Risk management for traffic safety control

This paper offers a range of modelling ideas and techniques from mathematical statistics appropriate for analysing traffic accident data for the East region operation of CLP Power Hong Kong Limited and for the Hong Kong population in general. We further make proposals for alternative ways to record and collect data, and discuss ways to identify the major contributing factors behind accidents. We hope that our findings will enable the design of effective accident prevention strategies for CLP

Management of services differentiation and guarantee in IEEE 802.11e wireless LANs

In this paper, we study the management and control of service differentiation and guarantee based on enhanced distributed function coordination (EDCF) in IEEE 802.11e wireless LANs. Backoff-based priority schemes are the major mechanism for quality of service (QoS) provisioning in EDCF. However, control and management of the backoff-based priority scheme are still challenging problems. We have analysed the impacts of backoff and inter-frame space (IFS) parameters of EDCF on saturation throughput and service differentiation. A centralised QoS management and control scheme is proposed. The configuration of backoff parameters and admission control are studied in the management scheme. The special role of access point (AP) and the impact of traffic load are also considered in the scheme. The backoff parameters are adaptively re-configured to increase the levels of bandwidth guarantee and fairness on sharing bandwidth. The proposed management scheme is evaluated by OPNET. Simulation results show the effectiveness of the analytical model based admission control scheme

Managing NFV using SDN and control theory

Control theory and SDN (Software Defined Networking) are key components for NFV (Network Function Virtualization) deployment. However little has been done to use a control-theoretic approach for SDN and NFV management. In this paper, we describe a use case for NFV management using control theory and SDN. We use the management architecture of RINA (a clean-slate Recursive InterNetwork Architecture) to manage Virtual Network Function (VNF) instances over the GENI testbed. We deploy Snort, an Intrusion Detection System (IDS) as the VNF. Our network topology has source and destination hosts, multiple IDSes, an Open vSwitch (OVS) and an OpenFlow controller. A distributed management application running on RINA measures the state of the VNF instances and communicates this information to a Proportional Integral (PI) controller, which then provides load balancing information to the OpenFlow controller. The latter controller in turn updates traffic flow forwarding rules on the OVS switch, thus balancing load across the VNF instances. This paper demonstrates the benefits of using such a control-theoretic load balancing approach and the RINA management architecture in virtualized environments for NFV management. It also illustrates that GENI can easily support a wide range of SDN and NFV related experiments

The development of a strategic control framework and its relationship with management accounting

Management accounting systems have been criticised for being excessively focused on shortterm performance. As a result long-term strategic direction and goals may have been neglected. To help overcome this problem it has been suggested that organisations should adopt strategic management accounting techniques and management control systems which are orientated towards the achievement of strategic goals. This paper argues that integration with strategic control would significantly enhance the relevance of management accounting systems. In developing such an approach this paper first integrates the salient features of the extant strategic control models in a framework that recognises the needs of the current business environment. And second, it examines how strategic control could be used as the basis for developing management accounting systems that have a stronger strategic focus

Innovating Management Control by Dynamic Analysis of Pareto in a Hotel Business

This paper deals with the Pareto Analysis of problems observed and criticized by clients in a hotel establishment in the municipality of Porto Velho, capital of the State of Rondocirc;nia. The general objective of the research is to study the use of Pareto Analysis in these problems that annoy the clients; (1), to group the data in descending order of frequency and to calculate the cumulative values (2), and indicating innovation for managerial control through a tool for Pareto Analysis in a dynamical way (3). The methodology of the qualitative-quantitative approach, of an exploratory nature, is adopted; the bibliographic survey and the field research are applied in support of the case study. Through the database system that the company under study possesses, the data necessary to be used in the Pareto Analysis are obtained, completing the first specific objective; the grouping of these data in descending order of absolute frequency, the calculation of the cumulative values, the preparation of the Pareto Diagram and the analysis carried out successfully completed the second specific objective; and finally the study is finished with the creation of a tool that allows a more dynamic analysis of the scenario in which the company is inserted, as a proposal of innovation for the institution to perform its practical and dynamic analyzes, useful in decision making. This study is a contribution of the academy to managers who work with complex decisions in hotel or related establishments interested in customer satisfaction

Management Control and the Museums

For many years French museums have been undergoing numerous changes, both evolutionary and environmental. They now face an increasing need for more rigorous management whereby managers are given the means to establish new relations, to evolve and to adapt to their new environment, as well as the tools to function in their expanded role – in short, whatever resources are required to achieve their objectives. Management control is one means of responding to this necessary repositioning with all its attendant opportunities and constraints. This article presents the results of an investigation into the current situation in France and the management practices within French museums. Using a semi-structured interview method, the author researched several typical cases in order to understand how management control might be introduced into museums in France.Management control, museums, public management, culture, France

Management Control Systems : Germany and France facing the North American Model: some insights for research.

Corporate Governance and Management Control Systems are two research fields that are concerned to a certain degree with the same problems. Yet the literature in both fields takes rarely notice of each other and the relationship between them. In this paper we argue that Corporate Governance is supported by Management Control Systems. In order to understand their relationship we take a historical perspective. We compare the evolution of Management Control in Germany and France and relate it to the North American concept. We also stress the concept of community that influenced historically in Germany and France both Corporate Governance and Management Control. Finally, we look into the professionalisation of the management control function. As a conclusion, we propose further research into the path dependency of the interrelationsip between Corporate Governance and Management Control Systems.management control systems; France; Germany;

CONTROL – ESSENTIAL FACTOR OF ORGANISATIONAL PERFORMANCE

An important feature of the people – organisation relationship is the need for control. Control systems exist in all spheres of the operations of the organisation and are necessary part of the process of management. Control is concerned with ganging the measure of succes in achieving the goals and objectivers of the organisation. Control is an integral part of the process of management. The manager needs to understand the nature of power and control in order to improve organisational performance (Mullins, L.J. 1983). Management control is primarily a process for motivating and inspiring people to perform organization activities that will further the organization’s goals. It is also a process for detecting and correcting unintentional performance errors and intentional irregulariries, such as theft or misuse of resources (Berry, A.L., Broadbent, J., Otley, D. 1995).control, organizational performance, management control

Objectives, stimulus and feedback in signal control of road traffic

This article identifies the prospective role of a range of intelligent transport systems technologies for the signal control of road traffic. We discuss signal control within the context of traffic management and control in urban road networks and then present a control-theoretic formulation for it that distinguishes the various roles of detector data, objectives of optimization, and control feedback. By reference to this, we discuss the importance of different kinds of variability in traffic flows and review the state of knowledge in respect of control in the presence of different combinations of them. In light of this formulation and review, we identify a range of important possibilities for contributions to traffic management and control through traffic measurement and detection technology, and contemporary flexible optimization techniques that use various kinds of automated learning