129,014 research outputs found
An integrated approach to supply chain risk analysis
Despite the increasing attention that supply chain risk management is receiving by both researchers and practitioners, companies still lack a risk culture. Moreover, risk management approaches are either too general or require pieces of information not regularly recorded by organisations. This work develops a risk identification and analysis methodology that integrates widely adopted supply chain and risk management tools. In particular, process analysis is performed by means of the standard framework provided by the Supply Chain Operations Reference Model, the risk identification and analysis tasks are accomplished by applying the Risk Breakdown Structure and the Risk Breakdown Matrix, and the effects of risk occurrence on activities are assessed by indicators that are already measured by companies in order to monitor their performances. In such a way, the framework contributes to increase companies' awareness and communication about risk, which are essential components of the management of modern supply chains. A base case has been developed by applying the proposed approach to a hypothetical manufacturing supply chain. An in-depth validation will be carried out to improve the methodology and further demonstrate its benefits and limitations. Future research will extend the framework to include the understanding of the multiple effects of risky events on different processe
RISKS IN DEVELOPMENT OF VERY LARGE DATA SETS ORIENTED APPLICATIONS
Very large data sets are defined. The features of the online operation with large data sets are described. A risk classification and analysis is made in working with large data sets oriented software. Experimental results are presented.large data sets, risk, online operation
Dynamic and Transparent Analysis of Commodity Production Systems
We propose a framework that provides a programming interface to perform
complex dynamic system-level analyses of deployed production systems. By
leveraging hardware support for virtualization available nowadays on all
commodity machines, our framework is completely transparent to the system under
analysis and it guarantees isolation of the analysis tools running on its top.
Thus, the internals of the kernel of the running system needs not to be
modified and the whole platform runs unaware of the framework. Moreover, errors
in the analysis tools do not affect the running system and the framework. This
is accomplished by installing a minimalistic virtual machine monitor and
migrating the system, as it runs, into a virtual machine. In order to
demonstrate the potentials of our framework we developed an interactive kernel
debugger, nicknamed HyperDbg. HyperDbg can be used to debug any critical kernel
component, and even to single step the execution of exception and interrupt
handlers.Comment: 10 pages, To appear in the 25th IEEE/ACM International Conference on
Automated Software Engineering, Antwerp, Belgium, 20-24 September 201
Enterprise model verification and validation : an approach
This article presents a verification and validation approach which is used here in order to complete the classical tool box the industrial user may utilize in enterprise modeling and integration domain. This approach, which has been defined independently from any application domain is based on several formal concepts and tools presented in this paper. These concepts are property concepts, property reference matrix, properties graphs, enterprise modeling domain ontology, conceptual graphs and formal reasoning mechanisms
Knowledge-Intensive Processes: Characteristics, Requirements and Analysis of Contemporary Approaches
Engineering of knowledge-intensive processes (KiPs) is far from being mastered, since they are genuinely knowledge- and data-centric, and require substantial flexibility, at both design- and run-time. In this work, starting from a scientific literature analysis in the area of KiPs and from three real-world domains and application scenarios, we provide a precise characterization of KiPs. Furthermore, we devise some general requirements related to KiPs management and execution. Such requirements contribute to the definition of an evaluation framework to assess current system support for KiPs. To this end, we present a critical analysis on a number of existing process-oriented approaches by discussing their efficacy against the requirements
Food supply chain network robustness : a literature review and research agenda
Today’s business environment is characterized by challenges of strong global competition where companies tend to achieve leanness and maximum responsiveness. However, lean supply chain networks (SCNs) become more vulnerable to all kind of disruptions. Food SCNs have to become robust, i.e. they should be able to continue to function in the event of disruption as well as in normal business environment. Current literature provides no explicit clarification related to robustness issue in food SCN context. This paper explores the meaning of SCN robustness and highlights further research direction
Prospects of a mathematical theory of human behavior in complex man-machine systems tasks
A hierarchy of human activities is derived by analyzing automobile driving in general terms. A structural description leads to a block diagram and a time-sharing computer analogy. The range of applicability of existing mathematical models is considered with respect to the hierarchy of human activities in actual complex tasks. Other mathematical tools so far not often applied to man machine systems are also discussed. The mathematical descriptions at least briefly considered here include utility, estimation, control, queueing, and fuzzy set theory as well as artificial intelligence techniques. Some thoughts are given as to how these methods might be integrated and how further work might be pursued
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