Wyniki wyszukiwania - BazTech

1

Solving transport logistics problems in a virtual enterprise through artificial intelligence methods

Pavlenko V., Pavlenko T., Morozova O., Kuznetsova A., Voropai O.

Transport Problems

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2017

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T. 12, z. 2

31--42

EN

The paper offers a solution to the problem of material flow allocation within a virtual enterprise by using artificial intelligence methods. The research is based on the use of fuzzy relations when planning for optimal transportation modes to deliver components for manufactured products. The Fuzzy Logic Toolbox is used to determine the optimal route for transportation of components for manufactured products. The methods offered have been exemplified in the present research. The authors have built a simulation model for component transportation and delivery for manufactured products using the Simulink graphical environment for building models.

2

Zastosowanie technologii holonowych w środowisku chmurowym przedsiębiorstwa

Ogrodowczyk B., Badurek J.

Zeszyty Naukowe Politechniki Poznańskiej. Organizacja i Zarządzanie

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2016

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Nr 70

177--190

PL

Celem artykułu jest wskazanie możliwości stosowania technologii holonowych dla implementacji chmurowego przetwarzania danych (cloud computing, CC) oraz chmurowego wytwarzania (cloud manufacturing, CM) w przedsiębiorstwie wirtualnym. Przyjęto następujący schemat wywodu: wyszczególnienie cech wspólnych oraz wyróżniających, występujących pomiędzy chmurą obliczeniową a wytwarzaniem chmurowym przedsiębiorstwa wirtualnego, a następnie zbadanie możliwości implementacji holonowych w rozważanym zakresie z uwzględnieniem studium przypadku w praktyce przemysłowej.

EN

The purpose of this paper is indication of possibilities of usage holons systems in cloud computing and cloud manufacturing environment within boundaries of virtual enterprise. This paper bases on schema: indication common and different features occurring between cloud computing and cloud manufacturing in virtual enterprise, and research of possibility of implementation holons in virtual enterprise using case study from industry.

3

Struktura organizacyjna w procesie zarządzania przedsiębiorstwem

Dźwigoł H.

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2007

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z. 41

69-81

PL

W artykule przedstawiono kierunek zmian w budowie struktury organizacyjnej współczesnych przedsiębiorstw. Dokonano charakterystyki struktury organizacyjnej z uwzględnieniem orientacji na instytucje i klienta oraz struktury przedsiębiorstwa przyszłości. Przedstawiono metody dzielenia organizacji i cechy modeli organizacyjnych oraz wpływ zmiennych sytuacyjnych i kontrolingu na budowę modelu struktury organizacyjnej. Rozwiązania organizacyjne omówiono przez pryzmat przedsiębiorstwa wirtualnego i uczącego się. Przyjęto założenie, że w przedsiębiorstwie przyszłości struktura organizacyjna będzie oparta na pracy zespołów związanych z klientami i dostawcami. Powinno się w niej dążyć do wzmocnienia służebnej funkcji zarządzania mając na uwadze racjonalność ekonomiczną, tj. zbiór decyzji i działań, w wyniku których można uzyskać optymalny efekt ekonomiczny uwzględniający własną ścieżkę rozwoju.

EN

In an article, a trend was presented which outlined the changes in the composition of an organisational structure in modem companies. A profile, of an organisational structure, was drawn up taking into consideration the orientation on institutions and clients and additionally the structure of the company of the future. Presented were the methods for dividing an organisation and the features of organisational models and also the influence of situational variables and controlling on the composition of an organisational structure model. Organisational solutions were discussed from the angle of a virtual and learning company. An assumption was made that in the company of the fiiture, the organisational structure will be based on the work of teams, which will be connected with clients and suppliers. We should then aspire to reinforce the ancillary function of management, with an economic rationality in mind, i.e. a set of decisions and actions, a result of which we can achieve an optimal economic effect, which willtake into account our own development path.

4

Planowanie zdolności produkcyjnych w wirtualnym przedsiębiorstwie

Krystek J.

Biuletyn Wojskowej Akademii Technicznej

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2007

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Vol. 56, nr sp.1

329-347

PL

Artykuł dotyczy planowania zdolności produkcyjnych wirtualnego przedsiębiorstwa zajmującego się produkcją trójfazowego silnika asynchronicznego. Jako narzędzie wykorzystano komponent planowania zdolności produkcyjnych (CRP) zintegrowanego systemu informatycznego IFS Applications. Komponent ten ściśle współpracuje z komponentem planowania potrzeb materiałowych MRP (ang. Material Requirements Planning).

