This document describes a method for research and development (R&D) of electronic products designed for use by independent engineers, designers, and inventors. The method was developed over 28 years through four phases of continuous optimization and was influenced by 13 existing product development models. The goal was to create a simplified method suitable for use by small teams or individuals. Key aspects of the method include discovering user requirements through interaction, generating original ideas, and conducting synchronous, functional, structural, and morphological analyses of similar products. The method also incorporates concepts from ergonomics and sustainability. It proceeds through stages of concept development, detailed design, prototype testing, and market feedback. The method aims to facilitate the creative process and design of innovative, competitive electronic
This paper developed an analytical background to scientific development conducted on the use of
Lean Manufacturing in the industries. Regarding the methodological approach to this research is exploratory and
did a literature review with a sample survey using technological resources search as a tool to perform the search
in this case, the component data bases Journals Portal Coordination and Training of Personnel Higher Level. For
this study bibliometric analysis and the selection of journals were made and the results show that the topic is
Lean Manufacturing on the rise internationally and that is a methodology mentioned in leading journals. The
scientific literature on the topic is not predominantly done by a single magazine or a single industry segment.
The contribution is in identifying the gaps of the segments of the industries with the greatest opportunities for
the application of Lean Thinking so that future studies can deepen effectively is opportunity.
The Extent of New Product Development Partnership between Universities and th...Dr. Amarjeet Singh
The importance of new product development in building both technological and technical capacity of university and firm cannot be overemphasized. Collaborations between HE and industry in NPD is conceived as mutual interaction for skills acquisition and economic improvement. The study was designed to determine the extent of new product development partnership between HEIs and the manufacturing firms. A survey was conducted, and a sample of 400 was drawn from both HE and industry; the data were then analyzed using structural equation modeling (SEM) software of EQS version 6.2.The results revealed that there is weak interaction between HE and industry, also there is no formal partnership between the two on new product development. in order to strengthen the mutual relationship, a conceptual model had been developed after a careful examination and assessment of the key factors of NPD and after preliminary CFA analysis conducted to establish the determinants of the main construct. A nine-factor model was then developed for university and industry. The study therefore recommends that higher education and industry adopt this new model for effective partnership on NPD.
Computer Science
Active and Programmable Networks
Active safety systems
Ad Hoc & Sensor Network
Ad hoc networks for pervasive communications
Adaptive, autonomic and context-aware computing
Advance Computing technology and their application
Advanced Computing Architectures and New Programming Models
Advanced control and measurement
Aeronautical Engineering,
Agent-based middleware
Alert applications
Automotive, marine and aero-space control and all other control applications
Autonomic and self-managing middleware
Autonomous vehicle
Biochemistry
Bioinformatics
BioTechnology(Chemistry, Mathematics, Statistics, Geology)
Broadband and intelligent networks
Broadband wireless technologies
CAD/CAM/CAT/CIM
Call admission and flow/congestion control
Capacity planning and dimensioning
Changing Access to Patient Information
Channel capacity modelling and analysis
Civil Engineering,
Cloud Computing and Applications
Collaborative applications
Communication application
Communication architectures for pervasive computing
Communication systems
Computational intelligence
Computer and microprocessor-based control
Computer Architecture and Embedded Systems
Computer Business
Computer Sciences and Applications
Computer Vision
Computer-based information systems in health care
Computing Ethics
Computing Practices & Applications
Congestion and/or Flow Control
Content Distribution
Context-awareness and middleware
Creativity in Internet management and retailing
Cross-layer design and Physical layer based issue
Cryptography
Data Base Management
Data fusion
Data Mining
Data retrieval
Data Storage Management
Decision analysis methods
Decision making
Digital Economy and Digital Divide
Digital signal processing theory
Distributed Sensor Networks
Drives automation
Drug Design,
Drug Development
DSP implementation
E-Business
E-Commerce
E-Government
Electronic transceiver device for Retail Marketing Industries
Electronics Engineering,
Embeded Computer System
Emerging advances in business and its applications
Emerging signal processing areas
Enabling technologies for pervasive systems
Energy-efficient and green pervasive computing
Environmental Engineering,
Estimation and identification techniques
Evaluation techniques for middleware solutions
Event-based, publish/subscribe, and message-oriented middleware
Evolutionary computing and intelligent systems
Expert approaches
Facilities planning and management
Flexible manufacturing systems
Formal methods and tools for designing
Fuzzy algorithms
Fuzzy logics
GPS and location-based app
This paper developed an analytical background to scientific development conducted on the use of
Lean Manufacturing in the industries. Regarding the methodological approach to this research is exploratory and
did a literature review with a sample survey using technological resources search as a tool to perform the search
in this case, the component data bases Journals Portal Coordination and Training of Personnel Higher Level. For
this study bibliometric analysis and the selection of journals were made and the results show that the topic is
Lean Manufacturing on the rise internationally and that is a methodology mentioned in leading journals. The
scientific literature on the topic is not predominantly done by a single magazine or a single industry segment.
