Robert Bucki

Institute of Management and Information Technology, Bielsko-Biała · Informatics

The paper analyzes and successively assesses the problem of information delays in a sample logistics system, in which customer inquiries are sent to adjacent or dedicated units in the logistics chain. Within such a framework time and unit costs of customer service and inquiry are analyzed. A detailed model of the logistics system is thus elaborated...

The article focuses on one of the current problems of manufacturing systems which consist of individual machines equipped with dedicated tools that are replaced when they are worn out. It is assumed that the machines are located within the reach of the robotic arm which carries out transport operations of semifinished products to designated product...

The paper highlights the problem of the criteria-based assessment of the software system taking into account their sustainability, maintainability, and usability. The extended iteration model of creating software as well as its subsequent implementation is emphasised. The mathematical model for validating the software by highly qualified experts is...

The paper highlights the problems of mathematical modelling in the delivery system. The system describes the suppliers who offer different types of products as well as the consumers who order different products. Products are ordered at stochastic times, however, manufacturers offer predictable demand. The problem becomes more complex when the numbe...

This paper highlights the problems of mathematical modelling for a specific element of the logistic supply chain, that is, the manufacturing system. The complex manufacturing system consisting of a determined number of parallel subsystems is modelled. The fact that the same manufacturing procedure can be carried out in various locations is emphasis...

The paper highlights the problem of the logistic system modeling which consists of similar structures representing a synthetic manufacturing plant. Routes for products as well as matrixes of life and state are given. Structures differ from each other as they have various transport times from one production stand to another. Additionally, tool repla...

The paper highlights the results of the survey of potential retail customers. The survey emphasizes the relationship between their responses to the chosen marketing pricing strategies and the perception of the introduction of the euro and the crisis. The multi-dimensional techniques were used to implement input data concerning perceptions of the eu...

The paper highlights the problem of minimizing economic costs of making orders in the automated manufacturing system which consists of work centres arranged in a series. Each of them is equipped with tools which carry out defined manufacturing operations. Tools are replaced with new ones only when no manufacturing operation can be performed any mor...

The paper highlights the mathematical model of the assembly process for the automated line as well as sequence control algorithms for the assembled version of objects. The automatic assembly line control requires numerical simulation. Minimizing the assembly time of all objects or maximizing the number of assembled objects within the given time are...

The article presents the main bases of artificial intelligence, probabilistic diagnostic methods, development of the diagnostic database and diagnostic base of knowledge and Bayesian networks as a base of the diagnostic self-learning systems which are commonly used in medicine to recognize diseases on the basis of symptoms. Probabilistic models of...

The paper highlights the problem of mathematical modelling and the subsequent simulation of the complex logistic manufacturing system with regeneration of tools. The system itself consists of identical parallel manufacturing subsystems in which there is a certain number of production stands arranged in a series. Each stand can carry out an operatio...

The paper highlights the problem of mathematical modelling of the manufacturing centre. The case which is thoroughly analysed in the paper is based on the production centre consisting of machines which carry out dedicated operations on defined objects. A logistic modelling problem of the production centre is described in detail. The goal is formula...

Nowadays the trend is to obtain information from all range of available sources with the use of various methods. However, even today it is impossible to avoid standard methods which include questionnaire research. It can be carried out in a classic way, by means of a paper questionnaire or with implementing the Internet-based questionnaire. Questio...

The paper highlights the problem of mathematical modeling of the highly complex manufacturing system in which work stations are arranged serially within each production plant. Production plants are located in a parallel way. The specification details and the model resulting from them led to creating the simulator to be employed to solve the problem...

The paper highlights the problem of multi-stage optimization consisting in determining a timescale of realization orders of objects. Each production stage requires solving a multi-stage discrete programming problem. Production is optimized from the given state of the line to the state in which the line capacity does not allow any further manufactur...

The paper highlights mathematical modeling of the complex logistic system. All the orders to be realized are chosen on the basis of decisions made by a heuristic algorithm to meet the stated criteria. Equations of state show the changes in either the order vector or workstations or charge stores after each decision made in the system leading to the...

The article highlights the problem of mathematical modelling and subsequent simulation of the highly complex synthetic environment illustrating the real production system consisting of parallel manufacturing plants equipped with interoperation buffer stores. The system can be arranged optionally by means of the simulator which was created on the ba...

