Enabling Quality of Geospatial Web Services

Author(s):  
Richard Onchaga Moses

Following concerted efforts in service chaining and increased maturity of requisite technologies, the potential of geospatial web services in mission-critical applications and business processes is increasingly becoming apparent. Use of geospatial web services in mission-critical applications and business processes nonetheless raises important quality concerns for which guarantees should be provided. As a contribution to the subject of quality of geospatial web services, this chapter identifies and elaborates quality concerns pertinent to geospatial web services and their use in mission critical applications and business processes. The chapter defines a quality model for geospatial web services comprising data quality and quality of service. Quality propagation is outlined and the influence of quality of input data and that of component geospatial web services in a service chain on the quality deliverable end-to-end illustrated. Further, an ontology framework for quality of geospatial web services is presented. The framework comprises an upper ontology, two domain ontologies and potentially many application ontologies. Collectively, the ontologies provide a consistent set of concepts that can be used to unambiguously define and reason about quality of geospatial web services. The chapter also proposes a domain middleware to facilitate efficient and cost-effective quality-aware chaining of geospatial web services. The service design and high-level architecture for the middleware are presented.

Author(s):  
Ljudmila Neshchadym ◽  
Svetlana Тymchuk

The article monitors and analyzes the main strategies for the development of hotel and restaurant enterprises and, accordingly, increase their efficiency and competitiveness; the process of organization and economic planning of hotel and restaurant enterprises has been improved. It is investigated that the enterprises of hotel and restaurant industry of Ukraine partially provide the necessary quality indicators for the provided services, and this is the reason for the insufficient level of competitiveness of services in the domestic market and in European countries. An urgent problem of planning and organizing the activities of hotel and restaurant enterprises is the use of innovative strategies and areas of long-term development to increase the level of competitiveness and quality of services provided. This will intensify innovation processes in Ukraine in the field of services. Innovative strategies and promising areas of development of hotel and restaurant enterprises are extremely important in the management of hotel and restaurant complexes. Innovative strategies in the hotel and restaurant industry are cost-effective and feasible provided a high level of profitability, improving the service process, expanding the range of services, reducing costs, increasing competitiveness, improve and optimize the work of all hotel or restaurant services. The application of innovative strategies in the process of hotel and restaurant enterprises allows them to compete in the field of service. In conditions of fierce competition and rapidly changing market conditions, it is very important not only to focus on the internal state of affairs of the enterprise, but also to develop a long-term strategy. Economic activity requires constant innovation. All services offered by hotel and restaurant enterprises must be introduced in modern innovative ways. This is the basis for successful business, maintaining a consistently high level of competitiveness and improving the quality of service. The selection of the optimal innovation strategy for a hotel or restaurant company is carried out by its management based on the analysis of key factors that characterize its condition and the state of the product portfolio.


Author(s):  
Ghazi Alkhatib ◽  
Zakaria Maamar

Nowadays, Web services are emerging as a major technology for achieving automated interactions between distributed and heterogeneous applications (Benatallah, Sheng, & Dumas, 2003). Various technologies are behind this achievement including WSDL, UDDI, and SOAP1. (Curbera, Duftler, Khalaf et. al. 2002) These technologies aim at supporting the definition of services2, their advertisement, and their binding for triggering purposes. The advantages of Web services have already been demonstrated and highlight their capacity to be composed into high-level business process (Benatallah et al., 2003). Usually, composite services (CS) denote business processes and are meant to be offered to users who have needs to satisfy.


2013 ◽  
Vol 10 (11) ◽  
pp. 14535-14555
Author(s):  
L. Chen ◽  
Y. Zhong ◽  
G. Wei ◽  
Z. Shen

Abstract. The identification of priority management areas (PMAs) is essential for the control of non-point source (NPS) pollution, especially for a large-scale watershed. However, previous studies have typically focused on small-scale catchments adjacent to specific assessment points; thus, the interactions between multiple river points remain poorly understood. In this study, a multiple-assessment-point PMA (MAP-PMA) framework was proposed by integrating the upstream sources and the downstream transport aspects of NPS pollution. Based on the results, the integration of the upstream input changes was vital for the final PMAs map, especially for downstream areas. Contrary to conventional wisdom, this research recommended that the NPS pollutants could be best controlled among the upstream high-level PMAs when protecting the water quality of the entire watershed. The MAP-PMA framework provided a more cost-effective tool for the establishment of conservation practices, especially for a large-scale watershed.