The contribution is in identifying the gaps of the segments of the industries with the greatest opportunities for
the application of Lean Thinking so that future studies can deepen effectively is opportunity.
The Extent of New Product Development Partnership between Universities and th...Dr. Amarjeet Singh
The importance of new product development in building both technological and technical capacity of university and firm cannot be overemphasized. Collaborations between HE and industry in NPD is conceived as mutual interaction for skills acquisition and economic improvement. The study was designed to determine the extent of new product development partnership between HEIs and the manufacturing firms. A survey was conducted, and a sample of 400 was drawn from both HE and industry; the data were then analyzed using structural equation modeling (SEM) software of EQS version 6.2.The results revealed that there is weak interaction between HE and industry, also there is no formal partnership between the two on new product development. in order to strengthen the mutual relationship, a conceptual model had been developed after a careful examination and assessment of the key factors of NPD and after preliminary CFA analysis conducted to establish the determinants of the main construct. A nine-factor model was then developed for university and industry. The study therefore recommends that higher education and industry adopt this new model for effective partnership on NPD.
Computer Science
Active and Programmable Networks
Active safety systems
Ad Hoc & Sensor Network
Ad hoc networks for pervasive communications
Adaptive, autonomic and context-aware computing
Advance Computing technology and their application
Advanced Computing Architectures and New Programming Models
Advanced control and measurement
Aeronautical Engineering,
Agent-based middleware
Alert applications
Automotive, marine and aero-space control and all other control applications
Autonomic and self-managing middleware
Autonomous vehicle
Biochemistry
Bioinformatics
BioTechnology(Chemistry, Mathematics, Statistics, Geology)
Broadband and intelligent networks
Broadband wireless technologies
CAD/CAM/CAT/CIM
Call admission and flow/congestion control
Capacity planning and dimensioning
Changing Access to Patient Information
Channel capacity modelling and analysis
Civil Engineering,
Cloud Computing and Applications
Collaborative applications
Communication application
Communication architectures for pervasive computing
Communication systems
Computational intelligence
Computer and microprocessor-based control
Computer Architecture and Embedded Systems
Computer Business
Computer Sciences and Applications
Computer Vision
Computer-based information systems in health care
Computing Ethics
Computing Practices & Applications
Congestion and/or Flow Control
Content Distribution
Context-awareness and middleware
Creativity in Internet management and retailing
Cross-layer design and Physical layer based issue
Cryptography
Data Base Management
Data fusion
Data Mining
Data retrieval
Data Storage Management
Decision analysis methods
Decision making
Digital Economy and Digital Divide
Digital signal processing theory
Distributed Sensor Networks
Drives automation
Drug Design,
Drug Development
DSP implementation
E-Business
E-Commerce
E-Government
Electronic transceiver device for Retail Marketing Industries
Electronics Engineering,
Embeded Computer System
Emerging advances in business and its applications
Emerging signal processing areas
Enabling technologies for pervasive systems
Energy-efficient and green pervasive computing
Environmental Engineering,
Estimation and identification techniques
Evaluation techniques for middleware solutions
Event-based, publish/subscribe, and message-oriented middleware
Evolutionary computing and intelligent systems
Expert approaches
Facilities planning and management
Flexible manufacturing systems
Formal methods and tools for designing
Fuzzy algorithms
Fuzzy logics
GPS and location-based app
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Economic analysis of lead time using value stream mapping (vsm) in company o...Jéssica M. Miloco
Artigo de conclusão de curso!
Embora o presente estudo esteja limitado a uma análise do fluxo do valor de uma empresa específica do ramo de bens de capital de Sorocaba, constatou-se que a ferramenta VSM pode ser aplicada de forma diferenciada nos diversos níveis das organizações, auxiliando inclusive na tomada de decisões estratégicas.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Economic analysis of lead time using value stream mapping (vsm) in company o...Jéssica M. Miloco
Artigo de conclusão de curso!
Embora o presente estudo esteja limitado a uma análise do fluxo do valor de uma empresa específica do ramo de bens de capital de Sorocaba, constatou-se que a ferramenta VSM pode ser aplicada de forma diferenciada nos diversos níveis das organizações, auxiliando inclusive na tomada de decisões estratégicas.
