On the Difficulties of Raising the Level of Abstraction and Facilitating Reuse in Software Modelling: The Case for Signature Extension

Author(s):  
Matthias Schottle ◽  
Jorg Kienzle
2014 ◽  
Vol 45 (5) ◽  
pp. 408-420 ◽  
Author(s):  
Michela Menegatti ◽  
Monica Rubini

Two studies examined whether individuals vary the level of abstraction of messages composed to achieve the relational goals of initiating, maintaining, and ending a romantic relationships when the goal of communication was self-disclosure or persuading one’s partner. Study 1 showed that abstract language was preferred to disclose thoughts and feelings about initiating a romantic relationship or to persuade the partner to consolidate a long-term one. Study 2 revealed that participants used abstract terms to persuade the partner to continue a problematic relationship and to disclose their thoughts on ending it. These results show that language abstraction is a flexible means to handle individuals’ goals and influence the course of romantic relationships.


2016 ◽  
Vol 20 (3) ◽  
pp. 326-337
Author(s):  
Steve Hedley

In this article, Professor Steve Hedley offers a Common Law response to he recently published arguments of Professor Nils Jansen on the German law of unjustified enrichment (as to which, see Jansen, “Farewell to Unjustified Enrichment” (2016) 20 EdinLR 123). The author takes the view that Jansen's paper provided a welcome opportunity to reconsider not merely what unjust enrichment can logically be, but what it is for. He argues that unjust enrichment talk contributes little of value, and that the supposedly logical process of stating it at a high level of abstraction, and then seeking to deduce the law from that abstraction, merely distracts lawyers from the equities of the cases they consider.


Author(s):  
Martin L. Weitzman

In theory, and under some very strong assumptions, there exists a tight quantitative relationship among the following four fundamental economic concepts: (1) ‘wealth’; (2) ‘income’; (3) ‘sustainability’; (4) ‘accounting’. These four basic concepts are placed in quotation marks here because a necessary first step will be to carefully and rigorously define what exactly is meant by each. This chapter reviews what is known about this important fourfold quantitative relationship in an ultra-simplified setting. It identifies some basic applications of this simplified economic theory of wealth and income (and sustainability and accounting). While the contents of this chapter are expressed at a very high level of abstraction and require many restrictive assumptions, the fundamental fourfold relationship it sharply highlights should be useful for conceptualizing, at least in principle, what is ‘wealth’ and what is its theoretical relationship to ‘income’, ‘sustainability’, and ‘accounting’.


2020 ◽  
Vol 177 ◽  
pp. 03011
Author(s):  
Yuliya Lagunova ◽  
Victor Shestakov ◽  
Nazira Ibrayeva

The paper considers a software-modelling structure for solving the problem of crushing of solid materials, mountain mineral raw materials of different strength and composition. The task is to study the movement of a piece along the crushing chamber of a cone crusher, the stages of destruction of pieces are considered. Setting the main parameters of the FCC, the working process of the crusher and the parameters of the destruction of pieces in the crushing chamber. The study of the basic characteristics of the movement process, the interaction and destruction of pieces is the main aspect of the work process. More precisely, the issues were examined, on the basis of which the dependencies were compiled, which are used in the algorithm of the model of the working process of FCC at the beginning of the cycle of the mode of movement. One of the processes considered in the article is squeezing a piece between the armors with a subsequent decrease in the distance between the armors.


2019 ◽  
Vol 6 (1) ◽  
pp. 1-12
Author(s):  
Heris Hendriana ◽  
Nelly Fitriani

Previous research regarding abstraction has not discussed abstraction qualitatively based on van Hiele levels. Thus, it is necessary to study abstraction analysis based on van Hiele levels through Realistic Mathematics Education (RME) approach. The purpose of this research was to analyze mathematical abstraction based on van Hiele levels of geometry (VHLG) through RME and traditional learning approach reviewed from the levels of prior knowledge. This research employed a descriptive qualitative method involving Year 9 junior high school students as the subjects. The instruments were a mathematical abstraction test, van Hiele geometry test, and interview guidelines. The results of the high- and medium-ability students in the classroom using RME approach showed that VHLG was at the Deduction level and the abstraction ability was dominated by Empirical and Reflective Abstraction, whereas the low-ability students are at the level of Abstraction, they had imperfect Empirical and Reflective Abstraction. As for the high-ability students in the traditional learning classroom, the VHLG was at the level of Abstraction; their Reflective Abstraction was at the Representation level. While concerning the low- and medium-ability students, the VHLG was at the Analysis level; they mastered the Reflective Abstraction at the level of Recognition. This study indicates that the RME approach can trigger the development of mathematical abstraction, and accelerate the van Hiele levels of geometry progress.


2011 ◽  
Vol 2011 (93) ◽  
Author(s):  
Kamil Stachowski

The article attempts to determine what kind of transcription is best suited for (Turkic) comparative studies. Five questions are asked: what are the features of an ideal transcription, what level of abstraction is most useful, what notation system is most practical, and is it possible for a single transcription to encompass the entire Turkic family. Ultimately, a set of basic rules is proposed together with a small exemplification. 


2021 ◽  
pp. 12-20
Author(s):  
Sergey Kondakov ◽  
◽  
Ilya Rud ◽  

Purpose of work: development of a model of the process of conducting a computer attack. Research method: theory of complex systems, comparative analysis within the framework of system analysis and synthesis. Result: it is shown that the application of the proposed model of the process of conducting computer attacks allows you to fully describe the process, taking into account its inherent features and characteristics. The use in the model of information from the MITRE ATTACK database of Mitre, which contains a description of the tactics, techniques and methods used by cybercriminals, allows you to reduce the level of abstraction and describe specific scenarios for conducting complex targeted computer attacks with the maximum approximation to practice. The developed model is supposed to be used to form scenarios of computer attacks when assessing the security of information systems.


2012 ◽  
Vol 134 (4) ◽  
Author(s):  
Benjamin W. Caldwell ◽  
Gregory M. Mocko

Function modeling is often used in the conceptual design phase as an approach to capture a form-independent purpose of a product. Previous research uses a repository of reverse-engineered function models to support conceptual-based design tools, such as similarity and design-by-analogy. These models, however, are created at a different level of abstraction than models created in conceptual design for new products. In this paper, a set of pruning rules is developed to generate an abstract, conceptual-level model from a reverse-engineered function model. The conceptual-level models are compared to two additional levels of abstraction that are available in a design repository. The abstract models developed through the pruning rules are tested using a similarity metric to understand their usefulness in conceptual design. The similarity of 128 products is computed using the Functional Basis controlled vocabulary and a matrix-based similarity metric at each level of abstraction. A matrix-based clustering algorithm is then applied to the similarity results to identify groups of similar products. A subset of these products is studied to further compare the three levels of abstraction and to validate the pruning rules. It is shown that the pruning rules are able to convert reverse-engineered function models to conceptual-level models, better supporting design-by-analogy, a conceptual-stage design activity.


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