EN

Capacity Requirements Planning in the virtual company producing three-phase asynchronous motor is presented. Capacity Requirements Planning (CRP) component of the Integrated Manufacturing System (IFS) Applications was used. CRP component closely cooperated with the Material Requirements Planning component.

5

Wycena wartości przedsiębiorstwa wirtualnego na przykładzie internetowego portalu turystycznego

Matczewski A., Kądziela S.

Zeszyty Naukowe. Prace Instytutu Ekonomiki i Organizacji Przedsiębiorstw / Uniwersytet Szczeciński

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2004

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Nr 43, t. 1

93-107

EN

Computer networks have formed marketspace which is very attractive for many firms. The networks created new quality for the relationships between net's participants, particularly for business contract's partners (B2B - Business to Business), for individual customers (B2C- Business to Customers) and for companies' employees (B2E Business to Employee). It was the main cause for an arising of the electronic markets in all the branches in the nineties of the XX century. The electronic markets, based on the mentioned relations, created so-called e-business. A lot of new companies, called virtual, were founded. This situation progress in the area of the widely-understood e-business requires a new approach to the evaluation and management of the virtual enterprises' value. This requirement was also confirmed by the spectacular revaluation of high-technology companies that took place on the world markets at the end of the year 2000. The abstract presents the draft of a methodical suggestion for the evaluation of a touristic portal's value on the example of TRAVELNET.PL. The present study is an attempt to define the essence of the value evaluation of the firm operating in the area of the internet touristic services. In this type of activity, the problems of value sources of two essential areas in present economy are brought together: the area of the developing e-business and the area of the traditional touristic services which is sold in the new shape of the internet services. The abstract also introduces the main questions concerning the specific of the enterprise operating on the internet touristic services market and it describes the general methodology of evaluation of an enterprise's value. At the same time it constitutes basis for the discussion about the value sources of the touristic enterprises in Internet.

6

Przedsiębiorstwa wirtualne : prognozy rozwoju

Pokorska I.

Zeszyty Naukowe Politechniki Częstochowskiej. Budownictwo

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2004

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Z. 10 (158)

165-168

7

Uwarunkowania projektowania procesów produkcyjnych w warunkach kooperacji

Moczała A.

Zarządzanie Przedsiębiorstwem

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2004

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Vol. 7, nr 2

46-54

EN

The paper presents problem of data flow in the cooperation of production process, The development of productivity demands facilitation of initiation, formation and enlarging the cooperation connections. This demands development of methods and data flow form as well as systems aided cooperation of production process. This paper addresses an issue of decision making support for small and medium size enterprises gathered in virtual enterprises. In the general frame the cooperation production process design consists of phase of looking cooperating enterprises. phase of looking enterprises which have free resources. phase of looking the best net of enterprises and phase of organization design cooperation production process. The phase of looking cooperating enterprises needs use of data base of enterprises. The proposed system compares data base with requirements. The next phase of looking between cooperating enterprises which have free resources may be solved by a heuristic method. The third phase of looking the best net of enterprises needs methods evaluating net of enterprises. Methods for evaluating the production processes design with the use of the utility function are presented in this work. During the evaluation process. three most important factors: time, cost and quality are taken into consideration. As these factors are equally important so a need to make the global evaluation and to use the utility function appears. Present tendencies in management engineering make necessity to conduct parallel the design tasks with prepared system ERP for cooperation. The proposed system demands additional change date of production process with other cooperating enterprises.

8

Komputerowo wspomagane planowanie realizacji zlecenia w przedsiębiorstwie wirtualnym

Pisz I.