Current Trends in Product Development during COVID-19vivatechijri
This paper will summarize the authors´ experience over the last decades, from new methods developed
and used within Product Development, as well as current trends. Hence, a general and broad overview is
presented, rather than recent research results. Driving forces in PD are: Technology, Market and Society.
Ecological, economic and social sustainability require recycling, reuse, energy conservation and new business
concepts. Customization is carried out by modular architecture, combining customer specific products with
volume production of components and sub-systems. PD integrates “hard” properties (engineering), with “soft”
properties (industrial design). Fundamental PD characteristics are: Iteration, Integration (technical and
organizational), and Innovation. Globally distributed industrial partners co-operate using Internet. Iteration:
modeling/simulation, virtual prototyping and additive manufacturing speed up process loops. Structured PD:
Initial specification of “what” – functional requirements, then “how” - generation of design solutions.
Interdependencies analysis is important to simplify the product´s structure. The V-model for specification and
verification is commonly used. A 3-stage industrial process separates strategy, core technology development, and
product design for market introduction.
DEVELOPING A CONVERGENCE METHODOLOGY BETWEEN ENGINEERING TECHNOLOGY AND FASHI...ijejournal
This study proposed a convergence design process comprising the creativity of fashion design and the technology of engineering for fashion design education. It incorporated the concept of the convergence tendency in modern industry. The primary study combined an engineering design process that promoted engineering thinking and a fashion design process that promoted creative thinking to create a practice model that was developed and tested in a 10-week workshop. The result showed the need for refining the practice model to encourage in-depth cooperation. Therefore, a second practice model composed of an interaction design process and a fashion design method was investigated to promote students’ interconnected thinking and force iterative processing. To verify the usability of the refined practice model, a second workshop using the latest model was conducted over 15 weeks. A tendency for convergence, where knowledge and techniques were shared among designers and engineers to address problems, was observed. The functionality of the four prototypes that were developed based on the idea of setting and solving a design issue was also embodied. It is expected that the processes and results can be utilized as a basis for the development of design methodologies and education programs in various design areas, including fashion, in this era of converged industries.
The purpose of the study is to reflect on the methods used by the manufacturing that provide subsidy for the construction of the product and also, to
meet the need of customers. In this context, the intention, therefore, is to judge, design methodologies that help the process of creativity and innovation
to improve the fabric. The research developed through the bibliographical reference, intends to analyze and reflect on the methodologies applied to
textile and fashion design for product development.
The purpose of the study is to reflect on the methods used by the manufacturing that provide subsidy for the construction of the product and also, to
meet the need of customers. In this context, the intention, therefore, is to judge, design methodologies that help the process of creativity and innovation
to improve the fabric. The research developed through the bibliographical reference, intends to analyze and reflect on the methodologies applied to
textile and fashion design for product development.
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A Method of R&D Electronic Product for Application by Independent Engineers, Designers and Inventors
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Brazilian Journal of Operations & Production Management
Volume 7, Number 2, 2010, pp. 153-173
A Method of R&D Electronic Product for Application by
Independent Engineers, Designers and Inventors
Carlos Fernando Junga
Carla Schwengber ten Catena
José Luis Duarte Ribeiroa
Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
a
Abstract
This paper describes a method for research and development (R&D) of
electronic product for use by independent engineers, designers and inventor. The
method was under continuous development and optimization from 1980 to 2008
and the concept is based on the analysis and synthesis of 13 product development
methodological models. The method was originally proposed to suit the needs of
a small company engaged in research, development and production of industrial
electronic audio processing products for Radio Broadcasting Stations. The method
was optimized with the assistance of Researchers from the Center of Technological
Innovation of the Vale do Paranhana – one of a series of such Centers established by
the Program of Technological Innovation promoted by the Government of the State of
Rio Grande do Sul in Brazil. As a result, a method was obtained particularly suitable
for utilization by independent engineers, designers and inventors to facilitate the
creative process and increase efficiency in the design of new products, and especially
to ensure that the incorporation of these elements results in more innovative and
competitive products.
Keywords: Product Design, Product Development, Innovation, R&D
Introduction
Is necessary that professionals working on product designs select an
adequate methodological model for research and development - R&D of new
products bearing in mind the type of application and the size of the manufacturing
facility (Zirger and Hartley, 1996; Rosenau, 1999; Bonner, Ruekert and Walker, 2002;
Tennant and Roberts, 2003). However, the the standard approaches for product design
are often complex, and call for different methods in accordance with the individual
views of the authors and market application involved (Pahl et al., 2005; Back et al.
