Model granularity in engineering design - Concepts and framework

被引：40
作者：
Maier J.F. [1 ]
Eckert C.M. [2 ]
John Clarkson P. [1 ]
机构：
[1] Department of Engineering, University of Cambridge, Cambridge
[2] Engineering and Innovation, Open University, Milton Keynes
来源：
Design Science | 2017年 / 3卷
基金：
英国工程与自然科学研究理事会;
关键词：
design structure matrix; model granularity; model theory; modelling and simulation;
D O I：
10.1017/dsj.2016.16
中图分类号：
学科分类号：
摘要：
In many engineering design contexts models are indispensable. They offer decision support and help tackle complex and interconnected design projects, capturing the underlying structure of development processes or resulting products. Because managers and engineers base many decisions on models, it is crucial to understand their properties and how these might influence their behaviour. The level of detail, or granularity, of a model is a key attribute that results from how reality is abstracted in the modelling process. Despite the direct impact granularity has on the use of a model, the general topic has so far only received limited attention and is therefore not well understood or documented. This article provides background on model theory, explores relevant terminology from a range of fields and discusses the implications for engineering design. Based on this, a classification framework is synthesised, which outlines the main manifestations of model granularity. This research contributes to theory by scrutinising the nature of model granularity. It also illustrates how this may manifest in engineering design models, using Design Structure Matrices as an example, and discusses associated challenges to provide a resource for modellers navigating decisions regarding granularity. Copyright © The Author(s) 2017.
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