
Functional Requirements ◽  
Loosely Coupled ◽  
Development Framework ◽  
Composite Web Service

In Services Oriented Computing, a composite web service is a value-added service composed of loosely coupled, independent, and distributed component web services. Component or partner web services jointly contribute to fulfil functional as well as non-functional requirements of users of a composite web service. One of the fundamental challenges in Services Oriented Computing is to ensure that a composite web service is flexible enough to react to changes (QoS degradation) in its partner web services at the time of execution. In this context, it is important that the time to adapt to changes should not be significant. Several solutions exist for run-time monitoring of partner web services so that clients can replace them with better alternatives when their QoS values degrade. But these solutions follow either a reactive approach (which is time consuming), or a prediction-based proactive approach (again time consuming, and moreover predicted events may never happen). This article proposes a solution using a publish/subscribe mechanism which is distributed between web service clients and the service providers, and follows a proactive preventive approach. It uses mobile agents to communicate partner web service's QoS status to its clients just in time, in order to decide to choose an alternative in case the QoS values are not satisfactory. The prototype is implemented using JAVA and Java Agent DEvelopment framework (JADE) programming languages. The experimental results show effectiveness of the proposed approach when compared with a static approach (the benchmark), as well as with a reactive solution. Moreover, the framework performs well even in the wake of the increasing levels of QoS degradation of partner web services.

Automatic Web Service Composition Based on Behavior Network

2006 ◽  
Vol 10 (5) ◽  
pp. 728-732
Author(s):  
Myung-Chul Jung ◽  
◽  
Sung-Bae Cho
Keyword(s):  
Web Services ◽  
Web Service ◽  
Service Composition ◽  
Service Providers ◽  
Value Added ◽  
Web Service Composition ◽  
Rule Based System ◽  
Optimal Service ◽  
Amazon Web Services ◽  
Behavior Network

As Web services become more widely disseminated, tools are needed to help users find and integrate these services. As these services become more available, users and service providers will want to obtain new and value-added services by combining and reconfiguring existing services. We propose novel Web service composition based on a behavior network that selects services automatically through internal and external links with environmental information from sensor and goals. Optimal services are selected at each step, resulting in a globally optimal service sequence for achieving a preset goal. We developed our prototype using Amazon Web services to verify its feasibility. Experimental results comparing rule-based system and user tests demonstrated the potential of the behavior network for Web services applications.

Web Services in China

2014 ◽  
pp. 267-286 ◽  
Author(s):  
Dong Dong ◽  
Lizhe Sun ◽  
Zhaohao Sun
Keyword(s):  
Web Services ◽  
Social Networking ◽  
Web Service ◽  
Chinese Culture ◽  
Service Providers ◽  
Cloud Services ◽  
Mao Zedong ◽  
Chinese Traditional Culture ◽  
Ict Industry ◽  
Communication Conventions

This chapter examines Web services in China. More specifically, it examines the state-of-the-art of China's Web services in terms of cloud services, mobile services, and social networking services through exploring several leading Web service providers in the ICT industry, including Alibaba, Tencent, China Mobile, and Huawei. This research reveals that the Chinese culture has played an important role in the success of China's Web services. The trade-off ideology and communication conventions from Chinese traditional culture, as well as Mao Zedong thought, greatly influenced the development of China's Web services. The findings of this chapter might facilitate the research and development of Web services and better understanding of the growth in China's ICT industry, as well as future trends.

A Decision Support System for Selecting Secure Web Services

2010 ◽  
pp. 556-564
Author(s):  
Khaled M. Khan
Keyword(s):  
Web Services ◽  
Web Service ◽  
Service Providers ◽  
Selection Process ◽  
Enterprise Systems ◽  
Third Party ◽  
Security Requirements ◽  
Enterprise Application ◽  
Systems Security ◽  
Selection Of

Web service is becoming an important area of business processing and research for enterprise systems. Various Web service providers currently offer diverse computing services ranging from entertainment, finance, and health care to real-time application. With the widespread proliferation of Web Services, not only delivering secure services has become a critical challenge for the service providers, but users face constant challenges in selecting the appropriate Web services for their enterprise application systems. Security has become an important issue for information systems (IS) managers for a secure integration of Web services with their enterprise systems. Security is one of the determining factors in selecting appropriate Web services. The need for run-time composition of enterprise systems with third-party Web services requires a careful selection process of Web services with security assurances consistent with the enterprise business goal. Selection of appropriate Web services with required security assurances is essentially a problem of choice among several alternative services available in the market. The IS managers have little control of the actual security behavior of the third-party Web services, however, they can control the selection of right services which could likely comply their security requirements. Selecting third-party Web services arbitrarily over the Internet is critical as well as risky.

