scholarly journals Connections Between the Design Tool, Design Attributes, and User Preferences in Early Stage Design

2015 ◽  
Vol 137 (7) ◽  
Author(s):  
Anders Häggman ◽  
Geoff Tsai ◽  
Catherine Elsen ◽  
Tomonori Honda ◽  
Maria C. Yang
Keyword(s):  
Computer Aided Design ◽  
Early Stage ◽  
User Preferences ◽  
Design Tool ◽  
Design Quality ◽  
Stage Design ◽  
Design Concepts ◽  
Design Attributes ◽  
Early Stage Design ◽  
Aided Design

Gathering user feedback on provisional design concepts early in the design process has the potential to reduce time-to-market and create more satisfying products. Among the parameters that shape user response to a product, this paper investigates how design experts use sketches, physical prototypes, and computer-aided design (CAD) to generate and represent ideas, as well as how these tools are linked to design attributes and multiple measures of design quality. Eighteen expert designers individually addressed a 2 hr design task using only sketches, foam prototypes, or CAD. It was found that prototyped designs were generated more quickly than those created using sketches or CAD. Analysis of 406 crowdsourced responses to the resulting designs showed that those created as prototypes were perceived as more novel, more aesthetically pleasing, and more comfortable to use. It was also found that designs perceived as more novel tended to fare poorly on all other measured qualities.

A review of functionality modelling in design

1994 ◽  
Vol 9 (2) ◽  
pp. 163-199 ◽  
Author(s):  
Julian Winsor ◽  
Kenneth MacCallum
Keyword(s):  
Computer Aided Design ◽  
Early Stage ◽  
Consensus Methods ◽  
Stage Design ◽  
Engineering Designs ◽  
Design Characteristics ◽  
Early Stage Design ◽  
Aided Design ◽  
Representation Types

AbstractRecently there has been an increase in the number of computer aided design systems developed explicitly representing knowledge about the functionality of engineering designs. Reviewing these systems provides an understanding of the methods workers use to encapsulate knowledge of functionality within their systems. A number of issues are addressed to reveal the nature of their approaches. The developers' perception of functionality is discussed to identify variations in understanding of function and to establish the existence of any consensus. Methods of representing this knowledge are examined, thereby identifying representation types or combinations used and the advantages to be gained from any single representation. Illustrations of the manipulation of function shows how this type of knowledge can be used to support reasoning during early stage design. A survey of relationships with other design characteristics as a testimony to the manipulation of functionality is used to impact other aspects of a design. Through knowledge of relationships some models of the design process are posited by workers. A study of these bears evidence of the role of function in design and the stages at which its use is significant.

scholarly journals Representation in Early Stage Design: An Analysis of the Influence of Sketching and Prototyping in Design Projects

2012 ◽  
Author(s):  
Catherine Elsen ◽  
Anders Häggman ◽  
Tomonori Honda ◽  
Maria C. Yang
Keyword(s):  
Design Process ◽  
Early Stage ◽  
Design Tools ◽  
Quality Of Information ◽  
Stage Design ◽  
Design Concepts ◽  
Design Projects ◽  
Early Stage Design ◽  
Team Design

Sketching and prototyping of design concepts have long been valued as tools to support productive early stage design. This study investigates previous findings about the interplay between the use and timing of use of such design tools. This study evaluates such tools in the context of team design projects. General trends and statistically significant results about “sketchstorming” and prototyping suggest that, in certain constrained contexts, the focus should be on the quality of information rather than on the quantity of information generated, and that prototyping should begin as soon as possible during the design process. Ramifications of these findings are discussed in the context of educating future designers on the efficient use of design tools.

scholarly journals The Role of Sketch Finish and Style in User Responses to Early Stage Design Concepts

2011 ◽  
Author(s):  
Bryan Macomber ◽  
Maria Yang
Keyword(s):  
Early Stage ◽  
End Users ◽  
Stage Design ◽  
Design Concepts ◽  
Design Time ◽  
Design Alternatives ◽  
Early Stage Design ◽  
Time Required

