Towards a Modelling and Design Framework for Mixed-Criticality SoCs and Systems-of-Systems

2013 ◽  
Author(s):  
Fernando Herrera ◽  
Seyed Hosein Attarzadeh Niaki ◽  
Ingo Sander
Keyword(s):  
Design Framework ◽  
Systems Of Systems ◽  
Mixed Criticality

A Novel Framework for Simultaneous Topology and Sizing Optimization of Complex, Multi-Domain Systems-of-Systems

2020 ◽  
Vol 142 (9) ◽  
Author(s):  
Donald J. Docimo ◽  
Ziliang Kang ◽  
Kai A. James ◽  
Andrew G. Alleyne
Keyword(s):  
Case Studies ◽  
Cooling System ◽  
Optimization Procedure ◽  
Design Framework ◽  
Sizing Optimization ◽  
Systems Of Systems ◽  
Analysis Of Alternatives ◽  
Subsystem Design ◽  
System Graph ◽  
Graph Based Model

Abstract This article presents a novel design framework for topology and component sizing optimization of multi-domain dynamic systems described by conservation laws. Multidisciplinary design optimization (MDO) is a powerful tool for minimizing metrics such as inefficiency and cost for these systems-of-systems (SoS). However, quality of the designs identified from the optimization procedure depends on model accuracy and ability to capture inter-system interactions. This work utilizes a conservation-based, graphical modeling approach to capture physical system dynamics and interactions, and expands it to be used in MDO techniques. This yields three contributions to the literature. First, an augmented graph-based model is provided, expressing continuous and discrete design variable values as changes to vertex size, edge size, and edge connections of the dynamic system graph. Second, a sizing and topology optimization framework is developed using the augmented graph-based model as a basis. Third, analytical and numerical sensitivity functions are derived for a cooling system design problem, stemming from application of the design framework. The design framework is applied to two case studies for cooling subsystem design and electric vehicle (EV) powertrain design, with the goal of optimizing thermal and electrical component sizes, as well as discrete choices in the topology of the system being designed. These case studies provide examples for how the design framework enables analysis of alternatives (AoA) during early design stages.

The adaptation of design thinking in auditing

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Linda MEIJER-WASSENAAR ◽  
Diny VAN EST
Keyword(s):  
The Netherlands ◽  
Design Thinking ◽  
Public Organizations ◽  
Design Framework ◽  
The Right ◽  
The Way

How can a supreme audit institution (SAI) use design thinking in auditing? SAIs audit the way taxpayers’ money is collected and spent. Adding design thinking to their activities is not to be taken lightly. SAIs independently check whether public organizations have done the right things in the right way, but the organizations might not be willing to act upon a SAI’s recommendations. Can you imagine the role of design in audits? In this paper we share our experiences of some design approaches in the work of one SAI: the Netherlands Court of Audit (NCA). Design thinking needs to be adapted (Dorst, 2015a) before it can be used by SAIs such as the NCA in order to reflect their independent, autonomous status. To dive deeper into design thinking, Buchanan’s design framework (2015) and different ways of reasoning (Dorst, 2015b) are used to explore how design thinking can be adapted for audits.

Systems of Systems Paradigm in a Hospital Environment: Benefits for Requirements Elicitation Process

2014 ◽  
Vol 9 (10) ◽  
pp. 1798 ◽  
Author(s):  
Farid Lahboube ◽  
Saida Haidrar ◽  
Ounsa Roudiès ◽  
Nissrine Souissi ◽  
Anwar Adil
Keyword(s):  
Requirements Elicitation ◽  
Hospital Environment ◽  
Systems Of Systems ◽  
Elicitation Process
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