scholarly journals Cloud Oriented Integrated Composite Services over SOA in Distributed Computing

2021 ◽  
Vol 10 (3) ◽  
pp. 52-58
Author(s):  
K. Sudhakar ◽  
M.James Stephen ◽  
P.V.G.D. Prasad Reddy
Keyword(s):  
Distributed Computing ◽  
Access Control ◽  
Execution Time ◽  
Service Oriented Architecture ◽  
Service Model ◽  
Composite Service ◽  
Service Oriented ◽  
Stream Control ◽  
Composite Services ◽  
Multi Level

Service-oriented architecture (SOA)[1] is an incessant term to deal with various administrations dependent on solicitations of various clients in various ongoing applications. Still, now, a few people don't have total information about what SOA really has done, they get confounded how SOA identifies with distributed computing. On account of cloud administration usage in SOA need security mindful help creation with finegrained stream control to make sure about web administrations at execution time to share various administrations to various clients in dispersed condition? Routinely various models were acquainted with investigating secure web administrations at execution of various administrations. Because of access control infringement, they will take high execution time and other leader boundaries profoundly, and furthermore they don't control access assurance arrangements in composite administrations, which may deliver bothersome information spillage. To conquer these infringement issues in SOA, we present Integrated Novel Multi-Level Composite Service Model (INMLCSM)[2] to lessen infringement calculation cost dependent on customer authentic and demonstrate customer composite administrations and furthermore perform nearby/distant strategy calculation for highest customers. We acquaint idea of change factor with characterize halfway administrations. Our proposed approach portrays forceful exploratory outcomes.

Achieving Dependable Composite Services through Two-Level Redundancy

2012 ◽  
pp. 295-316
Author(s):  
Hailong Sun ◽  
Jin Zeng ◽  
Huipeng Guo ◽  
Xudong Liu ◽  
Jinpeng Huai
Keyword(s):  
Business Process ◽  
Service Composition ◽  
Service Performance ◽  
Structural Redundancy ◽  
Composite Service ◽  
Service Oriented ◽  
Composite Services ◽  
Insightful Analysis ◽  
Process Level

Service composition is a widely accepted method to build service-oriented applications. However, due to the uncertainty of infrastructure environments, service performance and user requests, service composition faces a great challenge to guarantee the dependability of the corresponding composite services. In this chapter, we provide an insightful analysis of the dependability issue of composite services. And we present a solution based on two-level redundancy: component service redundancy and structural redundancy. With component service redundancy, we study how to determine the number of backup services and how to guarantee consistent dependability of a composite service. In addition, structural redundancy aims at further improving dependability at business process level through setting up backup execution paths.

Usage-Based Access Control for Cloud Applications

2016 ◽  
pp. 197-223 ◽  
Author(s):  
Yumna Ghazi ◽  
Rahat Masood ◽  
Muhammad Awais Shibli ◽  
Sara Khurshid
Keyword(s):  
Access Control ◽  
Service Oriented Architecture ◽  
Digital Rights Management ◽  
International Standards ◽  
Generation Model ◽  
Critical Data ◽  
Policy Languages ◽  
Service Oriented ◽  
Effective Development ◽  
Cloud Applications

The Cloud technology takes Service Oriented Architecture to the next level, where applications and infrastructure can be outsourced over the internet. It affords flexibility to businesses in terms of the on-demand scalability of services as well as the corresponding payment model. However, these advantages do not make up for the inherent security weaknesses in the Cloud. Among various concerns, Cloud providers struggle to provide adequate authorization mechanisms that would protect customer's critical data. In this regard, Usage Control (UCON) is considered to be the next generation model for digital rights management for all the service models of Cloud. Limited literature work exists on the UCON model; however, new tracks need to be laid out to make this model comply with international standards and policy languages. This chapter provides standardized UCON policy specifications, which will help in the effective development of access control for the Cloud environment.

DYNAMIC SERVICE COMPOSITION: A DISCOVERY-BASED APPROACH

2008 ◽  
Vol 18 (02) ◽  
pp. 199-222 ◽  
Author(s):  
JONATHAN LEE ◽  
SHANG-PIN MA ◽  
YING-YAN LIN ◽  
SHIN-JIE LEE ◽  
YAO-CHIANG WANG
Keyword(s):  
Service Composition ◽  
Service Discovery ◽  
Main Trend ◽  
Service Availability ◽  
Composite Service ◽  
Composite Pattern ◽  
Contract Net ◽  
Dynamic Service Composition ◽  
Service Oriented ◽  
Composite Services

Service-Orientated Computing (SOC) has become a main trend in software engineering that promotes the construction of applications based on the notion of services. SOC has recently attracted the researchers' attention and has been adopted industry-wide. However, service composition that enables one to aggregate existing services into a new composite service is still a highly complex and critical task in service-oriented technology. To enhance availability of composite services, we propose a discovery-based service composition framework to better integrate component services in both static and dynamic manner, including (1) to devise a notion of service availability especially for composition; (2) to develop a dynamic service composition (DSC) pattern for addressing the issues of service availability; and (3) to extend Contract Net Protocol (ECNP) to coordinate service discovery, composition and invocation based on the composite pattern. The main benefit of the proposed approach is better availability through attaching multiple candidate services for future binding.

