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• Decision Support for Difficulties in a Furniture Manufacturing Company

  405-418

  Krisztián Bakon

  Tibor Holczinger

  Views:

  103

  In “Decision support for difficulties in a furniture manufacturing company” titled work we are presenting in detail the operation of a particular furniture company and the difficulties encountered during its operation, which they try to overcome in some way so that they do not hinder the operation of the company. After that, we will show how we wanted to achieve the production support system. In different versions, we detail what we actually wanted to accomplish while showing results that illustrate the evolution of the system. We also present the difficulties of the development, which is made in Java. We also present the latest version of the system and its results. After processing the input parameters, the system is able to produce results using scheduling algorithms that can help in making important decisions during production planning.

• Technical Issues and Their Effect on the Financial and Time Scheduling of the Building Under Roof and/or Floor Upbuilding

  324-343

  Géza Lámer

  Views:

  96

  Building under roof and/or floor upbuilding raises technical issues different as one raise in the case of green investments. Primarily, depending of system of building constructions of the existing building there is a possibility to build under roof, and/or floor upbuilding. In the paper we review those technical issues, what decide, that in the case of given building there is or not possibility to build under roof, and/or floor upbuilding. We examine in general, that in the case of building under roof, and/or floor upbuilding what building process should be considered, and what kind of time and financial scheduling is advisable to prescribe. We will present a case study, that the inadequate processing of technical issues may require time and financial rescheduling.

• Analysis of Activity Times in the Process of a Wooden Box Manufacturing

  475-484

  László Pusztai

  Balázs Kocsi

  István Budai

  Lajos Nagy

  Views:

  112

  The main target of companies is to earn money and achieve profit. In order to fulfil these needs, companies have to reduce their costs. Cost reduction is often associated with bad quality products, but it could be done in a different way. Sometimes it is enough to examine only their own processes and then benefit from the process optimization, process improvement or process scheduling. In this article a case study is presented, in which the differences in a production scheduling are evaluated with the application of Monte-Carlo simulation and descriptive statistics. At the end of the paper the most efficient material sequence is selected at the manufacturing company by using weighted sum model

• Improving the Work Breakdown Structure of the Plant Installation - Case: Asphalt Plant

  174-187

  Said Abujudeh

  Views:

  342

  The improvement of the project management forced the industrial organizations to focus on using the project management techniques in their industry, to plan and control the workflow to achieve their targets, further to increase the satisfaction of their customers. One of the most common project management tools are used is the work breakdown structure (WBS), which provide a framework for the implementation of the project scope including project planning, scheduling, monitoring, control, and estimation. Depending on the top-down approach the project activities will be broken into smaller parts that can be measured and controlled during the project implementation. The well-defined construction of the structure contributes to making the project more realistic and visual. However, the misunderstanding of the project WBS among the project team creates deflection and misinterpretation of the project scope. The main issue of this research is to improve the WBS of the installation plan and develop a standard WBS for plant installation. The research was limited to Asphalt plant installation WBS as a case study to identify the weaknesses of the current WBS at the case company which leads to extra installation time and cost. The research is offering a template WBS based on the company logic, defining the frequent risks that affect the plant installation based on the WBS and suggesting a suitable response strategy by recommending a control framework to monitor and control the WBS schedule throughout all installation phases.

• Maintenance from the Work Safety Point of View

  190-196

  Renáta Mészáros Zákányi

  Balázs Zákányi

  Norbert Tamás

  Views:

  108

  Deterioration of the technical condition of plant equipment is a common phenomenon nowadays. According to the experience of authorities, all this contributes to the occurrence of malfunctions and accidents. Plants that operate with an inadequate conservation strategy are now nearing the end of their design life, thus posing an increased accident risk. Aging processes are often accelerated by the operator's underestimation of the effects of equipment stress and the extent of deterioration mechanisms, and the consequent inadequate design and operation of condition monitoring and maintenance procedures. The aim of our work is to examine trends in the light of modern maintenance optimization methods and, in connection with this, to make proposals for the optimization of maintenance scheduling for employers.