Situational Enterprise Services

The ability to rapidly find potential business partners as well as rapidly set up a collaborative business process is desirable in the face of market turbulence. Collaborative business processes are increasingly dependent on the integration of business information systems. Traditional linking of business processes has a large ad hoc character. Implementing situational enterprise services in an appropriate way will deliver the business more flexibility, adaptability and agility. Service-oriented architectures (SOA) are rapidly becoming the dominant computing paradigm. It is now being embraced by organizations everywhere as the key to business agility. Web 2.0 technologies such as AJAX on the other hand provide good user interactions for successful service discovery, selection, adaptation, invocation and service construction. They also balance automatic integration of services and human interactions, disconnecting content from presentation in the delivery of the service. Another Web technology, such as semantic Web, makes automatic service discovery, mediation and composition possible. Integrating SOA, Web 2.0 Technologies and Semantic Web into a service-oriented virtual enterprise connects business processes in a much more horizontal fashion. To be able run these services consistently across the enterprise, an enterprise infrastructure that provides enterprise architecture and security foundation is necessary. The world is constantly changing. So does the business environment. An agile enterprise needs to be able to quickly and cost-effectively change how it does business and who it does business with. Knowing, adapting to diffident situations is an important aspect of today’s business environment. The changes in an operating environment can happen implicitly and explicitly. The changes can be caused by different factors in the application domain. Changes can also happen for the purpose of organizing information in a better way. Changes can be further made according to the users' needs such as incorporating additional functionalities. Handling and managing diffident situations of service-oriented enterprises are important aspects of business environment. In the chapter, we will investigate how to apply new Web technologies to develop, deploy and executing enterprise services

Enterprise application reuse: Semantic discovery of business grid services

Web services have emerged as a prominent paradigm for the development of distributed software systems as they provide the potential for software to be modularized in a way that functionality can be described, discovered and deployed in a platform independent manner over a network (e.g., intranets, extranets and the Internet). This paper examines an extension of this paradigm to encompass ‘Grid Services’, which enables software capabilities to be recast with an operational focus and support a heterogeneous mix of business software and data, termed a Business Grid - "the grid of semantic services". The current industrial representation of services is predominantly syntactic however, lacking the fundamental semantic underpinnings required to fulfill the goals of any semantically-oriented Grid. Consequently, the use of semantic technology in support of business software heterogeneity is investigated as a likely tool to support a diverse and distributed software inventory and user. Service discovery architecture is therefore developed that is (a) distributed in form, (2) supports distributed service knowledge and (3) automatically extends service knowledge (as greater descriptive precision is inferred from the operating application system). This discovery engine is used to execute several real-word scenarios in order to develop and test a framework for engineering such grid service knowledge. The examples presented comprise software components taken from a group of Investment Banking systems. Resulting from the research is a framework for engineering servic

Web-Services - The Next Evolutionary Stage of E-Business

Web-Services are a set of new technologies that promise to take service-oriented distributed computing to a whole new level, and eventually take e-business to the next evolutionary stage. Web-Services, in a nutshell, let organizations bridge communication gaps among their information systems, and build new software applications by stitching together existing ones. It is capable of integrating applications written in different programming languages, developed by different vendors, and running on different servers with dissimilar operating systems. Web- Services would enable companies to seamlessly connect their information systems and business processes with those of their partners and customers - thus ushering in a new service oriented distributed computing architecture. The purpose of this paper is to explore the nature of Web-Services, explain the essential concepts that enable Web- Services, and understand its major benefits and point out its shortcomings

A Service-Oriented Operating System and an Application Development Infrastructure for Distributed Embedded Systems

The paradigm of service-orientation promises a significant ease of use in creating and managing distributed software systems. A very important aspect here is that also application domain experts and stakeholders, who are not necessarily skilled in computer programming, get a chance to create, analyze, and adapt distributed applications. However, up to now, service-oriented architectures have been mainly discussed in the context of complex business applications. In this paper we will investigate how to transfer the benefits of a service-oriented architecture into the field of embedded systems, so that this technology gets accessible to a much wider range of users. As an example, we will demonstrate this scheme for sensor network applications. In order to address the problem of limited device resources we will introduce a minimal operating system for such devices. It organizes all pieces of code running on a sensor node in a service-oriented fashion and also features the relocation of code to a different node at runtime. We will demonstrate that it is possible to design a sensor network application from a set of already existing services in a highly modular way by employing already existing technologies and standards

