Distributed and Adaptive Service Discovery Using Preference

Author(s):  
Ryota Egashira ◽  
Akihiro Enomoto ◽  
Tatsuya Suda

In Service-Oriented Computing, service providers publish their services by deploying service components which implement those services into a network. Since such services are distributed around the network, Service-Oriented Computing requires the functionality to discover the services that meet certain criteria specified by an end user. In order to overcome the scalability issue that the current centralized discovery mechanism inherently has, distributed discovery mechanisms that the P2P research community has developed may be promising alternatives. This chapter outlines existing distributed mechanisms and proposes a novel discovery mechanism that utilizes end users’ preferences. The proposed mechanism allows end users to return their feedback that describes the degree of the preference for discovered services. The returned preference information is stored at nodes and utilized to decide where to forward subsequent queries. The extensive simulation demonstrates that the proposed mechanism meets key requirements such as selectivity, efficiency and adaptability.

Author(s):  
Nitin Vishnu Choudhari ◽  
Dr. Ashish B Sasankar

Abstract –Today Security issue is the topmost problem in the cloud computing environment. It leads to serious discomfort to the Governance and end-users. Numerous security solutions and policies are available however practically ineffective in use. Most of the security solutions are centered towards cloud technology and cloud service providers only and no consideration has been given to the Network, accessing, and device securities at the end-user level. The discomfort at the end-user level was left untreated. The security of the various public, private networks, variety of devices used by end-users, accessibility, and capacity of end-users is left untreated. This leads towards the strong need for the possible modification of the security architecture for data security at all levels and secured service delivery. This leads towards the strong need for the possible adaption of modified security measures and provisions, which shall provide secured hosting and service delivery at all levels and reduce the security gap between the cloud service providers and end-users. This paper investigates the study and analyze the security architecture in the Cloud environment of Govt. of India and suggest the modifications in the security architecture as per the changing scenario and to fulfill the future needs for the secured service delivery from central up to the end-user level. Keywords: Cloud Security, Security in GI Cloud, Cloud Security measures, Security Assessment in GI Cloud, Proposed Security for GI cloud


2017 ◽  
Vol 19 (3) ◽  
pp. 144-156 ◽  
Author(s):  
Vitalija Petrulaitiene ◽  
Eelis Rytkönen ◽  
Suvi Nenonen ◽  
Tuuli Jylhä

Purpose The need to understand work processes and end-users has become an issue in corporate real estate and workplace management. Flexible work practices and technological advancement allow end-users to move outside the building boundaries. This influences workplace management to become more service-oriented and demand-driven, and better serve the needs of end-users. For that, this paper aims to investigate the ways in which new workplace services support the knowledge creation processes of mobile workers. Design/methodology/approach This study is exploratory and follows a multiple-case study strategy. Literature is reviewed on workplace and knowledge theories, and the market analysis consists of data from 57 firms that offer services to support the mobile knowledge worker. Findings Workplace services were categorized into three new groups that support knowledge creation processes for the mobile knowledge worker in various work environments. The analysis indicated that new services are driven by technological development and community formation around the physical or virtual place. Practical implications The proposed service groups can be examined as new business opportunities by workplace service providers, and the results suggest that the CRE managers should re-think their service portfolios, boost their collaboration with the service providers and invest in building a community. Originality/value This paper categorizes workplace services from a mobile knowledge worker perspective and follows a service-oriented approach to workplace management.


2021 ◽  
Author(s):  
Hamza Ali Imran ◽  
Usama Latif ◽  
Ataul Aziz Ikram ◽  
Maryam Ehsan ◽  
Ahmed Jamal Ikram ◽  
...  

<div>In the span of a decade, innovations in cloud computing have led to a new understanding of computing to be used as a utility. Majority of cloud service providers are making the service better and competitive for end-user. Aside from the number of services introduced by these providers, users are feeling uneasy and are unaware of consequences while switching from one service to another. Internal architecture of the cloud makes it difficult for end-users to understand. To overcome this issue a new concept of multi-cloud has been introduced. In multi-cloud technology, we can use multiple clouds from different vendors without platform complexity. Hence summarized, Multi-cloud is the usage of autonomous cloud platforms with one interface which may clue to different administrative and implementation domains. This paper reviews the literature of recently presented solutions and architectures for multi-cloud platforms.</div>


2021 ◽  
Author(s):  
Hamza Ali Imran ◽  
Usama Latif ◽  
Ataul Aziz Ikram ◽  
Maryam Ehsan ◽  
Ahmed Jamal Ikram ◽  
...  

<div>In the span of a decade, innovations in cloud computing have led to a new understanding of computing to be used as a utility. Majority of cloud service providers are making the service better and competitive for end-user. Aside from the number of services introduced by these providers, users are feeling uneasy and are unaware of consequences while switching from one service to another. Internal architecture of the cloud makes it difficult for end-users to understand. To overcome this issue a new concept of multi-cloud has been introduced. In multi-cloud technology, we can use multiple clouds from different vendors without platform complexity. Hence summarized, Multi-cloud is the usage of autonomous cloud platforms with one interface which may clue to different administrative and implementation domains. This paper reviews the literature of recently presented solutions and architectures for multi-cloud platforms.</div>


2012 ◽  
Vol 2 (2) ◽  
pp. 31-40
Author(s):  
Siddesh G. M. ◽  
Srinivasa K. G.

