The fill rate is usually computed by using the traditional approach, which calculates it as the complement of the quotient between the expected unfulfilled demand and the expected demand per replenishment cycle, instead of directly the expected fraction of fulfilled demand. Furthermore the available methods to estimate the fill rate apply only under specific demand conditions. This paper shows ...

The paper provides a new approach to study the problem of optimal control of two-item inventory model with deteriorating items. The total cost includes the sum of the holding costs of inventory, the holding costs of one item due to the presence of other and the production costs. The solution of optimal control problem of two-item model will be carried out using Pontrygin principle. The controll...

Multi-echelon, multi-indenture spare parts inventory control subject to system availability and budget constraints, Reliability Engineering and System Safety, This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of ...

Economic lot size scheduling problem (ELSP) for a multi-product single machine system is a classical problem. This paper considers ELSP with budgetary constraint as an important aspect of such systems. In the real world situations the available funds for investment in inventory is limited. By adopting the common cycle time approach to ELSP, we obtain the optimal common cycle which minimizes the...

The given research fulfils the evaluation of the efficiency of application of two universal simulation packages ExtendSim 8 and AnyLogic 6.7 for inventory control system simulation. In the study twenty eight evaluating criteria have been developed which are distributed in five groups: general, programming aspects, visualization, simulation and user support. As an object of the simulation the in...

A non-invasive method of audio file identification is described to ascertain the proximity of processed audio, of possibly dubious origin, to a reference file. A differential correlation function forms the basis of a comparative metric. Testing embraces linear and non-linear processes including perceptual based codecs. Applications include DVD_A and SACD when used as the only legitimate non-wat...

This is a brief overview of the Taxis project, concerned with the development of languages, tools and methodologies for the design of interactive information systems (ISS) such as reservations, inventory control and credit card verification. We describe the major novel ideas explored in this project, the tools and techniques supporting them, and their source in significant ideas of Artificial I...

Today, enterprise resource planning (ERP) software systems are one the fastest growing segments of the business–software industry. They offer a single system linking all corporate operations, including planning, manufacturing, sales, vendor relations, inventory control, human resources, and accounting. Companies around the world spent billions of dollars and expended untold man-hours installing...

Fuzzy Logic is used to derive the optimal inventory policies in the Supply Chain (SC) numbers. We examine the performance of the optimal inventory policies by cutting the costs and increasing the supply chain management efficiency. The proposed inventory policy uses multi-agent and Fuzzy logic, and provides managerial insights on the impact of the decision making in all the SC numbers. In parti...

This article considers five cost-rate models for inventory control, each summarizing the expected holding and shortage costs per period as a function of the inventory position. All models have linear holding costs and shortage cost coefficients of dimension [$/unit/period], [$/unit] and [$/period]. The latter two coefficients may be the shadow costs of a fill-rate and a ready-rate service const...