Student Information System Based on Service Oriented Architecture

Information system has become essential in every organization to ensure that the business processes are managed systematically and effectively. The information must be reliable in order to preserve the quality of the information. However, with the drastic evolution of technologies and business environments, the system is facing many challenges to sustain functionalities and the integration of the system’s applications between various types of machines. To cope-up with the changing technologies, organizations have to make some investments to upgrade their information systems to ensure the systems will keep on working in a long time-span. Some organizations have to redo the whole system to keep in pace with the latest technologies. This work has consumed so much time and the cost is quiet expensive. In this project, Student Information System Based on Service Oriented Architecture is developed. The system is implementing the Web Service technologies to create loosely-coupled applications.Web Service technologies have the capabilities of integrating various kinds of applications regardless of their technologies, operating systems and programming languages. In developing the system, Service Oriented Modeling Architecture is used. The Web Service is developed using Java programming language and Microsoft SQL Server 2005 for its back-end database

Interoperability for Industrial Internet of Things Based on Service-oriented Architecture

The new Industry 4.0 envisions a future for agile and effective integration of the physical operational technologies (OT) and the cyber information technologies (IT) as well as autonomous cooperation among them. However, the wide variety and heterogeneity of industrial systems and field devices -especially on the factory floor - increase integration complexity. To address these challenges, new technologies and concepts such as the Industrial Internet of Things (IIoT), Service-oriented Architecture (SoA), Semantic Technologies, Machine Learning and Artificial Intelligence are being introduced to the industrial environment. In this paper, we focus on how industrial automation systems and field devices can be integrated into the IIoT framework and coordinated to adapt to dynamic operating environment. Specifically, this paper proposed an interoperability solution that makes use of SoA and Semantic Technologies to achieve supervised coordination of IIoT application systems. To illustrate the potential of this approach, the Service-oriented Architecture-based Arrowhead Framework is used as the fundamental framework for the implementation of the approach.acceptedVersio

RestFS: The Filesystem as a Connector Abstraction for Flexible Resource and Service Composition

The broader context for this chapter comprises business scenarios requiring resource and/or service composition, such as (intra-company) enterprise application integration (EAI) and (inter-company) web service orchestration. The resources and services involved vary widely in terms of the protocols they support, which typically fall into remote procedure call (RPC)~\citeBirrell84implementingremote, resource-oriented (HTTP~\citeFielding96hypertexttransfer and WEBDAV~\citewebdav) and message-oriented protocols. By recognizing the similarity between web-based resources and the kind of resources exposed in the form of filesystems in operating systems, we have found it feasible to map the former to the latter using a uniform, configurable connector layer. Once a remote resource has been exposed in the form of a local filesystem, one can access the resource programmatically using the operating system\textquoterights standard filesystem application programming interface (API). Taking this idea one step further, one can then aggregate or otherwise orchestrate two or more remote resources using the same standard API. Filesystem APIs are available in all major operating systems. Some of those, most notably, all flavors of UNIX including GNU/Linux, have a rich collection of small, flexible command-line utilities, as well as various inter-process communication (IPC) mechanisms. These tools can be used in scripts and programs that compose the various underlying resources in powerful ways. Further explorations of the role of a filesystem-based connector layer in the enterprise application architecture have lead us to the question whether one can achieve a fully compositional, arbitrarily deep hierarchical architecture by re-exposing the aggregated resources as a single, composite resource that, in turn, can be accessed in the same form as the original resources. This is indeed possible in two flavors: 1) the composite resource can be exposed internally as a filesystem for further local composition; 2) the composite resource is exposed externally as a restful resource for further external composition. We expect the ability hierarchically to compose resources to facilitate the construction of complex, robust resource- and service-oriented software systems, and we hope that concrete case studies will further substantiate our position

Service Oriented Architecture in Network Security - a novel Organisation in Security Systems

Current network security systems are a collection of various security components, which are directly installed in the operating system. These check the whole node for suspicious behaviour. Armouring intrusions e.g. have the ability to hide themselves from being checked. We present in this paper an alternative organisation of security systems. The node is completely virtualized with current virtualization systems so that the operating system with applications and the security system is distinguished. The security system then checks the node from outside and the right security components are provided through a service oriented architecture. Due to the running in a virtual machine, the infected nodes can be halted, duplicated, and moved to other nodes for further analysis and legal aspects. This organisation is in this article analysed and a preliminary implementation showing promising results are discussed.Comment: 4 page