Functions in the Early Phase of Product Development: A Systematic Literature Review

Fahl, Joshua; Hirschter, Tobias; Haag, Steffen; Staiger, Tim; Albers, Albert

doi:10.1109/isse49799.2020.9272238

Cited by 4 publications

(3 citation statements)

References 37 publications

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“…(Vermaas 2010) A similar literature study by Fahl et al concluded that functions can be described from a technical perspective and an environmental or human-centered perspective. (Fahl et al 2020) Change and transformation are commonly used terms in the definition of functions, as also concluded by Eisenbart. (Eisenbart 2014) Similarly, Fahl et al identified that for the formulation of functions multiple options are available.…”

Section: Problem Statementmentioning

confidence: 91%

“…To increase the level of detail the combination of verb and noun can be expanded with adverbs or attributes. (Fahl et al 2020) An example is discussed using an automotive e-axle, as shown in figure 1. First a function analysis of the existing e-axle is conducted, followed by a design synthesis to proceed from an existing function description to the technical solution.…”

Section: Problem Statementmentioning

confidence: 99%

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Descriptive Functions and the Role of Artificial Intelligence

Bajzek,

Krems,

Faustmann

et al. 2023

INCOSE International Symp

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This paper describes concepts to support the application of descriptive functions using artificial intelligence technologies. Descriptive functions are typically used in the system design phase to describe and specify the system behavior. In a model‐based systems engineering approach the system functions, their dependencies, and the allocation to the technical solution are typically documented in system models. Descriptive functions have a fuzziness that is beneficial in the solution finding process but also challenging in terms of development efficiency. To support development teams in formulation and working with descriptive functions in system design, and verification and validation phase several concepts with the use of artificial intelligence technologies are discussed.

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Section: Problem Statementmentioning

confidence: 91%

Section: Problem Statementmentioning

confidence: 99%

Descriptive Functions and the Role of Artificial Intelligence

Bajzek,

Krems,

Faustmann

et al. 2023

INCOSE International Symp

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“…In addition, conceptual design theories comprehensively discuss the interactions between the user and the Technical System, discussing the many causes responsible for misuse in a broader and deeper way than robust design approaches do [32]. In conceptual design theories, ample space is devoted to user interface, Function, and manipulation.…”

mentioning

confidence: 99%

A Systematic Robust Design Method to Reduce Products’ Environmental Impact Variations

Spreafico

2022

Knowledge

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Reducing the environmental impact of a device arising from unexpected failures should be an environmental goal. However, this problem can be difficult to tackle, especially due to the limitations of the traditional eco-design methods, which are more used to reduce the baseline impacts. This study proposes a novel method to overcome this limitation, working at the intersection of conceptual design, robust design, and eco-assessment. Based on the inquiry-based approach, the method consists of 52 questions, systematically organised on 4 hierarchical levels dedicated to the formulation of the initial environmental problem, the definition of the design goal, and the strategy and the selection of the methods, tools, and solutions to be applied. The method was applied in two real case studies about an adsorption air dryer and a medium-voltage circuit breaker by providing different solutions, where the most promising one was able to avoid the environmental impact variations up to 2% of the total impacts of the device. The method could be a starting point to build a design theory that is dedicated to this sector, still largely unexplored, while this vocation towards conceptual design is an appeal for a contamination of the more routine fields of robust and eco-design on the educational, application, and research levels.

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