With an advent of gaining popularity in cloud computing, there is a huge demand in ad-hoc services by the end users. These ad-hoc services cannot fully be provided by a service provider; hence Cloud mashup is a solution for this requirement. Cloud mashup is technology where end users can integrate different services of cloud service providers and create their own customized ad-hoc services. This paper proposes an efficient enterprise cloud mashup framework which supports dynamic composition of services to create a new service to the end users. The proposed framework is composed of an adapter, widgets, widget library and a mashup constructor module. Even a non technical end user can easily generate their own customized service on a cloud platform. Experiments reveal that the proposed framework is an efficient enterprise with cloud mashup service integration framework.


Author(s):  
Roman Vaculín ◽  
Roman Neruda ◽  
Katia Sycara

In this chapter the problem of interoperability of incompatible business processes consisting of semantically annotated Web services is addressed, proposing a (semi-) automated solution, called process mediation, that analyzes the potentially incompatible process models of service requesters and service providers, identifying all incompatibilities, and automatically synthesizing reconciliation plans that can be used at runtime for resolving the identified incompatibilities. Compared to the previous research, the main novelty of this work is its strong focus on dynamic scenarios common for process-based service-oriented systems operating in open or semi-open dynamic environments. The chapter covers techniques for automated incompatibilities detection and resolution, service discovery in the process mediation context, techniques for monitoring, and techniques for fault handling and recovery. Finally, it discusses the lessons learned and provides an outlook for future research directions.


2005 ◽  
Vol 14 (04) ◽  
pp. 469-502 ◽  
Author(s):  
RICHARD HULL ◽  
BHARAT KUMAR ◽  
DANIEL LIEUWEN ◽  
PETER F. PATEL-SCHNEIDER ◽  
ARNAUD SAHUGUET ◽  
...  

The web and converged services paradigm promises tremendous flexibility in the creation of rich composite services for enterprises and end users. The flexibility and richness offers the possibility of highly customized, individualized services for the end user and hence revenue generating services for service providers (e.g. ASPs, telecom network operators, ISPs). But how can end users (and enterprises) specify their preferences when a myriad of possibilities and potential circumstances need to be addressed? In this paper, we advocate a solution based on policy management where user preferences are specified through forms but translated into rules in a high-level policy language. This paper identifies the requirements for this kind of interpretation, and describes the Houdini system (developed at Bell Labs) which offers a rich rule-based language and a framework that supports intuitive, forms-based provisioning interfaces.


Author(s):  
Shuiguang Deng ◽  
Zhaohui Wu ◽  
Jian Wu

To discover services efficiently has been regarded as one of important issues in the area of Service Oriented Computing (SOC). This article carries out a survey on the issue and points out the problems for the current semantic-based service discovery approaches. After that, an information model for registered services is proposed. Based on the model, it brings forward a two-phase semantic-based service discovery method which supports both the operation matchmaking and operation-composition matchmaking. Th authors import the bipartite graph matching to improve the efficiency of matchmaking. An implementation of the proposed method is presented. A series of experiments show that the method gains better performance on both discovery recall rate and precision than a traditional matchmaker and it also scales well with the number of services being accessed.


2021 ◽  
Author(s):  
José Manuel Delgado Blasco ◽  
Antonio Romeo ◽  
David Heyns ◽  
Natassa Antoniou ◽  
Rob Carrillo

&lt;p&gt;The OCRE project, an H2020 funded by the European Commission, aims to increase the usage of Cloud and EO services by the European research community by putting available EC funds 9.5M euro, aiming to removing the barriers regarding the service discovery and providing services free-at-the-point-of-the-user.&lt;/p&gt;&lt;p&gt;OCRE started to grant EU research projects for using OCRE&amp;#8217;s procured Cloud commodity and EO services through respective open calls in 2019-2020. Additionally, in 2021 additional open calls are foreseen also for projects willing to receive funds for using EO services procured by the OCRE project. Also, a permanent open call for individual researchers is foreseen.&lt;/p&gt;&lt;p&gt;During 2020, OCRE also funded, through another open call, EU projects dealing with research related to COVID-19 and they were the first projects that started the usage of the available commodity services. Additionally, in 2020, the OCRE project closed and awarded EU service providers for the provision of cloud and commodity services and, in early 2021, the Dynamic Purchasing System (DPS) for the procurement of EO services will be opened.&lt;/p&gt;&lt;p&gt;Additionally, during 2020 an External Advisory Board (EAB) was created to assist OCRE in the project awarding process. The EAB is formed by recognized experts from different domains providing OCRE with the balanced knowledge needed to ensure transparency and equality in such an important process.&lt;/p&gt;&lt;p&gt;This presentation will provide an overview of the possibilities offered by OCRE to researchers interested in boosting their activities using commercial cloud services.&lt;/p&gt;


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