Conceptual sketches of design alternatives are often employed as a tool for eliciting feedback from design stakeholders, including potential end-users. However, such sketches can vary widely in their level of finish and style, thus potentially affecting how users respond to a concept. This paper presents a study of user responses to three objects drawn in styles ranging from rough hand sketches to CAD drawings. This study also considers the amount of design time required to create the sketches. Results show that respondents generally ranked realistic, “clean” hand sketches the highest over other types of sketches, particularly “rough” sketches. These types of sketches took longer than other types of hand sketches to create, but were still much faster than CAD renderings. Results also suggest that the complexity and familiarity of an object can influence how users respond to a sketch.

Methods of Verification and Change Management for Quality Control of Engineering Artifacts

2009 ◽  
Author(s):  
Michael Van Wie ◽  
Scott Flechsig
Keyword(s):  
Quality Control ◽  
Change Management ◽  
Early Stage ◽  
Design Quality ◽  
Stage Design ◽  
Design Iteration ◽  
Design Activities ◽  
Early Stage Design ◽  
Definition Of ◽  
Decision Based Design

This work presents a method to incorporate the principles of verification and change management in order to address the quality control of engineering artifacts in early stage design. A refined definition of quality is presented and relates design quality to design iteration. A new model, the Decision Pathway Chart (DPC), is introduced to model decisions and iteration. A method and tool for incorporating this DPC model into a process for verifying and managing change through baselining is described and validated based on criteria for evaluating decision-based design methods. The contribution of this work is to introduce a practical technique for implementing quality control principles during design activities that typically lack such rigor toward quality assurance.

The Role of Idea Fluency and Timing on Highly Innovative Design Concepts

2020 ◽  
Author(s):  
Yakira Mirabito ◽  
Kosa Goucher-Lambert
Keyword(s):  
Large Scale ◽  
Design Research ◽  
Early Stage ◽  
Deep Understanding ◽  
Concept Generation ◽  
Stage Design ◽  
Single Measure ◽  
Design Concepts ◽  
Early Stage Design ◽  
The Impact

Abstract Ongoing work within the engineering design research community seeks to develop automated design methods and tools that enhance the natural capabilities of designers in developing highly innovative concepts. Central to this vision is the ability to first obtain a deep understanding of the underlying behavior and process dynamics that predict successful performance in early-stage concept generation. The objective of this research is to better understand the predictive factors that lead to improved performance during concept generation. In particular, this work focuses on the impact of idea fluency and timing of early-stage design concepts, and their effect on overall measures of ideation session success. To accomplish this, we leverage an existing large-scale dataset containing hundreds of early-stage design concepts; each concept contains detailed ratings regarding its overall feasibility, usefulness, and novelty, as well as the completion time of each idea. Surprisingly, results indicate that there is no effect of idea fluency or timing on the quality of the output when using a holistic evaluation mechanism, such as the innovation measure, instead of a single measure such as novelty. Thus, exceptional concepts can be achieved by all generator segments independent of idea fluency. Furthermore, in early-stage concept generation sessions, highest-rated concepts have an equal probability of occurring early and late in a session. Taken together, these findings can be used to improve performance in ideation by effectively determining when and which types of design interventions future design tools might suggest.

Factors Impacting Highly Innovative Designs: Idea Fluency, Timing, and Order

2021 ◽  
pp. 1-29
Author(s):  
Yakira Mirabito ◽  
Kosa Goucher-Lambert
Keyword(s):  
Large Scale ◽  
Design Research ◽  
Early Stage ◽  
Deep Understanding ◽  
Concept Generation ◽  
Stage Design ◽  
Single Measure ◽  
Design Concepts ◽  
Early Stage Design ◽  
The Impact

