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This paper presents monitoring as a service for networked medical cyber-physical systems in the operating room based on the recent IEEE 11073 standards for interoperable medical device communication. Runtime Verification techniques are used to allow for a formal specification and verification. Based on the specification so called monitors are automatically synthesized. At runtime, the monitors observe...
When hydrologic scientists are looking for data to use in their data models relevant to their research area, they encounter a bottleneck when trying to collect relevant information, sometimes they might not know of all the available sources. Great Lakes Monitoring (GLM) collects data from 5 different state and federal agencies that take measurements on nutrients, geochemicals, contaminants, among...
This paper sketches a service-oriented and hierarchical queuing mechanism designed to manage radio buffers while delivering web services. The goal is avoid buffer overflow implementing a three-level queuing mechanism. The first level is the message queue which stores messages from user-facing services. At the second level, the messages are fragmented into IP packets which are stored in the packet...
The provisioning and exploitation at a global scale of environmental and geophysical data requires advanced automation and governance mechanisms that enable (meta)data interoperability but also the exchange of formalized scientific concepts and methods. In this paper we introduce recent efforts in such direction, based on scientific workflows and research objects as enablers of such vision. The former...
Paper presents a solution providing OPC UA connectivity from a common web user using web technologies. Integration of OPC UA with the web may represent an important contribution to enhance its interoperability, allowing integration with web applications, IoT and WoT. The main difference with the solutions available in literature is that user may have no knowledge of OPC UA standard. A web-based platform...
Tens of thousands of web applications are written in Flask, a Python-based web framework. Despite a rich ecosystem of extensions, there is none that supports the developer in gaining insight into the evolving performance of their service. In this paper, we introduce Flask Dashboard, a library that addresses this problem. We present the ease with which the library can be integrated in an already existing...
The emergence of many heterogeneous sensor systems on the Web has produced huge amounts of sensor data. This requires building the customized and automated processing methods, which can be formed by connecting the services on the Web. Based on the semantic Web services markup language named OWL-S, the algorithms for processing sensor data on the Web are represented as the service ontologies and become...
Technology nowadays is growing very rapidly, so many systems have been digitized. Most of the digitization of this system leads to the development of web-based systems, it's also combined with embedded systems, to create a system called Web of Things. Besides, digitalization will be very useful if applied to the public service system, one of which is the queuing system. In this research, we are making...
Agriculture cropland soil moisture information plays a significant role in the management of agricultural policy, food security, and food prices. For better utilizing and reusing the agricultural information and knowledge, US Departments of Agriculture (USDA) National Agricultural Statistics Service (NASS) monitors US crop soil moisture condition using weekly field observations for counties in 45...
Agricultural drought greatly impacts the crop yield. Monitoring agricultural drought can deliver critical information to farmers on when, where and how much to irrigate. However, precisely monitoring which requires many kinds of data sources and data fusion and mining is still a huge challenge for scientists. In recent years, many data sources like remote sensed hyperspectral images are released online...
Service oriented systems are highly dynamic systems composed of several web services. One of the most important challenges in service oriented systems is to deliver acceptable quality of service. For this purpose, it is required to monitor quality of service along different activities of service oriented system. Existing research focuses on specific activities but do not take into account all the...
Web services which allow the interoperability and communication of heterogeneous systems in the Web through Internet protocols, are also subject to attacks a well as destructive as sophisticated. Contrariwise, very few solutions exist to ensure the availability of Web services in the presence of these attacks. In order to tackle these issues, we propose a comprehensive and complete attack-tolerance...
Multi-tenant service-based systems (SBSs) have gained unprecedented prominence in recent years. Network-accessible Web services are composed in the form of business process to simultaneously fulfill multiple tenants' functional and multi-dimensional quality-of-service (QoS) requirements. Those services often operate in a distributed and volatile environment. It is of tremendous importance to monitor...
The paper presents a web-based platform able to offer access to one or more OPC UA Servers. The proposed platform may be used by web-users to exchange data with OPC UA Server without any knowledge of the standard. The software solution described in the paper is available on GitHub.
The efforts and findings of the last decades of research on the formalization and the verification of Web services have given a certain level of assurance on Web services. However new challenges such as high availability and security issues are not fully addressed. In fact, Web services are exposed to attacks that appear continuously. These issues have naturally paved the way to a new research topic...
Service monitoring is an important research problem in service-based systems (SBSs), which aims to monitor the failure of services in a timely manner while using resources as few as possible. Most of the existing service monitoring approaches are centralised which suffer the potential of single point of failure and are not suitable in distributed large scale SBSs. Moreover, these centralised monitoring...
Nowadays, web service provisioning on mobile devices has become a high demand due to the improvement in mobile device capabilities and web service technologies. In this paper we present a RESTful-based framework for Mobile Web service migration and provisioning on both Android-based mobile devices and Java-based stationary devices in P2P wireless network. The proposed Web service migration framework...
Hypertension is a chronic disease characterized by high blood pressure levels. Lack of adherence to the treatment of hypertension is a growing concern among health professionals. For this, m-Health solutions are increasingly evident, since they can automate processes and facilitate the inclusion of the patient's health conditions in a practical way and in any place, allowing the health professional...
In this paper we present a system architecture for trust management inspired by a human model for the evaluation of trust. We focus on large-scale marketplaces for diverse software resources and services. In such marketplaces, user agents (consumer, provider and broker) are largely autonomous with vastly diverse requirements, capabilities, and trust preferences. We hypothesize the need for personalized...
This paper proposes a system integrating device manager, IoT Solution, and Business Process Model and Notation (BPMN) tools. With these tools, domain expert can draw the process with specifying how to connect devices all together. Moreover, domain expert can specify what kind of device is needed instead of explicitly specifying which device is needed, which addresses the IoT feature, mobility. This...
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