2008).
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Volume 7, Number 2, 2010, pp. 153-173
When independent engineers, designers and inventors try to use the
existing methods for R&D developing new products they often run into application
difficulties (Bonner, Ruekert and Walker, 2002). These involve the requirements of the
methodological structures, especially with regard to the investment in human, financial
and technological resources needed for utilization of that particular methodology
(Andreasen and Hein, 1987). Adapting an existing method for R&D product design
to a specific situation calls for expertise, time and money, all of which may be hard
to come by independent professionals (OECD, 2008). The manner in which people
are conditioned to think by the current teaching processes, by the cultural context, and
by the reference models determines the practical day-to-day actions on the individual
plane (Jordan, 1974). Thus, when the use of an existing traditional method of product
design is out of the question for a variety of reasons, people tend to invent empirically
their own methods. Usually these are constructed by trial and error and might conduct
to over time, increased costs, reduction of profits, and loss of competitivity (OECD,
2008).
Frustration at the lack of means to use external methodological models may
also negatively affect creativity (Collins and Amabile, 1999) and block generation
of new ideas (Feldhusen and Goh, 1995). This happens because creative production
cannot be attributed only to the individual’s possession of a certain skills or personality
characteristics, but may also be subject to the influence of the environment in which
the designer lives or works (Henessey and Amabile, 1988). The use of methods for
product design that are adapted to the peculiarities of a specific manufacturer may
represent a competitive advantage in the short term and allowing that manufacturer
to progressively implement other methodological phases as the company and its
personnel mature in design management (French, 1999). The existence of methods
that are adequate for the realities of operation of independent professionals, and
are designed for specific technological applications, would facilitate the creative
processes, increase the efficiency of design of new products, and most importantly,
ensure that the introduction of these elements results in more innovative, economical
and competitive products (David, Hall and Toole, 2000).
This paper describes a R&D method of electronic product for use
by independent engineers, designers and inventors. In this work these types of
professionals is considered not act in companies. This method has been undergoing
continuous development, utilization, evaluation, and optimization since 1980. The
structure of the method was based on a study of principles and methodological stages
proposed by Asimow (1962), Pahl and Beitz (1977), Bonsiepe (1978), Back (1983),
R&D model by Kline and Rosenberg (1986), Park and Zaltman (1987), Suh (1988),
Wheelwright and Clarck (1992), Dickson (1997), Prasad (1997), Kaminski (2000),
Ulrich and Eppinger (2000), Pahl et al. (2005) and Rozenfeld et al. (2006).
Conception of the Method
The method was developed and enhanced during a 28 year period extending
from 1980 to 2008 and was based on the analysis and synthesis of 13 product design
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Brazilian Journal of Operations & Production Management
Volume 7, Number 2, 2010, pp. 153-173
methodological models during that period. The 28 years may be divided into four
phases each of which had considerable influence on the continuous optimization of the
method. This was originally proposed to suit the needs of a small company engaged
in research, development and production of industrial electronic audio processing
products for Radio Broadcasting Stations.
The first phase, 1980 to 1985, involved the basic delineation of the method
to meet initial necessities of the pilot company, viz, (i) only a small team of 2 product
engineers was available for research and development; (ii) this same engineers would
have to do the design, construction, evaluation and optimization of the prototype in
order to specify the productive processes; (iii) also to analyze similar products already
on the market and create new and different products; (iv) the product design process
had to be simplified. In this phase, four product design models were studied and their
methodological phases classified and analyzed for consideration during the initial
construction of the method by: Asimow (1962), Pahl and Beitz (1977), Bonsiepe
(1978) and Back (1983).
During this first stage, the structure of the method was strongly influenced
by the models proposed by Asimow (1962), Pahl and Beitz (1977) and Back (1983)
who emphasize engineering in product design. Another important contribution came
from Bonsiepe (1978) - the inclusion of the analysis of similar products in an early
stage of the method. We performed four different analyses: (1) synchronous; (ii)
functional; (iii) structural and (iv) morphological. In this stage we concentrated on
developing new products by identifying weak points and deficiencies of competing
products and with a simplified structure based on three phases: (i) identification and
analyses of requirements; (ii) Detailed design; and (iii) Construction and testing a
prototype.
