Principles of information systems design for creation of thematic services based on integrated use of ground-aerospace data and modeling results

2020 ◽  
Vol 5 ◽  
pp. 163-168
Author(s):  
V.A. Zelentsov ◽  
◽  
A.S. Semenov

The paper describes an architecture and examples of information technologies and systems implementation for automating interdisciplinary projects accomplishment and creating thematic services that require utilizing Earth remote sensing data. It is proposed using approaches based on a service-oriented architecture, web services technologies, and technologies based on the Business Process Execution Language to organize the interaction of system components. Testing results show that the proposed approaches ensure achieving maximum automation of systems running, high reliability of the results, and user friendliness.

2018 ◽  
Vol 15 (4) ◽  
pp. 45-60
Author(s):  
Negar Abbasi ◽  
Ali Moeini ◽  
Taghi Javdani Gandomani

Identification of web service candidates in legacy software is a crucial process in the reengineering of legacy systems to service oriented architecture. Researchers have proposed various automatic and semi-automatic methods for this purpose, some of which have proved to be quite efficient, but there are still certain gaps which need to be addressed. This article discovers the strengths and weaknesses of previous methods and develops a method with improved service candidate identification performance. In this article, service identification is considered as a search and optimization problem and a firefly algorithm is developed accordingly to give high-quality solutions in reasonably short times. A filtering method is also developed to remove excess modules (false positives) from the algorithm outputs. A case study on a legacy flight reservation system demonstrates the high reliability of the outputs given by the proposed method.


Author(s):  
Mohamed Bendahmane ◽  
Brahim El Falaki ◽  
Mohammed Benattou

In most existing E-learning systems, activities' content and order are presented in a static manner without taking into consideration the learners characteristics, profiles or competencies. The challenge is to adapt and regulate learning processes according to the learner profile by applying learning models that use new information technologies. There are several adaptation approaches of E-learning environments, such as, adaptive hypermedia system, semantic web, etc. In our proposed system, we adopted a Competency Based Approach to offer each learner an individualized learning path for the acquisition of the competence targeted on the basis of the collaborative filtering. Concerning the technological aspect, the system is implemented as a web services while adhering to a service-oriented architecture. This allows interoperability with heterogeneous learning systems


2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Hossein Nematzadeh ◽  
Homayun Motameni ◽  
Radziah Mohamad ◽  
Zahra Nematzadeh

Workflow-based web service compositions (WB-WSCs) is one of the main composition categories in service oriented architecture (SOA). Eflow, polymorphic process model (PPM), and business process execution language (BPEL) are the main techniques of the category of WB-WSCs. Due to maturity of web services, measuring the quality of composite web services being developed by different techniques becomes one of the most important challenges in today’s web environments. Business should try to provide good quality regarding the customers’ requirements to a composed web service. Thus, quality of service (QoS) which refers to nonfunctional parameters is important to be measured since the quality degree of a certain web service composition could be achieved. This paper tried to find a deterministic analytical method for dependability and performance measurement using Colored Petri net (CPN) with explicit routing constructs and application of theory of probability. A computer tool called WSET was also developed for modeling and supporting QoS measurement through simulation.


2010 ◽  
Vol 20 (2) ◽  
pp. 65
Author(s):  
Ximena Velasco Melo ◽  
Óscar Mauricio Caicedo Rendón

<span>En telecomunicaciones la tendencia actual está dirigida hacia una búsqueda de la convergencia de redes fijas y móviles, y por lo tanto, las redes que se diseñan son más complejas. Así mismo, se presentan nuevos retos en el campo de la interconexión e integración de servicios a través de múltiples redes, tecnologías y áreas de negocio, lo cual hace imprescindible interoperar los servicios de las Tecnologías de Información (Information Technologies, IT ), con los de telecomunicaciones. Para aportar en la solución de estos retos y debido además, a la ausencia de un entorno de telecomunicaciones convergente y completamente adecuado para la prestación de servicios tradicionales y nuevos, en este artículo se presenta una arquitectura de referencia que permite la habilitación y entrega rápida de servicios convergentes para el mundo IT y el mundo de las Telecomunicaciones, con la mediación en la interacción de servicios basados en la Arquitectura Orientada a Servicios (Service Oriented Architecture, SOA), y el Subsistema Multimedia IP (IP Multimedia Subsystem, IMS ). La característica esencial del middleware, implementado en un Entorno de Ejecución de Lógica de Servicio (Service Logic Execution Environment, SLEE), consiste en que IMS utiliza a SOA para integrar sus propios elementos software con componentes externos y de esta manera, se logra la combinación de las facilidades de la Web y de IMS para exponer un conjunto de servicios enriquecidos para ambos mundos.</span>


Author(s):  
Suha Afaneh ◽  
Issam Al Hadid

This paper introduces the different aviation and airport information technology systems. Also, this paper provides Airport Enterprise Service Bus with Three Levels Self-Healing Architecture based on the Service Oriented Architecture (SOA) that improves the information accessibility and sharing across the different Airport’s departments, integrate the existing legacy systems with other applications, and improve and maximize the system’s reliability, adaptability, robustness and availability using the Self-Healing Agent, Virtual Web Service Self-Healing Connector and Extended Execution Engine with Process Execution Self-Healing Manager to guarantee the Quality of Service (QoS) or Service provided and business process execution.


