Effectiveness of different requirements checklists for novice designers

2021 ◽  
pp. 1-25
Author(s):  
Stefania Altavilla ◽  
Niccolò Becattini ◽  
Lorenzo Fiorineschi ◽  
Federico Rotini
Keyword(s):  
Engineering Students ◽  
Specific Design ◽  
Design Constraints ◽  
Innovative Design ◽  
Requirement Definition ◽  
Abstract Stimuli ◽  
Novice Designers ◽  
Project Objectives ◽  
Constrained Conditions ◽  
Or Task

Working under constrained conditions can boost or kill creativity, depending on the nature of the constraints (organizational, personal or task-related). However, a design process without clearly identified constraints, which set the project objectives, could lead to inefficiencies and unfruitful iterations. Some of the most acknowledged procedures to support requirement definition are focused on the use of specific checklists. However, notwithstanding the importance of the task, little attention was dedicated to the verification of the effectiveness of these tools. In such a context, the paper presents an investigation aimed at assessing the performance of three checklists that exploit different strategies to elicit requirements. To that purpose, a sample of fifty engineering students was asked to use the checklists to define the requirements for a specific design case. The outcomes of the experiment were assessed according to well-acknowledged effectiveness metrics, i.e. quantity, operationality, validity, non-redundancy, and completeness. The result of the assessment highlights that checklists based on more general questions or abstract stimuli can better support novice designers in making explicit internally felt design constraints that can potentially lead to more innovative design.

Innovative Design Based on Topological Analysis of Rope-Type Long-Link Grippers

2010 ◽  
Vol 29-32 ◽  
pp. 1274-1278
Author(s):  
Wan Chun Zhou ◽  
Tong Zhou
Keyword(s):  
Topological Analysis ◽  
Kinematic Chain ◽  
Structural Type ◽  
Similar Function ◽  
Specific Design ◽  
Topological Map ◽  
Design Constraints ◽  
Innovative Design ◽  
Kinematic Chains ◽  
Chain Maps

In this thesis, the author first analyzed the topological structure of the original mechanism. On this basis, the topological map and a series of kinematic chain maps which meet the requirements have been constructed with graph theory. Then the types of various components were designated based on specific design constraints, and generalized kinematic chains were turned into the new mechanism having the same or similar function with the original mechanism. Designers can value them comprehensively and screen out the good structural type. The method is regarded as a workable and efficient method for development and design of new products.

Design for Additive Manufacturing Inspired by TRIZ

2018 ◽  
Author(s):  
Jared Gross ◽  
Kijung Park ◽  
Gül E. Okudan Kremer
Keyword(s):  
Additive Manufacturing ◽  
Design Decision ◽  
Design For Additive Manufacturing ◽  
Specific Design ◽  
Innovative Design ◽  
Creative Solutions ◽  
Design Solutions ◽  
Manufacturing Techniques ◽  
Effective Design ◽  
Matrix Case

With the rise in popularity of additive manufacturing (AM), relevant design methodologies have become necessary for designers to reap the full benefits from this technology. TRIZ is a problem-solving tool developed to assist with innovative and creative solutions. This paper aims to create a new TRIZ matrix specifically developed for designers using additive manufacturing. The TRIZ matrix offers designers general innovative design solutions to improve specific features of a design while not sacrificing the effectiveness of other features. The proposed matrix can help effective design decision making for additive manufacturing in an early design process as well as a redesign process. Also, a design for additive manufacturing (DfAM) worksheet is provided to enable users to easily find specific design solutions for certain additive manufacturing techniques based on the general solutions derived by the TRIZ matrix. To illustrate the potential of this AM specific TRIZ matrix, case studies are presented.

The Innovative Design of Airliner Front Landing Gear Mechanism

2012 ◽  
Vol 433-440 ◽  
pp. 1519-1522 ◽  
Author(s):  
Wan Chun Zhou ◽  
Jing Wang
Keyword(s):  
Topological Structure ◽  
Mechanical Device ◽  
Special Design ◽  
Design Constraints ◽  
Innovative Design ◽  
Kinematic Chains ◽  
Original Product ◽  
Gear Mechanism ◽  
Number Synthesis ◽  
Synthesis Of Mechanism

