Operations planning test bed under rolling horizons, multiproduct, multiechelon, multiprocess for capacitated production planning modelling with strokes

Abstract

One of the problems when conducting research in mathematical programming models for operations planning is having an adequate database of experiments that can be used to verify advances and developments with enough factors to understand different consequences. This paper presents a test bed generator and instances database for a rolling horizons analysis for multiechelon planning, multiproduct with alternatives processes, multistroke, multicapacity with different stochastic demand patterns to be used with a stroke-like bill of materials considering production costs, setup, storage and delays for operations management. From the analysis of the operations planning obtained from this test bed, it is concluded that a product structure with an alternative process obtains the lowest total cost and the highest service level. In addition, decreasing seasonal demand could present a lower total cost than constant demand, but would generate a worse service level. This test bed will allow researchers further investigation so as to verify improvements in forecast methods, rolling horizons parameters, employed software, etc.

Collaborative Distributed Planning with Asymmetric Information. A Technological Driver for Sustainable Development

“…A flow chart of Figure 1 presents the modelling approach, Figure 2 the experiment design, while Figure 3 will present the coordination mechanism proposal steps. Secondly, the design of the numerical experiment is presented based on an available test bed [66]. This test bed allows several operations planning variables to be analysed, such as different demand types including expected variations (constant, trend, seasonal, combinations), suspected variations (noise in uniform distribution), unknown variations (uncertainty with random variation) and the irregular distribution of demand among final products.…”

“…In order to validate the proposed resource sharing mechanism, a large instance test bed [66] is used to compare each entity's total costs and service level among (1) centralised coordination, (2) an incoordination situation and (3) distributed coordination proposals by a rolling horizon procedure. Total costs are defined as the sum of the costs of the 52 analysed executed periods.…”