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Today's supply chain (SC) is highly complex and inter-connected so disruption at one company can propagate to other companies in an unexpected manner. However, most approaches in the area of risk management provide only static analysis of the SC risk but not the propagation of disruption through the SC network. Thus, in this paper, we propose a time-based model that quantifies the magnitude of the...
This paper describes a decision support system (DSS) built on knowledge extraction using simulation-based optimization and data mining. The paper starts with a requirements analysis based on a survey conducted with a number of industrial companies about their practices of using simulations for decision support. Based upon the analysis, a new, interactive DSS that can fulfill the industrial requirements,...
This present paper focuses on the mitigation of uncertainty-driven cost increases specific to the sourcing of transportation services, impacted by spot price volatility, uncertainty of demand and unreliability of carriers. We investigate the value of a specific mitigation strategy, namely the possibility to contract an alternative carrier (AC), which would take care of extra/emergency shipments, at...
Cloud computing is an internet based computing, providing the on demand services through the internet such as servers, storage disk, different platforms and applications to any business level company or organization. The cloud computing services are ‘Pay based on usage’ based on the agreement between Service Provider of the Cloud and customer. Service Level Agreement(SLA) is a contract, contracted...
Model-Driven Engineering (MDE) promises to enhance system development by reducing development time, and increasing productivity and quality. MDE is gaining popularity in several industry sectors, and is attractive also for critical systems where they can reduce efforts and costs for verification and validation (V&V), and can ease certification. Incorporating model-driven techniques into a legacy...
In the requirements definition phase, conceptual models are used to understand the developing software. Although scenarios are often described on the basis of conceptual models, there are cases that necessary requirements are omitted in the scenarios when the scenarios are created manually. Herein we propose an approach to support scenario creation from conceptual models where event lists of scenarios,...
This paper reports on a case study that was conducted in a cloud High Performance Computing (HPC) project one that used very sensitive and confidential data. The study aimed to explore the security challenges and practicalities that occur within a cloud HPC project and to develop a method for making critical security decisions. Action research was used to examine the nuances throughout the project...
This paper is devoted to the cloud computing model and the opportunities and challenges connected with its utilization by business organizations, including the most significant issues related to the cloud migration strategy. It is composed of five parts. In the first, some facts concerning cloud computing as a new technology and the reasons for organizations using this type of computing model are...
In order to process very large graphs, existing graph processing systems, such as Pregel and Giraph, usually partition and distribute the graph computation on large number of nodes (i.e., workers). However, due to the heterogeneity of computing clusters (e.g., nodes with various bandwidth or CPU resource), blindly increasing the number of workers for a job may even degrade the overall performance...
We present a framework for the analysis of corporate governance problems using network science and graph algorithms on ownership networks. In such networks, nodes model companies/shareholders and edges model shares owned. Inspired by the widespread pyramidal organization of corporate groups of companies, we model ownership networks as layered graphs, and exploit the layered structure to design feasible...
Project size, as measured by the amount of investment required, is a relevant parameter to be used in project selection. The evaluation of a project portfolio must consider the variety of project sizes that may be met, so that a proper model should be adopted to describe that variety, especially for its use in simulation. In this paper, a log-normal probability model is suggested to describe the dispersion...
We present results from a simulation study, which was designed for investigating the potential positive impacts, i.e., The invoicing and processing time, and financial savings, when using an electronic waybill instead of paper waybills for road-based freight transportation. The simulation model is implemented in an experiment for three different scenarios, where the processing time for waybills at...
Despite many years of research, alignment of business and IT services remains a challenge. In this paper we show how to verify the quantitative properties of a service against stakeholder requirements during service design. We model the service with the Systemic Enterprise Architecture Method (SEAM). This allows us to specify the service alignment constraints with what we call a feasibility constraint...
As the cloud computing is being adopted by users, the alignment of cloud computing is receiving increasing attention from researchers. On the basis of related theories about organizational fit of Information Technology (IT), this paper constructed a theoretical model to analyze factors affecting the cloud computing alignment in companies. In this model, task-technology fit and technology-organization...
This paper is focusing on designing of a pitot-static instruments test system for aircraft using a personal computer. Pitot-static pressure was acquired using data acquisition system then sent to the computer. Then the computer calculates the corresponding values of true airspeed, indicated airspeed, vertical speed, altitude, and Mach number according to mathematical models. These values are displayed...
In the past (classical supply chain) the supply of goods generally flow starts from factory or producer, then producer sent to a storage area called the warehouse. When finished goods are collected, the goods from storage area or warehouse (WH) is distributed to the distribution center (DC). Then after the goods were placed in the Distribution center, then the goods are shipped to the retailer (retailer)...
The research of stare is useful for country and people. A space share rising statistical parallel model is built by using statistical theory. The formula of correlation between stock prices is given. The regression equation with space coordination is obtained.
The fast pace of change in high technology product development requires high flexibility and adaptation in product design and technology management. Within this context, appropriate learning environments are planned to shape future Information and Communication Technology staff in such a way they could get able to keep up with new trends and innovations. A constructivist educational model based on...
This paper introduces a nutshell of the cloud computing with its different deployment and delivery models. Additionally, it presents an assessment of the impact of the cloud computing on the organizational performance from many points of view.
Cloud computing as a potential paradigm offers tremendous advantages to enterprises. With the cloud computing, the market's entrance time is reduced, computing capabilities is augmented and computing power is really limitless. Usually, to use the full power of cloud computing, cloud users has to rely on external cloud service provider for managing their data. Nevertheless, the management of data and...
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