Methods for Evaluating the Quality of Process Modelling Tools

2018 ◽  
pp. 171-177 ◽  
Author(s):  
Josef Pavlicek ◽  
Petra Pavlickova
Keyword(s):  
Process Modelling

Towards Data Driven Stamping Process Modelling by Optical Inline Monitoring of Cutting Surface Parameters

2021 ◽  
Author(s):  
Maximilian Lorenz ◽  
Matthias Menzl ◽  
Christian Donhauser ◽  
Michael Layh ◽  
Bernd R. Pinzer
Keyword(s):  
Quantitative Description ◽  
Quality Metrics ◽  
Process Modelling ◽  
Data Driven ◽  
Cutting Surface ◽  
Image Capturing ◽  
The Status ◽  
Data Driven Approach ◽  
Cut Surface

Abstract Stamping is a wide-spread production process, applied when massive amounts of the ever-same cheap parts are needed. For this reason, a highly efficient process is crucial. The cutting process is sensitive to a multitude of parameters. A process that is not correctly adjusted is subject to considerable wear and therefore not efficient. Unfortunately, the precise dependencies are often unknown. A prerequisite for optimal, reproducible and transparent process alignment is the knowledge of how exactly parameters influence the quality of a cutting part, which in turn requires a quantitative description of the quality of a part. A data driven approach allows to meet this challenge and quantify these influences. We developed an optical inline monitoring system, which consists of a image capturing, triangulation and image processing, that is capable of deriving quality metrics from 2D images and triangulation data of the cutting surface, directly inside the machine and without affecting the process. We identify features that can be automatically turned into quality metrics, like fraction of the burnish surface or the cut surface inclination. As an application, we show that the status of tool wear can be inferred by monitoring the burnish surface, with immediate consequences for predictive maintenance. Furthermore, we conclude that connecting machine and process parameters with quality metrics in real time for every single part enables data driven process modelling and ultimately the implementation of intelligent stamping machines.

Fabrikplanungsspezifische Modellierungssprache*/Modeling language for factory planning

2015 ◽  
Vol 105 (04) ◽  
pp. 179-183
Author(s):  
S. Tschöpe ◽  
C. Koltze ◽  
P. Nyhuis
Keyword(s):  
Information Acquisition ◽  
Process Modelling ◽  
Modeling Language ◽  
Modelling Language ◽  
Quality Of Results ◽  
Factory Planning ◽  
Structured Information

In Fabrikplanungsprojekten werden Informationen zu Produkten, Prozessen sowie Restriktionen weitestgehend unabhängig voneinander aufgenommen. Dadurch entstehen Redundanzen und wichtige Korrelationen bleiben teilweise unerkannt. Die Qualität der Ergebnisse hängt somit vom Fachwissen des Fabrikplaners ab. Der Fachbeitrag stellt das Konzept für eine Prozessmodellierungssprache vor. Diese Sprache strukturiert ganzheitlich die Informationsbeschaffung und -darstellung im Rahmen von Fabrikplanungsprojekten.   In factory planning projects information of products, processes and restrictions are aggregated independently. Thus, redundancy occurs and important correlations remain undetected. The quality of results relies upon the factory planner’s expertise. Within this article, a process modelling language for a structured information acquisition and presentation in the context of factory planning projects is presented.

Library education: Global and regional problems (experience of Chelyabinsk State Institute of Culture)

2020 ◽  
Author(s):  
Irina Yu. Matveeva ◽  
Keyword(s):  
Higher Education ◽  
Learning Process ◽  
Process Modelling ◽  
Quality Of Education ◽  
Education Reforms ◽  
State Institute ◽  
Library Education ◽  
E Learning ◽  
Regional Problems

The higher library education is examined within the framework of reforming higher education in Russia. Incoherence of the education reforms produced the dilemmas between the demands of universal character and specialization in library education, preservation of traditional content and need for innovativeness; orientation toward library context and beyond-library context; priority of learning process modelling and quality of education; possibility of implementing e-learning and institutes’ desiring to keep academic load. The author describes how these dilemmas are being overcome at Chelyabinsk State Institute of Culture.

scholarly journals Quality Evaluation of EPC to BPMN Business Process Model Transformation

2020 ◽  
Vol 5 (2) ◽  
pp. 207
Author(s):  
Ahsanun Naseh Khudori ◽  
Tri Astoto Kurniawan ◽  
Fatwa Ramdani
Keyword(s):  
Business Process ◽  
Model Transformation ◽  
Process Model ◽  
Business Processes ◽  
Experimental Approach ◽  
Process Modelling ◽  
Process Models ◽  
Business Process Modelling ◽  
Scientific Approach

Due to the expressiveness of BPMN for representing the business processes, it has replaced EPC as a de-facto process modelling standard. As such, enterprises require to transform their existing EPC business process models to BPMN to keep their competitiveness. ARIS Architect & Designer, as a popular business process modelling tool, provides a model transformation feature, e.g., EPC to BPMN. For the sake of quality, it must guarantee that the resulting model has syntactic correctness and syntactic completeness. However, there is currently limited scientific approach available to evaluate the quality of the model transformation in ARIS Architect & Designer. This study proposes an evaluation of model transformation in ARIS Architect/Designer based on syntactic correctness and syntactic completeness criteria using an experimental approach. The result shows the model transformation in ARIS Architect/Designer has not completely fulfilled the criteria. The result opens further research challenges to improve the quality of EPC to BPMN model transformation.

Integrating IP-Maps with Business Process Modelling

2011 ◽  
pp. 145-167
Author(s):  
Elizabeth M. Pierce
Keyword(s):  
Business Process ◽  
Software Package ◽  
Business Processes ◽  
Extended Family ◽  
Process Modelling ◽  
Process Chain ◽  
Communication Structure ◽  
Business Process Modelling ◽  
Information Products

This paper takes the basic constructs of the IP-Map diagram and demonstrates how they can be combined with the Event-Driven Process Chain Methodology’s family of diagrams. This extended family of diagrams can be used to more fully describe the organizational, procedural, informational, and communication structure of a business process while at the same time highlighting the manufacture of the information products used by that business process. The paper concludes with a review of requirements for a software package that will allow analysts to model and explore their business processes with an emphasis on improving the quality of the organization’s information products.

Immunoferritin localization of intracellular antigens in positively stained frozen sections

1978 ◽  
Vol 36 (2) ◽  
pp. 168-169
Author(s):  
K. T. Tokuyasu
Keyword(s):  
Surface Tension ◽  
Water Surface ◽  
Thin Layers ◽  
The Other ◽  
Positive Staining ◽  
Frozen Sections ◽  
The Past ◽  
Ultrathin Frozen Sections ◽  
Definition Of

During the past investigations of immunoferritin localization of intracellular antigens in ultrathin frozen sections, we found that the degree of negative staining required to delineate u1trastructural details was often too dense for the recognition of ferritin particles. The quality of positive staining of ultrathin frozen sections, on the other hand, has generally been far inferior to that attainable in conventional plastic embedded sections, particularly in the definition of membranes. As we discussed before, a main cause of this difficulty seemed to be the vulnerability of frozen sections to the damaging effects of air-water surface tension at the time of drying of the sections.Indeed, we found that the quality of positive staining is greatly improved when positively stained frozen sections are protected against the effects of surface tension by embedding them in thin layers of mechanically stable materials at the time of drying (unpublished).

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