2005 ◽  
Vol 40 (1) ◽  
pp. 59-70 ◽  
Author(s):  
Karl-Erich Lindenschmidt ◽  
Jan Rauberg ◽  
Fred B. Hesser

Abstract This paper illustrates the coupling of water quality model components in High Level Architecture (HLA), a computer architecture for constructing distributed simulations. HLA facilitates interoperability among different simulations and simulation types and promotes reuse of simulation software modules. It was originally developed for military applications but the platform is finding increasing applicability for civilian purposes. The models from the Water Quality Analysis Simulation Program (WASP5) were implemented in HLA to extend its Monte Carlo uncertainty analysis capabilities. The models include DYNHYD (hydrodynamics), EUTRO (phytoplankton and nutrient dynamics) and TOXI (sediment and micropollutant transport). The uncertainty analysis investigated the impact of errors in the hydrodynamic parameters (weir discharge and roughness coefficients) and boundary conditions (upstream and tributary discharge) on the uncertainty in the water quality output variables. It was found that the contribution of the hydrodynamic parameter error to the water quality output uncertainty is comparable to that obtained from the error in the water quality parameters. The error in the boundary condition input data is also an important contributor to model uncertainty.


2010 ◽  
pp. 2363-2377
Author(s):  
Bill Vassiliadis

Modern information systems are extending the traditional boundaries of organizations incorporating external recourses in the form of data and services. The need to support increasing client demands has led to dynamic and more complex business processes. Complex workflows in networked organizations are much more difficult to manage since traditional approaches are not suited for distributed environments. Service-Oriented approaches in the form of Web or Grid services bear the potential of increased performance and flexibility. In this work, we discuss the use of a relatively new computing paradigm that leverages distributed service-oriented business models: the Grid. We discuss how the Grid can facilitate efficient intra-business processes in highly dynamic virtual enterprises and present a high level architecture for managing complexity of business functions using Grid services.


Author(s):  
Lisandro Zambenedetti Granville ◽  
Ricardo Neisse ◽  
Ricardo Lemos Vianna ◽  
Tiago Fioreze

The management of telecommunication and data networks has been based on standards defined in historical contexts quite different than the current times. As a consequence, traditional management technologies are not able to address important challenges posed by the modern infrastructures. Web Services technologies enable the proper communication of processes deployed on quite hostile environments such as the Internet. The use of Web Services for management allows the integration of low-level activities (e.g., retrieving monitoring information from gateways) with high-level business processes (e.g., creating a new product and its marketing strategy.) Despite clear advantages, Web Services-based management does not come for free; since Web Services are based on XML documents, its performance, compared with traditional management technologies, may represent an important drawback. This chapter covers the aspects of using Web Services for management focusing on the different interactions between managers and devices and the performance associated with it.


2021 ◽  
Vol 5 (1) ◽  
pp. 27-44
Author(s):  
Jesús Robledano Arillo

Abstract This study aims to propose a quality control method for digitized versions of manuscript documents that will be relevant for paleographical and codicological analysis. The methodology applied consisted of a systematic review of papers related to automated analysis of the physical characteristics of handwritings and document supports in the field of digital paleography, as well as of the numerous standards that have been emerging in the field of image engineering for quality assessment in digital image recordings. We also worked with a sample of 275 digital representations of pages or double pages of manuscript documentation dating to between the 12th and 17th centuries. As a result of this study, we propose a taxonomy of physical attributes of the handwritings and of their documentary supports that must be represented in the digital image with a high level of fidelity and without any distortions that could lead scholars to erroneous interpretations of the physical and formal characteristics of the original documents. On the basis of this taxonomy, we identified a set of typical distortions caused by digitization processes that can affect the recording quality of the physical attributes previously proposed, as well as a set of parameters and metrics for measuring quality that can be used to create a sufficiently exhaustive quality model. We also detected a series of limitations which, if not properly managed, can compromise the effectiveness of these types of controls.


