scholarly journals Enabling Product Design Reuse by Long-term Preservation of Engineering Knowledge

2009 ◽  
Vol 4 (3) ◽  
pp. 17-28 ◽  
Author(s):  
Jörg Brunsmann ◽  
Wolfgang Wilkes
Keyword(s):  
Knowledge Representation ◽  
Product Information ◽  
Product Lifecycle Management ◽  
Engineering Industry ◽  
Formal Representation ◽  
Design Data ◽  
Engineering Knowledge ◽  
Future Design ◽  
Long Term Preservation

In the highly competitive engineering industry, product innovations are created with the help of a product lifecycle management (PLM) tool chain. In order to support fast-paced product development, a major company goal is the reuse of product designs and product descriptions. Due to the product’s complexity, the design of a product not only consists of geometry data but also of valuable engineering knowledge that is created during the various PLM phases. The need to preserve such intellectual capital leads engineering companies to introduce knowledge management and archiving their machine-readable formal representation. However, archived knowledge is in danger of becoming unusable since it is very likely that knowledge semantics and knowledge representation will evolve over long time periods, for example during the 50 operational years of some products. Knowledge evolution and knowledge representation technology changes are crucial issues since a reuse of the archived product information can only be ensured if its rationale and additional knowledge are interpretable with future software and technologies. Therefore, in order to reuse design data fully, knowledge about the design must also be migrated to be interoperable with future design systems and knowledge representation methods. This paper identifies problems, issues, requirements, challenges and solutions that arise while tackling the long-term preservation of engineering knowledge.

scholarly journals The Road to Accountable and Dependable Manufacturing

Automation ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 202-219
Author(s):  
Jan Pennekamp ◽  
Roman Matzutt ◽  
Salil S. Kanhere ◽  
Jens Hiller ◽  
Klaus Wehrle
Keyword(s):  
Product Information ◽  
Product Lifecycle Management ◽  
Security And Privacy ◽  
Efficient Production ◽  
Business Relationships ◽  
Process Data ◽  
The Road ◽  
Blockchain Technology ◽  
On The Road

The Internet of Things provides manufacturing with rich data for increased automation. Beyond company-internal data exploitation, the sharing of product and manufacturing process data along and across supply chains enables more efficient production flows and product lifecycle management. Even more, data-based automation facilitates short-lived ad hoc collaborations, realizing highly dynamic business relationships for sustainable exploitation of production resources and capacities. However, the sharing and use of business data across manufacturers and with end customers add requirements on data accountability, verifiability, and reliability and needs to consider security and privacy demands. While research has already identified blockchain technology as a key technology to address these challenges, current solutions mainly evolve around logistics or focus on established business relationships instead of automated but highly dynamic collaborations that cannot draw upon long-term trust relationships. We identify three open research areas on the road to such a truly accountable and dependable manufacturing enabled by blockchain technology: blockchain-inherent challenges, scenario-driven challenges, and socio-economic challenges. Especially tackling the scenario-driven challenges, we discuss requirements and options for realizing a blockchain-based trustworthy information store and outline its use for automation to achieve a reliable sharing of product information, efficient and dependable collaboration, and dynamic distributed markets without requiring established long-term trust.

State-of-the-art of long-term preservation in product lifecycle management

2012 ◽  
Vol 12 (1) ◽  
pp. 27-39 ◽  
Author(s):  
Jörg Brunsmann ◽  
Wolfgang Wilkes ◽  
Gunter Schlageter ◽  
Matthias Hemmje
Keyword(s):  
State Of The Art ◽  
Product Lifecycle Management ◽  
Product Lifecycle ◽  
Lifecycle Management ◽  
Long Term Preservation

scholarly journals Towards Support for Long-Term Digital Preservation in Product Life Cycle Management