Abstract Ongoing work within the engineering design research community seeks to develop automated design methods and tools that enhance the natural capabilities of designers in developing highly innovative concepts. Central to this vision is the ability to first obtain a deep understanding of the underlying behavior and process dynamics that predict successful performance in early-stage concept generation. The objective of this research is to better understand the predictive factors that lead to improved performance during concept generation. In particular, this work focuses on the impact of idea fluency and timing of early-stage design concepts, and their effect on overall measures of ideation session success. To accomplish this, we leverage an existing large-scale dataset containing hundreds of early-stage design concepts; each concept contains detailed ratings regarding its overall feasibility, usefulness, and novelty, as well as when in the ideation session the idea was recorded. Surprisingly, results indicate that there is no effect of idea fluency or timing on the quality of the output when using a holistic evaluation mechanism, such as the innovation measure, instead of a single measure such as novelty. Thus, exceptional concepts can be achieved by all participant segments independent of idea fluency. Furthermore, in early-stage concept generation sessions, highest-rated concepts have an equal probability of occurring early and late in a session. Taken together, these findings can be used to improve performance in ideation by effectively determining when and which types of design interventions future design tools might suggest.

Systematic screening of biorefinery technologies at the early stage of design

TAPPI Journal ◽  
2012 ◽  
Vol 11 (10) ◽  
pp. 21-27 ◽  
Author(s):  
JÉRÉMIE COHEN ◽  
PAUL STUART
Keyword(s):  
Ethanol Production ◽  
Early Stage ◽  
Design Tool ◽  
Government Support ◽  
Technology Readiness ◽  
Global Evaluation ◽  
Systematic Screening ◽  
Stage Design ◽  
Early Stage Design ◽  
The Many

Improving technology readiness and government support have helped some forestry companies to continue to develop their biorefinery strategies over the past few years, including that for ethanol production in some cases. These developing technologies have been proven at various scales, and data required for their evaluation are typically scarce and uncertain. How can forestry companies select the “best” technology among the many options available to them, given this complex and uncertain landscape? The objective of this paper is to demonstrate the use of an early stage design tool for screening biorefinery technologies, using ethanol production as an example. A set of multidisciplinary criteria are defined that can be interpreted by a stakeholder panel, and calculated based on publically-available data. Then, the criteria are interpreted and weighed using multi-criteria decision-making (MCDM) analysis in order to make a global evaluation of technologies relative to each other, and identify those that should not be further considered.

scholarly journals A COMPARISON OF STRUCTURED LIGHT SCANNING AND PHOTOGRAMMETRY FOR THE DIGITISATION OF PHYSICAL PROTOTYPES

2021 ◽  
Vol 1 ◽  
pp. 11-20
Author(s):  
Owen Freeman Gebler ◽  
Mark Goudswaard ◽  
Ben Hicks ◽  
David Jones ◽  
Aydin Nassehi ◽  
...  
Keyword(s):  
Early Stage ◽  
Structured Light ◽  
Superior Performance ◽  
Specific Design ◽  
Model Quality ◽  
Stage Design ◽  
Design Changes ◽  
Structured Light Scanning ◽  
Early Stage Design

AbstractPhysical prototyping during early stage design typically represents an iterative process. Commonly, a single prototype will be used throughout the process, with its form being modified as the design evolves. If the form of the prototype is not captured as each iteration occurs understanding how specific design changes impact upon the satisfaction of requirements is challenging, particularly retrospectively.In this paper two different systems for digitising physical artefacts, structured light scanning (SLS) and photogrammetry (PG), are investigated as means for capturing iterations of physical prototypes. First, a series of test artefacts are presented and procedures for operating each system are developed. Next, artefacts are digitised using both SLS and PG and resulting models are compared against a master model of each artefact. Results indicate that both systems are able to reconstruct the majority of each artefact's geometry within 0.1mm of the master, however, overall SLS demonstrated superior performance, both in terms of completion time and model quality. Additionally, the quality of PG models was far more influenced by the effort and expertise of the user compared to SLS.

Sign in / Sign up

Export Citation Format

Share Document