Zarządzanie Przedsiębiorstwem

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2004

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Vol. 7, nr 1

35-44

EN

In recent years the market conditions have been changing. The customers demand more specialized products. The enterprises have to tailor their offers according to individual customer wishes. In order to decrease complexity and increase flexibility enterprises employ the core competence strategy. It means that they concentrate on what they can do best, they specialize in certain areas. They joint their core competencies in a value chain to exploit fast changing opportunities. The set of core enterprises built the virtual enterprise that the form of this organization is temporary. The stakeholders of the contract-order are in alliance/consortium, they share costs and skills in delivering process of the goods to the market. In order to decide whether a new work order can be executed in a given production system - in the structure of the potential virtual enterprise the producer capabilities and the customer needs have to be taken into account. This paper addresses an issue of decision-making support for small and medium size enterprises gathered in virtual enterprise. The objective is to find a computationally effective method of planning the production flows in a virtual enterprise. The considered problem regards of finding a feasible schedule that follows the constraints imposed by duration order and price given by customer and by the time-constrained resources availability. In other words it is looking for the answer whether a given work order can be accepted for processing in virtual enterprise. The following problem can be now formulated. Consider a manufacturing system providing a given production capability while processing some other work orders. That means that only a part of the production capability (specified by in the time-restricted resources availability) is available for use in the system. Given work order is represented by an activity-on-node network where the nodes and the arcs represent the activities and precedence relations, respectively. The work order is specified by project duration deadline, which is equivalent to a presumed completion time as well as a total selling price. Each activity may be executed in one out of the set of system resources. Also, each activity may not be pre-empted and the mode once selected may not be changed. Considering a time horizon that is an upper bound on the project's makespan, there is an available amount of units of renewable resource in period considered. The cost of using the unit of the resource is specified in the map of accessible of renewable resources. The problem considered regards of finding of a makespan - feasible schedule that follows the constraints imposed by the precedence relations and by the time-constrained resources availability. The objective is to find an answer for the following question: whether there exist a potential virtual enterprise which is able to do the work order in agreement with enterprise technical capacities and the client s requirements? In order to cope with this problem authors proposed a heuristic method. The method bases on the branch and bound scheme. The searching procedure is driven by an upper bound evaluation policy. In order to avoid costly exhaustive enumeration of possible schedules the cases explored are limited first of all to the ones possessing the lowest margins of cost and time. In other words first of all the cases those could lead to an unfeasible schedule are considered. Of course, the proposed way the eases are explored can be treated as searching aimed at proving that a feasible schedule docs not exist. The proposed method includes four resources allocation heuristics. The heuristics are based on estimation the value of resource capability and the average of the resource cost usage in the given period. The heuristics proposed are following: - the smallest resource capability heuristic, - the biggest resource capability heuristic, - the smallest average resource cost heuristic, - the biggest average resource cost heuristic. The presented method has been implemented in a software package Simulator of Virtual Project. The package permits to respond to a question whether a given work order can be completed for processing in a virtual enterprise? A positive response for the question provide a feasible schedule as Gantt's chart and report of the project cost. The package permits the user to investigate the effect of a new work order in a given manufacturing system. The user can find the answer whether a given work order can be accepted for processing in a given structure of a virtual enterprise. The method proposed can be useful for the project-driven production flow management in small and medium size enterprises and for prototyping of the virtual enterprise structure. It provides a good platform for consistency checking between the work order requirements (client requirements) and enterprise capabilities offered (a virtual enterprise or a single enterprise).

9

Technologie internetowe w wirtualnym przedsiębiorstwie

Cholewa M., Selinger B., Walczak M.

Spajanie Metali i Tworzyw w Praktyce

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2004

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nr 1(4)

46-47

PL

W artykule przedstawiono możliwości zaawansowanych technologii internatowych w kontekście rozwoju koncepcji wirtualnego przedsiębiorstwa. Jako przykład rozwiązania informatycznego zaprezentowany zostai system EDIMS.

10

Modele biznesowe w dobie informatyzacji gospodarki

Bućko J.

Problemy Eksploatacji

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2004

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nr 1

7-17

PL

Niniejszy artykuł stanowi przyczynek do problematyki modeli biznesowych w obecnej dobie rozwoju i wykorzystania Internetu. Internet jako nowoczesna technologia, która wzbudza ciągłe zainteresowanie przedsiębiorców, inwestorów oraz analityków biznesu, nie zastępuje skutecznych i efektywnych strategii przedsiębiorstw, lecz stanowi nieodzowne narzędzie wykorzystywane w tworzeniu i utrzymaniu konkurencyjności przedsiębiorstw. Podano wybrane próby klasyfikacji modeli e-biznesu.

EN

This paper is an introduction to the problems connected with business mo-dels at the present age of development and use of the Internet. Internet, as a modem technology, which causes permanent interest among enterpreneurs, investors and business analysts, doesn't replace effective firm strategies but seems to be on indispensable tool used for creating and sustaining the weitgh of competition. Some chosen attempts of e-business models qualification are included in this paper.

11

Modelowanie procesów dystrybucji w języku Mozart

Bzdyra K., Tomczuk I., Banaszak Z.

