Multicommodity distribution problem is one of the most interesting and useful models in mathematical programming due to its major role in distribution networks. The purpose of this paper is to describe and solve a special class of multicommodity distribution problems in which shipment of a commodity from a plant to a customer would go through different distribution centers. The problem is t...

in customer relationship management (crm) systems, importance and performance of the attributes that define a service is very important. importance-performance analysis is an effective tool for prioritizing service attributes based on customer needs and expectations and also for identifying strengths and weaknesses of organization in the market. in this study with the purpose of increasing reli...

In order to meet the design requirements of quick configuration of products for consumers, facing the problems of the poor share and reuse of product configuration knowledge, and inefficient configuration, propose the product configuration design method of product family model based on the forecast of user demands. Build the ontology modeling of product family using the share and reuse of ontol...

Due to the continuous changes in markets and society, companies and organizations have to constantly adapt themselves to maintain competitiveness. One of the options is to strategically join their competencies to rapidly respond to a business or collaboration opportunity through a goal-oriented network. Nevertheless, as market demands are continuously and fast evolving, besides taking advantage...

Multicommodity distribution problem is one of the most interesting and useful models in mathematical programming due to its major role in distribution networks. The purpose of this paper is to describe and solve a special class of multicommodity distribution problems in which shipment of a commodity from a plant to a customer would go through different distribution centers. The problem is t...

In this paper, the fuzzy multi-depot vehicle routing problem with simultaneous pickup and delivery (FMDVRP-SPD) is investigated. The FMDVRP-SPD is the problem of allocating customers to several depots, so that the optimal set of routes is determined simultaneously to serve the pickup and the delivery demands of each customer within scattered depots. In the problem, both pickup and delivery dema...

In this paper, practical activities of Needfinding an intertwined approach to identifying needs and to visualizing idea concepts in early design are described and discussed. This is done primarily to gain an increased understanding of the various representations of user needs that are fed into the fuzzy front-end activities of team-based product innovation projects. The empirical basis comes fr...