10.28945/2753 ◽  
2004 ◽  
Author(s):  
Youcef Baghdadi

This work proposes to use Web services to turn information into actions by leveraging and unlocking the informational assets of an organization. Indeed, Web services allow cost-effective composition and re-engineering of business processes because of their ability to connect applications, systems, and organization partners through the Internet-based standards (XML, SOAP, UDDI). The work consists of developing a process to generate interfaces to the knowledge in terms of information an organization possesses. These interfaces, implemented as Web services, are callable through the Internet. The proposed process is based on a new concept called factual dependency. Factual dependencies allow aggregations of attributes describing business objects and coordination artifacts that are affected by the same business events. Each resulting aggregation leads to a lowest level of granularity Web services. These Web services are then registered in a private or public UDDI to be discovered and (re)used at request to compose or re-engineer any internal or external business process. Unlike the approaches and tools that generate, in a spontaneous way or on a case-by-case basis, Web services from the complex and redundant elements of the information system, the proposed process generates Web services for the business objects and coordination artifacts as identified at the highest abstraction level of a business model. Indeed, the elements of the highest abstraction level that is the universe of discourse are unique and not redundant. The uniqueness and non-redundancy allows a generation, in a top-down-incremental approach with fewer analysts’ intuition, of a comprehensive set of Web services reflecting the actual and the potential activities of the organization.


Author(s):  
Yevheniia Kataieva ◽  
Svetlana Odokienko ◽  
Maya Luta ◽  
Yaroslav Savchenko

The success of any project is determined by its ability to meet the needs of the consumer, and therefore ensuring a high level of quality is a necessary task of any production, including software engineering. Insufficient quality of the created software requires many IT-organizations, up to 70% of the budget of the information system to reserve for the maintenance stage, with up to 60% of all software modifications performed to eliminate errors, and only the remaining 40% - to correct software within the business process, improvement certain indicators of software quality, or to prevent potential problems. Software quality is a complex concept. Standards highlight the quality of development processes, internal and external quality of the software product, the quality of the software product at the stage of use. For each of the components of quality can be called a set of metrics that determine the quality of the software product. The resulting structure is called the software quality model. Software metrics are a measure that allows you to get the numerical value of a property of software or its specifications, as well as the method of its calculation. Metrics allow you to get numeric values for each property of the software or its specifications. Of particular interest are software complexity metrics. Complexity is an important factor on which other parameters of software quality depend, such as accuracy, correctness, reliability, convenience of support. The existence of methods and algorithms for automatic calculation of software complexity metrics using software allows you to get a comprehensive formal report on the quality of software in a short time. This allows for objective monitoring of the quality of software throughout the project life cycle, make adjustments to the project plan, as well as make timely decisions about the need for refactoring.


2012 ◽  
Vol 3 (2) ◽  
pp. 39-54
Author(s):  
Menno Fenger

Academics as well as policy-makers consider social cohesion as an important quality of cities. A high level of social cohesion is associated with a wide variety of positive characteristics of cities: for instance low crime rates, high economic growth, low unemployment and happy citizens. This has lead to a wide variety of policy initiatives explicitly or implicitly aimed at increasing social cohesion. The perceived importance remarkably contrasts with the lack of a clear definition and a widely agreed-upon analytical framework. The lack of conceptual consensus may be explained by the complexity of the concept. It has multiple dimensions and can be found on different institutional levels: from the level of states to the level of local neighbourhoods. In this article I develop an analytical framework that builds upon these multi-dimensional and multi-level characteristics and connect this with an attempt to classify policies aimed at increasing social cohesion.


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