The paper focuses on modeling the hypothetical complex manufacturing system consisting of identical workstations arranged in a series. Each workstation is formed with tool centers and can be used for fixing various kinds of the same tool type. The workstations are used to manufacture elements of the specific orders from determined charge materials....

The paper highlights the problem of mathematical modeling of a complex manufacturing system which is a potential synthetic representation of a real production environment. Production lines are parallel. Each production line consists of work stations which are placed serially along the predetermined trajectory. Each work station is equipped with the...

The paper highlights the problem of mathematical modelling of the complex system of identical parallel manufacturing plants. The sequence of elements of the order matrix which are to be realized subsequently is sought for on condition it meets the stated criteria of production maximization and minimal tool replacement time. The heuristic algorithms...

The paper highlights the problem of mathematical modelling of the highly complex logistic system consisting of parallel production lines. Each production route is arranged in a series of stands equipped with manufacturing machines. It is assumed that all production lines are identical. Each production stand performs a manufacturing operation with t...

Rapidly changing business environment requires new approaches and methods for supporting management systems in all types of companies. Modern companies doing business use e-commerce systems by default. One of the key areas of e-commerce systems is logistics and the supply chain. The optimal way to ensure the success of logistics and supply chains i...

The paper focuses on the problem of mathematical modeling of the highly complex manufacturing system imitating real production systems. However, for simplicity needs modeling is carried out in the proposed synthetic manufacturing environment. Authors concentrate on introducing extended specification details leading to creating the proper functional...

The paper highlights the vital problem of information mathematical modelling of the logistic system. The complex system itself consists of identical parallel manufacturing subsystems in which there is a manufacturing route arranged in a series of stands. Each stand is equipped with a machine with the dedicated tool. There are interoperation buffer...

The paper highlights the problem of mathematical modelling of the autonomous production system in which there are production stands equipped with exactly the same machines arranged in a series. Each machine can perform a number of operations by means of a specified tool predefined from the set of tools. However, only one operation can be performed...

The paper highlights the problem of mathematical modelling of the complex logistic system consisting of parallel production lines. Each production route is arranged in a series of stands equipped with manufacturing machines. There are shared interoperation buffer stores placed between subsequent production stands. It is assumed that all production...

The paper highlights the problem of mathematical modelling of the production process in which production stands are arranged in series. Heuristic algorithms are implemented in order to solve this highly complex mathematical task consisting in minimizing the total order realization time, maximizing the production output and minimizing the loss of un...

E-commerce systems are tools meant to support the supply chain (SC), the quality of which as well as other parts of the e-commerce system largely depend on management processes representing supply chain management (SCM). The optimal way to ensure the success of SCM is to use the methods of modelling and simulation based on appropriate models and ma...

The paper highlights the problem of mathematical modelling of a logistic system in which production stands are arranged in a series. The problem itself consists in determining the sequence of elements of the order vector which are to be realized subsequently. In order to avoid bringing the production process to a standstill each production stand ca...

The paper highlights the problem of mathematical modelling of the sample logistic production system where production stands are arranged in series. The production stands are equipped with tools which are used during the production process. If a tool is completely worn out, it needs to be replaced or regenerated. The problem consists in determining...

The paper highlights the problem of teaching a foreign language by means of using the vocabulary testing method. The problem of heuristic priority and criteria implementation in order to deliver awaited word arrangement is emphasized. It is the insight into the way of finding a solution in the so-called critical situations when other approaches fai...

The article highlights the problem of modelling the flexible production system which is used to manufacture orders in accordance with the proposed control algorithms. The tools replacement is carried out under the control of the replacement heuristic. The equations of state of the production system and the stand are given as well as the order vecto...

The paper highlights the problem of mathematical modelling of the serial logistic manufacturing system in which each work stand performs autonomously independent number of operations in sequence on the order vector elements. It is assumed that machines in each work stand are identical and equipped with the same set of various tools which can be arr...

The paper highlights the problem of control while events come into being in a stochastic way in a synthetic environment with no unexpected disturbances. The events result from a certain activity in the predefined area. The general model takes into account the number of events which trigger an immediate assumed action in order to eliminate the state...

The present state of world economy urges managers to look for new methods, which can help to start the economic growth. To achieve this goal, managers use standard as well as new procedures. The fundamental prerequisite of the efficient decision-making processes are actual and right information. Managers need to monitor past information and current...