In both e-business and e-science, we often need to integrate services across distributed, heterogeneous, dynamic “virtual organizations” formed from the disparate resources within a single enterprise and/or from external resource sharing and service provider relationships. This integration can be technically challenging because of the need to achieve various qualities of service when running on top of different native platforms. We present an Open Grid Services Architecture that addresses these challenges. Building on concepts and technologies from the Grid and Web services communities, this architecture defines a uniform exposed service semantics (the Grid service); defines standard mechanisms for creating, naming, and discovering transient Grid service instances; provides location transparency and multiple protocol bindings for service instances; and supports integration with underlying native platform facilities. The Open Grid Services Architecture also defines, in terms of Web Services Description Language (WSDL) interfaces and associated conventions, mechanisms required for creating and composing sophisticated distributed systems, including lifetime management, change management, and notification. Service bindings can support reliable invocation, authentication, authorization, and delegation, if required. Our presentation complements an earlier foundational article, “The Anatomy of the Grid,” by describing how Grid mechanisms can implement a service-oriented architecture, explaining how Grid functionality can be incorporated into a Web services framework, and illustrating how our architecture can be applied within commercial computing as a basis for distributed system integration—within and across organizational domains. This is a DRAFT document and continues to be revised. The latest version can be found at http://www.globus.org/research/papers/ogsa.pdf. Please send comments to foster@mcs.anl.gov, carl@isi.edu, jnick@us.ibm.com, tuecke@mcs.anl.gov Physiology of the Grid 2

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The Physiology of the Grid An Open Grid Services Architecture for Distributed Systems Integration

Methods and systems consistent with the present invention provide a data processing system having a business object model reflecting the data used during a business transaction. Consistent interfaces are generated from the business object model. These interfaces are suitable for use across industries, across businesses, and across different departments within a business during a business transaction.

Consistent set of interfaces derived from a business object model

A flow processing facility, which uses a set of artificial neurons for pattern recognition, such as a self-organizing map, in order to provide security and protection to a computer or computer system supports unified threat management based at least in part on patterns relevant to a variety of types of threats that relate to computer systems, including computer networks. Flow processing for switching, security, and other network applications, including a facility that processes a data flow to address patterns relevant to a variety of conditions are directed at internal network security, virtualization, and web connection security. A flow processing facility for inspecting payloads of network traffic packets detects security threats and intrusions across accessible layers of the IP-stack by applying content matching and behavioral anomaly detection techniques based on regular expression matching and self-organizing maps. Exposing threats and intrusions within packet payload at or near real-time rates enhances network security from both external and internal sources while ensuring security policy is rigorously applied to data and system resources. Intrusion Detection and Protection (IDP) is provided by a flow processing facility that processes a data flow to address patterns relevant to a variety of types of network and data integrity threats that relate to computer systems, including computer networks.

Systems and methods for processing data flows

https://aprender.ead.unb.br/pluginfile.php/110249/mod_folder/content/0/Artigos%20descartados/ART_2009_Kim,%20Mirusmonov%20e%20Lee_An%20empirical%20examination%20of%20factors%20influencing%20the%20intention%20to%20use%20mobile%20payment.pdf?forcedownload=1

An empirical examination of factors influencing the intention to use mobile payment

This paper presents a framework for exploring issues in time-dependent planning: planning in which the time available to respond to predicted events varies, and the decision making required to formulate effective responses is complex. Our analysis of time-dependent planning suggests an approach based on a class of algorithms that we call anytime algorithms. Anytime algorithms can be interrupted at any point during computation to return a result whose utility is a function of computation time. We explore methods for solving time-dependent planning problems based on the properties of anytime algorithms.

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An analysis of time-dependent planning

Techniques are provided for discovering services available in accordance with an information network. For example, the invention provides methods and apparatus for dynamic service discovery from at least one chain of one or more service description documents employing one or more of automatic change detection of the chain, result aggregation and caching capability. The invention enables businesses to easily retrieve up-to-date web services linked and nested multi-level deep in the service description documents.

Methods and apparatus for dynamic service discovery from Web services representation chain

Exploring appropriate business applications published as Web Services in UDDI registries is a critical issue. Search for such applications should be effective in terms of time and uniformed in terms of interfaces. In this paper, an XML-based advanced UDDI exploring engine, Business Explorer for Web Services (BE4WS), that provides developers with standard interfaces for efficiently searching business and service information in single or multiple UDDI registries is presented. The engine processes the proposed UDDI Search Markup Language (USML) that specifies a search request comprising multiple queries, UDDI sources, search criteria, and aggregation operator. The core component of BE4WS, Advanced UDDI Search Engine (AUSE), aggregates search results from different UDDI registries based on the USML request and built-in intelligent search facilities with the ability to cross-reference multiple categories. An aggregation example using BE4WS is demonstrated to enable easy B2B integration.

XML-Based Advanced UDDI Search Mechanism for B2B Integration

Several preemptive, priority-driven algorithms for scheduling periodic jobs on systems that support imprecise computations are described and evaluated. The algorithms are designed to keep the average error in the results produced over consecutive periods small. The approach taken here is to consider each task as consisting of two parts: a mandatory part that must be completed in order for the task to produce an acceptable result, and an optional part that refines the result produced by the mandatory part to reduce the error in the result. The mandatory parts of all tasks have hard deadlines; the rate-monotone algorithm is used to schedule them to meet all deadlines. The optional parts have soft deadlines; different algorithms are used to schedule the optional parts to minimize the average error. The performance of these algorithms is evaluated in terms of the average error over all jobs as a function of their total utilization factor. >

Algorithms for scheduling periodic jobs to minimize average error

The evolution of software has been accelerating this decade due to the rapid change of the global business environment. Business requires more agile and flexible software systems which can be easily and swiftly customised to meet its changing demands. One of the solutions for this challenge is to shorten the software development process by composing relevant and reliable software components or services to provide required application functionalities. Meanwhile, an evolutionary computing paradigm named service-oriented architecture (SOA) is also emerging to provide architectural solution for business and it has attracted great attention from both industry and research communities due to its promise of achieving innovative business value by minimizing the gap between software systems developments and the way business operates. Since SOA is an emerging paradigm and it is still evolving, its nature and potential are not yet fully realised by research communities at present. From a conceptualized perspective, a service is the non-material equivalent of tangible goods which, in this context, can be interpreted as a repeatable business task e.g. checking customer’s credit, opening a new account, etc. Service-orientation is a way to integrate business as linked services which bring about the desired outcomes, and a service-oriented application is a set of orchestrated services that support a business process built on an SOA. Therefore, SOA can be viewed as an IT architectural style that

A view on service-oriented architecture

In the past few years, we witnessed a rapid progress in service-oriented computing (SOC), which represents a new computing paradigm. SOC changes the way we develop and use software and hardware. Major enabling techniques, including service-oriented architecture (SOA), service-oriented enterprise (SOE), service-oriented infrastructure (SOI), Web services (WS), and associated protocols and standards are being established. This paper focuses on the system engineering issues and how these engineering issues manifested in SOA development processes. SOSE differs from traditional system engineering because it emphasizes on reusability, dynamic and adaptive nature, and unique model-driven approach.

Jen-Yao Chung

Papers

Methods and apparatus for dynamic service discovery from Web services representation chain

XML-Based Advanced UDDI Search Mechanism for B2B Integration

Algorithms for scheduling periodic jobs to minimize average error

A view on service-oriented architecture

Service-oriented system engineering (SOSE) and its applications to embedded system development