A Novel Physics Inspired Approach for Web Service Composition

2014 ◽  
Vol 11 (2) ◽  
pp. 67-84 ◽  
Author(s):  
Tanveer Ahmed ◽  
Abhishek Srivastava
Keyword(s):  
Web Services ◽  
Web Service ◽  
Service Composition ◽  
Service Oriented Architecture ◽  
Service Providers ◽  
Web Service Composition ◽  
Heterogeneous Services ◽  
Service Oriented ◽  
Service Consumer ◽  
Selection Of

Service oriented architecture has revolutionized the way a traditional business process is executed. The success of this architecture is Indue to the composition of multiple heterogeneous services at runtime. Web service composition is a mechanism where several web services are combined at runtime to build a complex application for a user. It is one of the most sought after processes in the context of semantic web. But, composition of web services at runtime is a difficult task owing to the availability of multiple service providers offering the same functionality. The process if exasperated by due conflicting preferences of a service consumer. In this paper, the authors address the issue of selecting a service based on Quality of Service (QoS) attributes. They utilize concepts customized from physics to create an environment that facilitates the selection of a best service from the set of similar services. The technique not only facilitates the selection of the service with the best QoS attributes, but distributes the load among expeditiously. Here in this paper, the authors concentrate on minimizing and equitably balancing the waiting time for a user. They conduct in silico experiments on multiple workflows to demonstrate the efficacy of the proposed technique to balance load efficiently among similar service offerings.

A Decision Support System for Selecting Secure Web Services

2011 ◽  
pp. 211-217 ◽  
Author(s):  
Khaled M. Khan
Keyword(s):  
Web Services ◽  
Web Service ◽  
Service Providers ◽  
Selection Process ◽  
Enterprise Systems ◽  
Third Party ◽  
Security Requirements ◽  
Enterprise Application ◽  
Systems Security ◽  
Selection Of

Web service is becoming an important area of business processing and research for enterprise systems. Various Web service providers currently offer diverse computing services ranging from entertainment, finance, and health care to real-time application. With the widespread proliferation of Web Services, not only delivering secure services has become a critical challenge for the service providers, but users face constant challenges in selecting the appropriate Web services for their enterprise application systems. Security has become an important issue for information systems (IS) managers for a secure integration of Web services with their enterprise systems. Security is one of the determining factors in selecting appropriate Web services. The need for run-time composition of enterprise systems with third-party Web services requires a careful selection process of Web services with security assurances consistent with the enterprise business goal. Selection of appropriate Web services with required security assurances is essentially a problem of choice among several alternative services available in the market. The IS managers have little control of the actual security behavior of the third-party Web services, however, they can control the selection of right services which could likely comply their security requirements. Selecting third-party Web services arbitrarily over the Internet is critical as well as risky.

DELIVERING BUSINESS CRITICAL INFORMATION SYSTEMS THOUGH APPLICATION SERVICE PROVIDERS: THE NEED FOR A MARKET SEGMENTATION STRATEGY

2001 ◽  
Vol 05 (03) ◽  
pp. 323-349 ◽  
Author(s):  
WENDY L. CURRIE ◽  
PHILIP SELTSIKAS
Keyword(s):  
Empirical Research ◽  
Market Segmentation ◽  
Large Scale ◽  
Best Practice ◽  
Service Providers ◽  
Application Service Provider ◽  
Physical Sciences ◽  
Application Service Providers ◽  
Segmentation Strategy ◽  
Application Service

This paper draws from the findings of a large-scale empirical research program on the global application service provider (ASP) industry funded by research grants from the European Commission (EC) and the Engineering and Physical Sciences Research Council (EPSRC). A conceptual framework consisting of a taxonomy of ASPs is used to demonstrate the different market segmentation strategies adopted by ASPs for competing in this fledgling and turbulent industry. Drawing from empirical research carried out in the US and Europe, the paper evaluates ASP strategies for deploying, hosting, managing and enabling software applications on behalf of their customers. The ASP business model is advocated as an attractive value proposition for SMEs, dot.com companies and other start-up firms seeking hyper-growth. Yet the evidence so far suggests a slow start to the ASP market as few reference sites demonstrating best practice exist. ASPs will therefore need to re-evaluate their strategies if they are to convince potential customers of the benefits of application outsourcing. Against this background, the paper evaluates the benefits and risks of the ASP model.

scholarly journals Mutation-Based Harmony Search Algorithm for Hybrid Testing of Web Service Composition

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Eckwijai Maythaisong ◽  
Wararat Songpan
Keyword(s):  
Web Services ◽  
Web Service ◽  
Service Composition ◽  
Service Providers ◽  
Search Algorithm ◽  
Harmony Search ◽  
Web Service Composition ◽  
Hybrid Testing ◽  
Business Plans ◽  
Business Goals

Web service composition is a method of developing a new web service from an existing one based on business goals. Web services selected for composition should provide accurate operational results and reliable applications. However, most alternative service providers have not yet fulfilled users’ needs in terms of services and processes. Service providers, in fact, have focused on enhancing nonfunctional attributes, such as efficiencies of time, cost, and availability, which still face limitations. Furthermore, it remains advantageous to compose services and suitably plan them around business plans. Thus, this study introduces hybrid testing using a combination of the functional and nonfunctional testing approaches. The former was used to design a test case through the equivalence class partitioning technique, and the latter was used to select suitable services for the test results. We find defects and appropriate solutions for combining services based on business requirements. The mutation-based harmony search (MBHS) algorithm is proposed to select web services and to compose with minimum defects. The results of this study reveal that MBHS can support a combination of various services more efficiently and dramatically than other metaheuristic methodologies. Additionally, it helps find appropriate solutions to compose services based on business plans.

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