2011 ◽  
Vol 6 (1) ◽  
pp. 282-296 ◽  
Author(s):  
Wolfgang Wilkes ◽  
Jörg Brunsmann ◽  
Dominic Heutelbeck ◽  
Andreas Hundsdörfer ◽  
Matthias Hemmje ◽  
...  
Keyword(s):  
Life Cycle ◽  
Product Life Cycle ◽  
Life Cycle Management ◽  
Engineering Industry ◽  
Product Life ◽  
Product Life Cycle Management ◽  
Social Collaboration ◽  
Open Archival Information System ◽  
Long Term Preservation

Important legal and economic motivations exist for the design and engineering industry to address and integrate digital long-term preservation into product life cycle management (PLM). Investigations revealed that it is not sufficient to archive only the product design data which is created in early PLM phases, but preservation is needed for data that is produced during the entire product lifecycle including early and late phases. Data that is relevant for preservation consists of requirements analysis documents, design rationale, data that reflects experiences during product operation and also metadata like social collaboration context. In addition, also the engineering environment itself that contains specific versions of all tools and services is a candidate for preservation. This paper takes a closer look at engineering preservation use case scenarios as well as PLM characteristics and workflows that are relevant for long-term preservation. Resulting requirements for a long-term preservation system lead to an OAIS (Open Archival Information System) based system architecture and a proposed preservation service interface that respects the needs of the engineering industry.

Problems of treatment of primary openangle glaucoma in combination with thrombosis of the central retinal vein

GlaucomaNews ◽  
2020 ◽  
pp. 65-69
Author(s):  
T.E. Lipatkina ◽  
◽  
Е.V. Karlova ◽  
A.V. Zolotarev ◽  
◽  
...  
Keyword(s):  
Macular Edema ◽  
Primary Open Angle Glaucoma ◽  
Antihypertensive Drugs ◽  
Open Angle Glaucoma ◽  
Vascular Wall ◽  
Open Angle ◽  
Retinal Edema ◽  
Long Term Preservation ◽  
Central Retinal Vein

Patients with primary open-angle glaucoma (POAG) and ophthalmic hypertension have an increased likelihood of developing occlusions (thrombosis) of the central retinal vein. Different groups of antihypertensive drugs differ in their mechanism of action and may affect concomitant ocular pathology, in particular, retinal edema, which occurs, for example, in occlusion of the central retinal vein. Used in most patients with glaucoma, prostaglandin analogs can contribute to the long-term preservation of macular edema due to the effect on the permeability of the vascular wall. Preparations of other pharmacological groups, reducing the production of aqueous humor, on the contrary, may contribute to its regression. Therefore, the question of choosing a drug for antihypertensive therapy in patients with primary open-angle glaucoma and concomitant macular edema is relevant and is for further study.

Comparison of Polarized and Depolarized Arrest in the Isolated Rat Heart for Long-term Preservation

Circulation ◽  
1997 ◽  
Vol 96 (9) ◽  
pp. 3148-3156 ◽  
Author(s):  
A. K. Snabaitis ◽  
M. J. Shattock ◽  
D. J. Chambers
Keyword(s):  
Rat Heart ◽  
Isolated Rat Heart ◽  
Long Term Preservation ◽  
Isolated Rat

Online Publication of Monuments

2020 ◽  
pp. 355-369
Author(s):  
Willeke Wendrich
Keyword(s):  
Peer Review ◽  
3D Modeling ◽  
Online Publication ◽  
New Technologies ◽  
3D Scanning ◽  
Architectural Drawings ◽  
3D Gis ◽  
Unity 3D ◽  
Long Term Preservation

This chapter outlines the advantages of digital epigraphy in the context of the original monuments. It analyzes the perception of epigraphic publication of monuments, taking into account new technologies. 3DVR models can be created using architectural drawings and measurements (CAD and 3D modeling), 3D scanning, and Structure for Motion (SfM). These systems present different advantages and challenges, which are discussed. Current options for publication include VSim, 3D GIS, and Unity 3D platforms. The issues of peer review of publications and long-term preservation of data are addressed. The chapter concludes with a consideration of the issue of potentially misleading impressions given by 3DVR representations.

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