One of the great difficulties in solving logistical problems is the lack of which will be the scope of a decision, not only in terms of the expected response, but also forming indirectly affect other aspects of system performance parameters.
The successful use of simulation techniques as an aid to decision making in logistics, is to formalize the experience and knowledge gained in managing the system in order to discuss, evaluate and provide the best alternatives to achieve objectives.
To move that the logistics can be a useful tool for reducing transport costs to an entire corporate culture of continuous improvement and strategic necessity, be a need for methodologies and tools that facilitate decision making by understanding the problem solve under an integrated perspective, not as a compromise between the subproblems that has broken the logistical problem.
The models used for analysis and planning decisions can be classified into :
* deterministic analytical models: is characterized in that the parameters are known and specific values, and the goal is to achieve an analytical solution through mathematical programming techniques.
* Stochastic Economic Models: are characterized in that at least one parameter is unknown, but is intended to respond to some statistical distribution function.
* Business Models: They focus on the specification of the buyer-seller from a cost perspective.
* Simulation models: representations enable you to reach a high degree of detail of the system under study. Greatly facilitate decision making through analysis such as what would happen if ...?
The main difficulty in solving logistical problems is that every time you take a decision on a particular variable, must be taken which will be the scope of the decision, not only in terms of system response, but also how they affect other variables closely related to the initial. From a formal point of view, the difficulty in using computer systems to assist decision-making occurs in the large number of variables involved, the interactions between them and even conflicting interests that often have conflicting . Able to respond to location problems productive and logistic centers, such as: Where should facilities be? How should we design the transmission or distribution of the stores? Are some logistical problems for which no standard software packages that can give the answer that the industry needs.
Digital simulation is a computer mimic the behavior of a system under certain operating conditions. This requires formalizing "Building the model based on the syntax of a simulation language, the knowledge we have of the system to be simulated by logical relations, and symbolic mathematics. The knowledge gained in the development phase of the simulation model provides a good basis to suggest changes, most likely to generate benefits in overall system performance.
Once you have a correct model, it can be used to analyze and evaluate how certain changes affect system performance, both in its organization and management policies of shares, before such changes are applied the real system. Experiments in digital simulation environments can also gain a better understanding of the interactions enter different decision variables from observation of the results obtained to cause changes in the parameters of the model.
is a brief introduction to using the SIMULATION for making decisions, this does not mean that in order to create such a system should be an expert computer programmer or anything, there are specialized companies dedicated to the creation of models based on all the information we provide and the goals to be achieved, simply aim to explore this possibility, it is a great tool used by many companies today.
Para aquellos que quieran profundizar mas el tema se recomienda el siguiente libro :
CASANOVAS JOSEP , GUASCH TONI , RAMOS JUAN JOSE
Editorial DIAZ DE SANTOS
Peso 0,24 Kg.Edición 2006,en Rústica
104 páginas
Idioma Español
Video donde pueden observar un proveedor que se encarga de realizar este tipo de proyectos basados en el armado de modelos a medida para la toma de decisiones, luego ellos mismos ofrecen el servicio de por ejemplo la construcción desde cero de un centro logístico, o bien la modificación some of its parts.
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