On the basis of the existing mechanism, we can induce the topological structure of the original mechanism. By using the number synthesis of mechanism, we can find the link assortment which can satisfy topological structure of the original mechanism. By using permutation, we can obtain the generalized kinematic chains. According to the special design constraints, after appointing each link and kinematic pair, we can gain all the suitable feasible specialized chains. Then making a converse reasoning based on the generalized principle, we will finally integrate the schematic diagram of mechanism suitable for our design purpose. Therefore, if we make a kinematic and a dynamic analysis on mechanism based on this, after structural designing, we can find a new mechanical device whose performance is up to or even superior to that of the original product.

scholarly journals Design of Low Power & Area Efficient of 8-Bit Comparator using GDI Technique

2020 ◽  
pp. 62-65
Author(s):  
Pyasa Dileep and A Satyanarayana B Sangeeth Kumar,
Keyword(s):  
Low Power ◽  
High Speed ◽  
Portable Devices ◽  
Design Constraints ◽  
Innovative Design ◽  
Chip Area ◽  
Recent Trends ◽  
On Chip ◽  
Minimal Hardware ◽  
Selection Of

In this paper we are design a circuit based on data selector and distributor networks in which we will not realize the circuit based upon the expressions but off course the circuit which have designed will have internally some expression. In the recent trends the need for low power and less on-chip area is on high note for the portable devices. In this project we want to focus on the design constraints of VLSI. Innovative design of 8-Bit GDI based Comparator will be proposed and implemented. Optimization depends on selection of GDI Cell as well as selection of primary inputs to the terminals of GDI cell. 8-Bit GDI based Comparator will be designed and simulated using Tanner EDATool. Comparator has three main outputs where it can compare the weight of two words and generates three functions. GDI has the advantage of low power consumption because the total number of logic devices needed willbe less and it can also operate with high speed due to affective realization of logic using minimal hardware. Comparator circuits is designed using tanner tools and also observe the simulation results in H-SPICE attaining low power and less delay.

An Innovative Design Approach to New Service Development Learning Processes

2014 ◽  
Vol 6 (4) ◽  
pp. 27-39 ◽  
Author(s):  
Shai Rozenes ◽  
Ida Kukliansky
Keyword(s):  
Engineering Students ◽  
Academic Program ◽  
Contextual Learning ◽  
Service Development ◽  
New Service Development ◽  
Innovative Design ◽  
Know How ◽  
Practical Project ◽  
Novel Approach ◽  
Quantitative Tool

The new service development discipline is expanding within many business activities. This discipline can facilitate strivings toward successful accomplishment of a sustainable entrepreneurship. Therefore, many academic institutes teach courses within this domain. This study presents a novel approach that educates engineering students to become successful entrepreneurs based on contextual learning. This approach embeds a practical project within the academic program. The student has to implement the academic know-how into the embedded project. The study utilizes a quantitative tool to measure the students' response to the approach. The results indicate that the students were satisfied with the approach.

scholarly journals Creativity under Strong Constraints: the Hidden Influence of Design Models

2017 ◽  
Vol 25 (2) ◽  
pp. 194-207 ◽  
Author(s):  
Armand Hatchuel ◽  
Milena Klasing Chen
Keyword(s):  
Engineering Design ◽  
Negative Impact ◽  
Design Model ◽  
Primary Sources ◽  
Design Constraints ◽  
Innovative Design ◽  
Design Models ◽  
Rule Based ◽  
Positive Effect ◽  
Negative Link

In engineering design, constraints can stimulate creativity but are also often cited as obstacles to innovation. So do constraints hinder or foster creativity? Despite a number of studies, the reason why constraints can have a positive or a negative impact on creativity is still unknown. In this paper, we will propose, theoretically and empirically, that the link between creativity and constraints is not determined by the type of constraints, but by the type of ‘design model’ used. Using C-K theory, a well-documented, general, and formalized theory of design, we first prove that the dual impact of constraints on creativity is predictable. Then we use C-K operators to distinguish two different design models: rule-based design and innovative design. We show that the first model organizes a negative link between constraints and creativity while the second model enables a positive effect. We illustrate these mechanisms through the analysis of several product developments based on both secondary and primary sources.

