共同研究者.ppt

Supply Chain Modeling Language (SCML) Project Mikio KUBO Tokyo University of Marine Science of Technology What is the SCML? Supply chain optimization models resource constrained scheduling (RCS), lot-sizing (LS) logistics network design (LND) safety stock allocation (SSA) economic order quantity (EOQ) inventory policy optimization (IPO) vehicle routing (VR) Combinatorial optimization problems generalized assignment problem (GAP) set covering problem (SCP) rectangular packing problem (RPP) multi-dimensional knapsack problem (MKP) facility location problem (FLP) Related work SCOR (supply chain operations reference) model SCML (same name!) : supply chain modeling language for simulation Algebraic modeling languages SCOR model proposed by Supply Chain Council A reference model designed for effective communication among SC partners SC= {(plan, source, make deliver, return) ...} Another SCML Chatfield et al. (2009) XML-based document format for simulation Basic entities are: node and arc (network is essential) component (≒ product + resource) action (≒ activity) policy (for doing simulation) Algebraic modeling languages AMPL, MOSEL, OPL, GAMS, etc. solvers (general purpose) Mixed integer programming, constrained programming, other nonlinear programming using set, parameter, variable, objective function, constraints, etc. (also general purpose) Previous work Activity based view of linear programming Resource constrained scheduling model Lot-sizing models State-task network representation for batch process Logistics network design model Algebraic modeling languages Activity based view of linear programming Dantzig-Wolfe (1963) Resource constrained scheduling model Lot-sizing models State-task network representation Logistics network design model Key entities activity resource product node arc horizon mode state, temporal, piecewise, solver … Activity Every action that requires the resources, consumes and/or produces the product, and derives the cost