Author(s):  
Pethuru Raj Chelliah

Hydrology is an increasingly data-intensive discipline and the key contribution of existing and emerging information technologies for the hydrology ecosystem is to smartly transform the water-specific data to information and to knowledge that can be easily picked up and used by various stakeholders and automated decision engines in order to forecast and forewarn the things to unfold. Attaining actionable and realistic insights in real-time dynamically out of both flowing as well as persisting data mountain is the primary goal for the aquatic industry. There are several promising technologies, processes, and products for facilitating this grand yet challenging objective. Business intelligence (BI) is the mainstream IT discipline representing a staggering variety of data transformation and synchronization, information extraction and knowledge engineering techniques. Another paradigm shift is the overwhelming adoption of service oriented architecture (SOA), which is a simplifying mechanism for effectively designing complex and mission-critical enterprise systems. Incidentally there is a cool convergence between the BI and SOA concepts. This is the stimulating foundation for the influential emergence of service oriented business intelligence (SOBI) paradigm, which is aptly recognized as the next-generation BI method. These improvisations deriving out of technological convergence and cluster calmly pervade to the ever-shining water industry too. That is, the bubbling synergy between service orientation and aquatic intelligence empowers the aquatic ecosystem significantly in extracting actionable insights from distributed and diverse data sources in real time through a host of robust and resilient infrastructures and practices. The realisable inputs and information being drawn from water-related data heap contribute enormously in achieving more with less and to guarantee enhanced safety and security for total human society. Especially as the green movement is taking shape across the globe, there is a definite push from different quarters on water and ecology professionals to contribute their mite immensely and immediately in permanently arresting the ecological degradation. In this chapter, we have set the context by incorporating some case studies that detail how SOA has been a tangible enabler of hydroinformatics. Further down, we have proceeded by explaining how SOA-sponsored integration concepts contribute towards integrating different data for creating unified and synchronized views and to put the solid and stimulating base for quickly deriving incisive and decisive insights in the form of hidden patterns, predictions, trends, associations, tips, etc. from the integrated and composite data. This enables real-time planning of appropriate countermeasures, tactics as well as strategies to put the derived in faster activation and actuation modes. Finally the idea is to close this chapter with an overview of how SOA celebrates in establishing adaptive, on-demand and versatile SOHI platforms. SOA is insisted as the chief technique for developing and deploying agile, adaptive, and on-demand hydrology intelligence platforms as a collection of interoperable, reusable, composable, and granular hydrology and technical services. The final section illustrates the reference architecture for the proposed SOHI platform.


2012 ◽  
pp. 102-125 ◽  
Author(s):  
Michael Gebhart

This chapter focuses on the identification and specification of services based on prior modeled business processes and legacy systems. The resulting service interfaces and service components formalized by using the Service oriented architecture Modeling Language (SoaML) describe the integration of legacy systems into a service-oriented application landscape. The legacy systems provide services for integration purposes and represent the implementations of service components. Additionally, the resulting architecture allows functionality of legacy systems to be replaced with functionality provided by external cloud services. According to model-driven development concepts, the formalized service interfaces and service components as part of the service designs can be used to automatically derive service interface descriptions using the Web Services Description Language (WSDL). These descriptions enable the technical integration of legacy systems. If necessary, service implementations based on the Service Component Architecture (SCA) and the Business Process Execution Language (BPEL) can be generated.


Author(s):  
Ing-Yi Chen ◽  
◽  
Guo-Kai Ni ◽  
Cheng-Hwa Kuo ◽  
Chau-Young Lin ◽  
...  

Exception handling is an important issue in dependable software computing. This paper presents a system architecture and explains the role of responsibility of each component that is introduced in the architecture. The design is used to ensure the constructed service-oriented applications remain in a stable state. Service-Oriented Architecture is a paradigm for constructing current enterprise applications. It uses service composition technology to induce existing service components to provide advanced services. The most important concept in this methodology is that of reusing existing components. Business Process Execution Language (BPEL) is widely used for achieving service composition, providing basic capability for developers to deal with faults using defined activities standard in BPEL. No sufficient design, however, supports developers in implementing fault-handling components efficiently. The architecture proposed in this paper provides the design approach to explain how to reuse the fault-handling components. Additionally, the paper also provides an empirical case study that illustrates how this design was used by the Chunghwa Telecom Company in an effort to improve efficiency in implementing fault-handling components and in constructing service-oriented applications. The number of fault-handling components required was reduced from 38 to 3, implying a 92.10% efficiency rate.


2010 ◽  
Vol 26-28 ◽  
pp. 1115-1118
Author(s):  
Zhi Jun Rong ◽  
Bao Sheng Ying ◽  
Bin Bin Dan

The recent advance in information technologies has the potential to greatly enhance product development, and to make distributed designers, engineers, manufacturers and customers work together over networks. This paper reviews related work on service-oriented architecture, distributed infrastructure and highlights the need to integrate service-oriented architecture technologies for meaningful and interactive collaborative design processes. This paper presents a service-oriented architecture implemented by web services for collaborative design. The collaborative workspace is presented to facilitate the design participants’ collaboration. The proposed architecture is applicable to different requirements of design participants and enhances design interaction during the product realization process.


Sign in / Sign up

Export Citation Format

Share Document