On the Benefits and Pitfalls of Analogies for Innovative Design: Ideation Performance Based on Analogical Distance, Commonness, and Modality of Examples

2011 ◽  
Vol 133 (8) ◽  
Author(s):  
Joel Chan ◽  
Katherine Fu ◽  
Christian Schunn ◽  
Jonathan Cagan ◽  
Kristin Wood ◽  
...  
Keyword(s):  
Engineering Students ◽  
Near Field ◽  
Control Group ◽  
Far Field ◽  
Solution Concepts ◽  
Innovative Design ◽  
Positive Effects ◽  
Engineering Design Problem ◽  
Design By Analogy

Drawing inspiration from examples by analogy can be a powerful tool for innovative design during conceptual ideation but also carries the risk of negative design outcomes (e.g., design fixation), depending on key properties of examples. Understanding these properties is critical for effectively harnessing the power of analogy. The current research explores how variations in analogical distance, commonness, and representation modality influence the effects of examples on conceptual ideation. Senior-level engineering students generated solution concepts for an engineering design problem with or without provided examples drawn from the U.S. Patent database. Examples were crossed by analogical distance (near-field vs. far-field), commonness (more vs. less-common), and modality (picture vs. text). A control group that received no examples was included for comparison. Effects were examined on a mixture of ideation process and product variables. Our results show positive effects of far-field and less-common examples on novelty and variability in quality of solution concepts. These effects are not modulated by modality. However, detailed analyses of process variables suggest divergent inspiration pathways for far-field vs. less-common examples. Additionally, the combination of far-field, less-common examples resulted in more novel concepts than in the control group. These findings suggest guidelines for the effective design and implementation of design-by-analogy methods, particularly a focus on far-field, less-common examples during the ideation process.

Innovative Design Based on Prototypes of the Main Mechanism of Table Lamp

2012 ◽  
Vol 198-199 ◽  
pp. 189-192
Author(s):  
Wan Chun Zhou ◽  
Jian Jun Lu
Keyword(s):  
Topological Structure ◽  
Kinematic Chain ◽  
Main Mechanism ◽  
Schematic Diagram ◽  
Design Constraints ◽  
Innovative Design ◽  
Kinematic Chains ◽  
Structure Characteristics ◽  
Practical Design ◽  
Number Synthesis

On the basis of analyzing the topological structure of an original mechanism, it leads to the generalized kinematic chain meeting the same topological structure characteristics of the original mechanism in accordance with the generalized principle of mechanism, number synthesis of kinematic chain and compound hings. Allocation of ground links and performing links in the kinematic chain can get all feasible specialized kinematic chains while considering practical design constraints. In the final step, concrete schematic diagram of mechanism being restored from specialized kinematic chains leads to a series of new mechanism different from the original one. Designers ascertain appropriate new mechanism after selection and analysis.

Design of a Heat Recovery Steam Generator

1984 ◽  
Author(s):  
David R. Logeais
Keyword(s):  
Steam Generator ◽  
Heat Recovery ◽  
Size Range ◽  
Operating Conditions ◽  
Heat Recovery Steam Generator ◽  
Construction Work ◽  
Design Constraints ◽  
Innovative Design ◽  
Wide Range ◽  
Steam Production

A gas turbine in the size range of 20,000 hp (14.9 MW) was retrofitted with a heat recovery steam generator (HRSG). The HRSG produces high pressure superheated steam for use in a steam turbine. Supplementary firing is used to more than double the steam production over the unfired case. Because of many unusual constraints, an innovative design of the HRSG was formulated. These design constraints included: 1. A wide range of operating conditions was to be accommodated. 2. Very limited space in the existing plant. 3. A desire to limit the field construction work necessary in order to provide a short turn-around time. This paper will discuss the design used to satisfy these conditions.

INSTILLING ENGINEERING STUDENTS WITH SOCIAL RESPONSIBILITY: TECHNOLOGICAL STEWARDSHIP

2019 ◽  
Author(s):  
Katherina V. Tarnai-Lokhorst
Keyword(s):  
Engineering Students ◽  
Project Based Learning ◽  
Education Students ◽  
Group Discussions ◽  
Innovative Design ◽  
The Public ◽  
Ethical Implications ◽  
Video Recordings ◽  
Term Paper

Stewards of the implementation of technology in society, engineers regularly balance innovative design with their primary mandate: protection of the public interest. As technological stewardship achieves higher priorities within the requirements of engineering education, students must learn to acknowledge their obligation to society by deeply reflecting on the ethical implications of engineering design. Mech410T– Engineering in Society: Technological Stewardship is a new, fully-online course that guides students through a comprehensive assessment of this obligation using case study analyses, small group discussions, and team-based, project-based learning. The module activities consist of assigned readings; video recordings of the topic overview and a series of interviews with key partners within the engineering community, including practitioners, stakeholders and regulators; module quizzes; discussion posts; and a term paper, researched and written as a team.  

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