Inżynieria Maszyn

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2003

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R. 8, z. 2

68-75

PL

W pracy przedstawiono użycie programowania z ograniczeniami, do modelowania procesów dystrybucji. Wykorzystany został język programowania z ograniczeniami Mozart. Rozważany problem sprowadza się do odpowiedzi na pytanie czy dana struktura systemu transportowego wystarcza do realizacji planowanego portfela zleceń, tak w zakresie terminowości, jaki i wolumenu dostaw. Wśród rozwiązań dopuszczalnych poszukiwane jest rozwiązanie charakteryzujące się najniższym kosztem realizacji.

EN

In the paper, was showed usage of Constraint Programming to solve the transportation problem. The process of search of solution it was divide on two stages. In the first the routes of realization of tasks was searched. In the second, to every task the resources (trucks) was assigned. The task is in the demand with the smallest cost of realization. The system of distribution, was modelled in Mozart programming language.

12

Prototypowanie wariantów produkcji w przedsiębiorstwie wirtualnym

Kłos S., Banaszak Z.

Zeszyty Naukowe. Automatyka / Politechnika Śląska

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2002

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z. 135

97-106

PL

W artykule przedstawiono formalny model przedsiębiorstwa wirtualnego oraz metodę wariantowania produkcji w przedsiębiorstwie wirtualnym, która sprowadza się do terminowo-kosztowej oceny możliwości realizacji danego zlecenia-projektu. Rozważany problem należy do trudnych problemów decyzyjnych. Załączony przykład ilustruje możliwość wykorzystania metod opartych na koncepcji ścieżki krytycznej.

EN

In the paper a formal model of a virtual enterprise and a method of production variants prototyping is presented. The method is based on a cost and production period valuation of an enterprise capability to complete a production order. A CPM framework is issued to cope with considered decision problem belongs to hard decisions problems. An illustrative example is presented.

13

Przepływ informacji w procesach zarządzania łańcuchem dostaw

Tkaczyk S., Roszak M.

Problemy Jakości

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2002

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R. 34, nr 10

20-25

EN

The integration of company systems (or subsystems) is necessary for to achieve the best management results in consideration of all cooperating suppliers and customers. They form the chain of mutual supplies, where the logistics finds its very broad application. The efficiency of that network depends from the correct information flow between collaborating organizations. The use of EDI-FACT (Electronic Data Interchange for Administration, Commerce and Transport) methodology helps significantly in all activities including newly established firms, so called virtual companies. Therefore the quality criteria in SCM - Supply Chain Management, play so important role for the company development on the global market. These problems are here broadly discussed.

14

Marketing w przedsiębiorstwie XXI wieku, czyli marketing wirtualny

Baruk A.

Zarządzanie Produkcją

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1999

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Vol. 2, nr 1-2

4-8

EN

Definition of virtual organization is given in the paper. The origin of this idea is presented and main features of enterprise of this kind are mentioned too. One of the most important attributes of virtual organization is applying the rules of virtual marketing, which also are discussed with details. In the next part of the paper virtual marketing instruments are characterized in opposition to traditional marketing-mix. The idea of virtual organization is the answer to more and more turbulent environment and growing complication of inside Structures and processes creating organizational individuality of enterprise. In the same time was formulated conception of virtual marketing which rules are based on two very important theory: process management and manager knowledge management. The main instruments of virtual marketing are: - virtual products (or non- materials products), - virtual megastrategies, - processes created the virtual value chain, - manager knowledge. Consuments are treated as the most important resources which determines the long period development of the virtual organization. Competitive advantage can be obtained by firm in result applying rules of virtual marketing. It must be said that Polish enterprises are not ready to run their activity in this way, because many of them are oriented on sale or on production and do not realize even the traditional marketing orientation.

15

Nowe koncepcje a rzeczywistość.

Haus B.

Prace Naukowe Instytutu Organizacji i Zarządzania Politechniki Wrocławskiej. Konferencje

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1998

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Vol. 68, nr 21

50-58

PL

Przedstawiono kilka nowych koncepcji w zarządzaniu. Wskazano syntetycznie na ich charakter oraz możliwości praktycznego zastosowania. We wstępie zwrócono uwagę na konieczność uwzględnienia zróżnicowanych przedsiębiorstw. Nie każde z nich może nowe koncepcje wdrożyć. Szczególnie istotne jest rozróżnienie małych i dużych przedsiębiorstw.