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2018 | Buch

Definition and Context Kapitel lesen Erstes Kapitel lesen

Designing, Selecting, Implementing and Using APS Systems

verfasst von: Dr. Vincent C. S. Wiers, A. (Ton) G. de Kok

Verlag: Springer International Publishing

Enthalten in: Springer Professional "Wirtschaft+Technik" , Springer Professional "Wirtschaft"

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Über dieses Buch

Commercial advanced planning and scheduling (APS) systems have been around for about 25 years and have seen widespread adoption in a variety of companies. The promises made by APS system implementations are high, and at the same time, APS projects are complex, costly, and carry a significant risk of failure. There is a great need for guidance on how to successfully implement APS systems, which is why this book was written.
In this book, we aim to discuss all facets of APS implementation, from theoretical background to definition, vendor selection, system design and the implementation process. In addition, this book helps readers understand how the underlying concepts were formed, why a concept will work in practice, and when it will not.
The contents of this book are based on many years of academic research and APS implementation experience. It draws together theory and practice in production control and explains how theories can be applied to support planning and scheduling processes in practice. This book will help anyone involved in APS implementations to achieve success: human planners generate better plans than before, using the APS.

Inhaltsverzeichnis

Frontmatter
Chapter 1. Definition and Context
Abstract
By planning, humans try to control reality, by simulating and influencing events that are expected to happen in the future. In planning something, humans will anticipate events that will or must happen, the time it will take for each event, and what preconditions and interrelationships exist for these events. Value networks are of particular interest here, as these networks – which we will refer to as supply chains, as this is the common notion used in practice and literature – need to deliver products or services against some expected timeline and reasonable costs. For many companies, an efficient and effective supply chain can be a competitive advantage, and planning plays a crucial role in achieving this advantage. This applies both to internal supply chains – e.g., “within the plant walls” – and external supply chains, between plants, warehouses, and customers.
Vincent C. S. Wiers, A. (Ton) G. de Kok
Chapter 2. Why Apply APS
Abstract
In general, APS can be considered when a planning problem is (1) complex and (2) large and (3) the operational process flexibility is limited. We will discuss these characteristics in more detail.
Vincent C. S. Wiers, A. (Ton) G. de Kok
Chapter 3. Decision Hierarchies
Abstract
An APS is typically implemented to improve elements of the supply chain performance. There is a relation between the plan that is created using the APS and the operational performance that is achieved – when the plan is executed. The APS consultant needs to understand what performance criteria must be improved, to make sure the right functionality is supported in the APS. Furthermore, the control loop that is created by:
  • Setting performance objectives to be achieved
  • Translation of these objectives into parameters of the APS system
  • Usage of the APS system
  • Execution of the tasks prescribed
  • Measurement of actual performance
Vincent C. S. Wiers, A. (Ton) G. de Kok
Chapter 4. Functional Design
Abstract
Please check the hierarchy of the section headings and confirm if correct.
Vincent C. S. Wiers, A. (Ton) G. de Kok
Chapter 5. The Implementation Project
Abstract
APS projects can be regarded as a special type of the implementation of an information system. As far as we know, there is no documented scientific research on how APS projects should be carried out. For this part of the book, we will draw mainly from experience, but this also means that there might be approaches possible that simply have not been tried out yet or that have escaped our attention. Furthermore, there are many textbooks on project management, so in this we will focus on the peculiarities for APS projects.
Vincent C. S. Wiers, A. (Ton) G. de Kok
Chapter 6. Vendor Selection
Abstract
There are roughly two kinds of APS vendors that can be considered when looking for an APS solution: vendors offering APS as an add-on to ERP or MES and “pure” APS vendors. The choice for an ERP vendor is typically not only based on a functional match with requirements – when the organization already uses the ERP offered by the vendor, it might be logical to also evaluate their APS offering.
Vincent C. S. Wiers, A. (Ton) G. de Kok
Chapter 7. Human Planners and Schedulers
Abstract
There is a widespread misunderstanding that APSses basically serve as a placeholder for algorithms replacing human activity. Algorithms indeed exist, but they are typically based on a formal and largely simplified definition of planning and scheduling. Most publications on algorithms do not contain an application to practice. Instead, APSses serve to support humans that perform production control tasks, which means that any implementer of APS systems needs to have an understanding of these tasks – which goes far beyond the mathematical definitions (e.g., McKay et al. 1988; Stoop and Wiers 1996).
Vincent C. S. Wiers, A. (Ton) G. de Kok
Chapter 8. Live Usage
Abstract
For many implementations of information systems, when the go live has been achieved, the project team quickly disintegrates and is sent off to other projects, to leave the aftercare to the lesser talented. A sigh of relief signals the end of a long and laborious effort, and many of the ideals and promises that were made during the kickoff have been forgotten. The project team is dismissed and assigned to another project, and as the budget for consultancy has been used up, consultants move to another job. The people who use the system on a daily basis struggle to integrate the APS in their professional life. They are not thinking about return on investment, delivery performance, and inventory costs anymore – they have to deal with the APSses child diseases, with the newly installed support organization, and with training other users and getting the right data out of the system to keep the business processes working.
Vincent C. S. Wiers, A. (Ton) G. de Kok
Backmatter
Metadaten
Titel
Designing, Selecting, Implementing and Using APS Systems
verfasst von
Dr. Vincent C. S. Wiers
A. (Ton) G. de Kok
Copyright-Jahr
2018
Electronic ISBN
978-3-319-65055-5
Print ISBN
978-3-319-65054-8
DOI
https://doi.org/10.1007/978-3-319-65055-5

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