TOWARDS SELF-ORGANIZING DISTRIBUTED COMPUTING FRAMEWORKS: THE H2O APPROACH

2003 ◽  
Vol 13 (02) ◽  
pp. 273-290 ◽  
Author(s):  
DAWID KURZYNIEC ◽  
TOMASZ WRZOSEK ◽  
DOMINIK DRZEWIECKI ◽  
VAIDY SUNDERAM
Keyword(s):  
Distributed Computing ◽  
Access Control ◽  
Resource Sharing ◽  
Value Added ◽  
Third Party ◽  
Minimal State ◽  
Framework Design ◽  
Control Schemes ◽  
Service Oriented ◽  
Self Organizing

A novel component-based, service-oriented framework for distributed metacomputing is described. Adopting a provider-centric view of resource sharing, this framework emphasizes lightweight software infrastructures that maintain minimal state, and interface to current and emerging distributed computing standards. In this model, resource owners host a software backplane onto which owners, clients, or third-party resellers may load components or component-suites that deliver value added services without compromising owner security or control. Standards-based descriptions of services facilitate publication and discovery via established schemes. The architecture of the container framework, design of components, security and access control schemes, and preliminary experiences are described in this paper.

A Dynamic Service-Oriented Distributed Computing Framework for Evaluation of Computationally Expensive Black-Box Analyses

2014 ◽  
Author(s):  
George H. Cheng ◽  
Chao Qi ◽  
G. Gary Wang
Keyword(s):  
Distributed Computing ◽  
Service Oriented Architecture ◽  
Experimental Testing ◽  
Black Box ◽  
Small Scale ◽  
Distributed Computing Networks ◽  
Service Oriented ◽  
Computationally Expensive ◽  
Computing Framework ◽  
Load Balancing Algorithm

A practical, flexible, versatile, and heterogeneous distributed computing framework is presented that simplifies the creation of small-scale local distributed computing networks for the execution of computationally expensive black-box analyses. The framework is called the Dynamic Service-oriented Optimization Computing Framework (DSOCF), and is designed to parallelize black-box computation to speed up optimization runs. It is developed in Java and leverages the Apache River project, which is a dynamic Service-Oriented Architecture (SOA). A roulette-based real-time load balancing algorithm is implemented that supports multiple users and balances against task priorities, which is superior to the rigid pre-set wall clock limits commonly seen in grid computing. The framework accounts for constraints on resources and incorporates a credit-based system to ensure fair usage and access to computing resources. Experimental testing results are shown to demonstrate the effectiveness of the framework.

Simulating adaptive service-oriented software systems

SIMULATION ◽  
2010 ◽  
Vol 87 (11) ◽  
pp. 915-931 ◽  
Author(s):  
Mohammed A Muqsith ◽  
Hessam S Sarjoughian ◽  
Dazhi Huang ◽  
Stephen S Yau
Keyword(s):  
Structural Changes ◽  
Service Oriented Architecture ◽  
Dynamic Structure ◽  
Software Systems ◽  
Service Model ◽  
Voice Communication ◽  
Simulation Based Design ◽  
Simulation Based ◽  
Service Oriented ◽  
Dynamic Services

Simulation of dynamic service-based software systems is important for studying services that may change their composition and thus interactions at run-time. An approach based on Service Oriented Architecture-compliant DEVS (SOAD) and Dynamic Structure DEVS (DSDEVS) modeling approaches is developed to support structural changes in service model composition. To achieve this goal, a broker–executive model is devised based on the broker model defined for SOAD and the executive model defined for DSDEVS. The capability to simulate dynamic services is incorporated to the DEVS-Suite simulator. To demonstrate modeling of dynamic service-based software systems, a real voice communication system and a model of this system have been developed. The importance of enabling simulation-based design for adaptable systems is briefly discussed.

An Approach Based on Service Components for Adapting Web-Oriented Applications

2016 ◽  
Vol 11 (1) ◽  
pp. 1-21 ◽  
Author(s):  
Soumia Bendekkoum ◽  
Mahmoud Boufaida ◽  
Lionel Seinturier
Keyword(s):  
Service Oriented Architecture ◽  
Business Services ◽  
Distributed Information ◽  
Execution Phase ◽  
New Business ◽  
Design Paradigm ◽  
Service Oriented ◽  
Composite Services ◽  
Service Components ◽  
Control Service

Service Oriented Architecture is a software design paradigm of choice for building and integrating distributed Information Systems. The greatest challenge of SOA is to make the system more flexible and adaptable to the enterprise and user environment changes. However, services can change constantly. These changes are produced due to adjustment in structure, e.g., changing service signature, integrating new services into existing business services; in behavior e.g., adding new business rules in simple or composite services; and in interaction schema between the services and the clients. This paper presents a solution based on service component concepts for dealing with changes confined to services and clients in SOA-based applications. It uses service components concepts to define adaptable services that facilitate the extension and the customization of existing services in harmony with service users. In addition, it presents an adaptation service-oriented lifecycle scenario to control service changes in the entire service lifecycle ranging from the announcement to the execution phase

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