We study the following lot-sizing models that recently appeared in the literature: a lotsizing model with a remanufacturing option, a lot-sizing model with production time windows, and a lot-sizing model with cumulative capacities. We show the equivalence of these models with a classical model: the lot-sizing model with inventory bounds.

This paper reports an empirical study that used computer science major students as experimental subjects to evaluate the productivity and the reproducibility of RmFFP. This is a functional size measurement procedure designed according to the COSMIC-FFP method for object-oriented systems that are specified using the OO-Method approach. The results show that the productivity of RmFFP is acceptabl...

SOA (Service Oriented Architecture) is a loosely-coupled architecture designed to tackle the problem of Business/Infrastructure alignment to meet the needs of an organization. A SOA based platform enables the enterprises to develop applications in the form of independent services. To provide scalable service interactions, there is a need to maintain service’s performance and have a good sizing ...

A meta-analysis assessing the relationship between software size and software quality across 10 diverse software project studies spanning over 20 years suggests that the relationship between software size and quality is strong and significant. However, the analysis of several moderating variables indicates that technology, process and resource factors also help explain the variance in software ...

Many functional size measurement procedures have been developed for applying the COSMIC measurement method to particular methods of software production. A subset of these measurement procedures is centered on the measurement of the functional size of the applications from their conceptual models, allowing the generation of indicators in early stages of the development cycle of a software produc...

INTRODUCTION The device closure of atrial septal defects has evolved over the years. In the early days of transcatheter occlusion, balloon sizing was used to choose an appropriate sized device. We postulate that balloon sizing does not value-add to the procedure and is unnecessary. MATERIALS AND METHODS Patients who had balloon sizing, with (Group 1, n = 38) or without (Group 2, n = 21) atria...

One aspect that has mostly been overlooked in traditional economic lot-sizing is the implication of decisions on manual tasks and workload. Although lot-sizing decisions can have a significant impact on required manual material handling and on human performance, works that consider ergonomic aspects in lot-sizing are rare. This paper presents a model that integrates ergonomic aspect in terms of...

A bushing bearing was required between the aluminum connecting rod and the wrist pin to reduce wrist pin bearing wear in a severe application. The bushing could not be machined after assembly and precise control of bearing clearance was achieved by re-sizing (using a mandrel) after assembly. Re-sizing was a critical operation. Too much re-sizing would loosen the bushing pressfit while too littl...

We evaluate the effectiveness of statistical gate sizing to minimize circuit power. We develop reliable posynomial models for delay and power that are accurate to within 5-10% of 130nm library data. We formulate statistical sizing as a geometric program, accounting for randomness in gate delays. For various ISCAS-85 circuits, statistical sizing at a 99.8% target yield provides 25% power reducti...

We address the problem of generating mesh sizing functions from a set of points with specified sizing values. The sizing functions are shown to be maximal and K-Lipschitz, with arbitrary parameter K provided by the user. These properties allow generating low complexity meshes with adjustable gradation. After constructing an additively weighted Voronoi diagram, our algorithm provides fast and ac...