1 - 8 of 8 Chapters
[Since the financial crisis in 2009, the global economy has begun growing steadily again. Especially in the emerging markets of Brazil, India, and China, there have been high growth rates in the last few years. As illustrated in Table 1.1, the forecasts (marked with an asterisk) still assume a...
[Chapter 1 presented the motivation for the focus of this thesis, which is production planning in the consumer packaged goods industry—more specifically, lot-sizing and scheduling. However, this planning cannot be considered separately, as will be shown in Section 2.1. In fact, the whole supply...
[As indicated in Section 2.5, today’s Advanced Planning Systems provide sophisticated planning functionality. However, since APS providers are not willing to disclose the used lot-sizing and scheduling models nor the applied solution methods, the planner can barely know how the results are...
[In the previous chapter, it became clear that the General Lot-sizing and Scheduling Problem for Multiple Production Stages (GLSPMS) fits best the requirements for solving the problem of shifting bottlenecks in the consumer goods industry. Unfortunately, the GLSPMS shows a few shortcomings which...
[Section 4.2 showed that a standard MIP-solver is not able to solve mid-sized instances of the improved GLSPMS to optimality within 1h of runtime. But as mentioned in Chapter 3, the way of formulating a model has impact on the performance of a solver. Accordingly, this chapter which is based on...
[Even though the reformulations presented in Chapter 5 provide slightly improved (dual) lower bounds and thus reduce the computational effort of a standard MIP-solver, it is still not possible to solve mid- and large-sized problem instances exactly.]
[Chapter 2 illustrated the attributes of a flow line production system which might need to be considered by a simultaneous lot-sizing and scheduling. Indeed, the GLSPMS regards most of these attributes and allows hereby solving different problem settings of the consumer packaged goods industry....
[In the consumer packaged goods industry, usually a large number of final items is produced in a two- or three-stage flow line production system with heterogeneous, parallel production lines at each stage. Due to sequence-dependent setup times and costs a simultaneous lotsizing and scheduling of...
Read and print from thousands of top scholarly journals.
Continue with Facebook
Log in with Microsoft
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Sign Up Log In
To subscribe to email alerts, please log in first, or sign up for a DeepDyve account if you don’t already have one.
To get new article updates from a journal on your personalized homepage, please log in first, or sign up for a DeepDyve account if you don’t already have one.