At the second step, from 1985 to 2000, we introduced the concept design
phase, divided it into two other parts: the Electronic Design Concept and the Mechanical
Design Concept. The models studied in this second phase that served as the basis for
optimization of the method were: Kline and Rosenberg (1986), Park and Zaltman
(1987), Suh (1988), Wheelwright and Clarck (1992) and Prasad (1997). In the second
phase, the model proposed by Suh (1988) indicates that a structure of functions needs
to be used, especially during the “Conceptual Electronic Design” process. Among the
models we studied at this stage we find that Asimow (1962), Wheelwright and Clarck
(1992), Park and Zaltman (1987), Prasad (1997) make this point also. Suh further
contributes to the optimization of the method when he states that in the initial stages
of any method a social requirement should exist and be identified. For this reason, we
saw the necessity of including instruments capable of identifying new requirements
by means of more intense interaction with the prospective consumers. In this phase,
the method was expanded to include certain functions - such as feedback between the
stages – which gave the method greater circularity (non-linearity) by contribution of
the R&D method of Kline and Rosenberg (1986).
In the third phase, 2000 to 2006, the method was studied and improved by
researchers from the Center of Technological Innovation of the Vale do Paranhana.
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Brazilian Journal of Operations & Production Management
Volume 7, Number 2, 2010, pp. 153-173
This is one of a series of such Centers established by the Program of Technological
Innovation promoted by the Government of the State of Rio Grande do Sul in Brazil.
These Centers are promoters of innovation and are found in most regions of the State
of Rio Grande do Sul, Brazil. The Program was created by partnerships between
a number of public and private Institutes of the State of Rio Grande do Sul and
integrates human, financial and technological resources into a statewide system for
the development of science, technology and innovation. Implemented by the Office
of the Secretary of State for Science and Technology of Rio Grande do Sul, in 1989
the Program for the establishment of Centers of Technological Innovation is today the
largest R&D network in the State (Jung, Caten and Ribeiro, 2007).
Another important contribution to the structure of the method was the
inclusion of the “Control and Operation Areas Definition” stage after the “Mechanical
Structure Definition” stage. This new stage added Ergonomic principals to the
“Conceptual Design”. In this third phase, we studied the methodological structures of
the models by: Kaminski (2000), Ulrich and Eppinger (2000) and Pahl et al. (2005).
In the third phase the standards and precepts of Visual Ergonomics were used
in the Conceptual Design stage by the introduction of the “Convergence and Generate
Alternatives Process”, stage - which had previously been cited by Kaminski (2000),
Ulrich and Eppinger (2000) and Pahl et al. (2005) - with the objective of combining
sub-solutions into alternatives, generating alternatives, evaluating alternatives and
selecting a solution (conceptual design). Another important optimization of the
method was the addition of two steps after the Detailed Design stage, viz; Integrated
System Design Analyses, and Electro-Mechanical Design Interconnection.
In the fourth stage, 2006 to 2008, the optimization of the proposed method
was incorporated into studies being developed by one of the authors in the Ph.D
Program in Industrial Engineering of the Federal University of Rio Grande do Sul,
Brazil. The studies carried out up to 2008 resulted in considerable improvements to
the method. Furthermore, a study was made of the model proposed by Rozenfeld et al.
(2006) which demonstrates the need for the method to be adaptable to the peculiarities
of the companies or users. In this case, this methodological model (Rozenfeld et al.,
2006) demonstrated the need to include in the method the “Users and Market” step
in order to obtain information from users and market by testing the prototype in
real circumstances. The Rozenfeld et al. (2006) also motivated insertion of a “New
Information from the Market” stage directly connected to the “Convergence and
Generate Alternatives Process” stage.
We also studied various sustainability models, such as: (i) Cleaner
Production, (ii) Clean Production, (iii) Cleaner Technologies, (iv) Eco-Efficiency,
(v) Ecodesign, (vi) Design for Sustainability - DfS, (vii) Design for Environment -
DfE, (viii) Pollution Prevention – P2, (ix) Life Cycle Assessment, - LCA (x) Green
Engineering, (xi) Cradle to Cradle Design, and (xii) ZERI – Zero Emissions Research
Initiative. This study resulted in the inclusion of a sub-stage entitled “Analyses the
Use of Sustainable Materials” that proposes options for sustainable methods and
materials for the “Convergence / Generate Alternatives Process” phase.
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The process of analyses of the sustainable models for inclusion in the
“Analyses the Use of Sustainable Materials” stage was based on principles and
concepts derived from Anastas and Warner (1998), Allenby (1999), Billatos and
Basaly (1997), Boothroyd, Dewhurst and Knigth (1994), EPA (2001), Keffer, Shimp
and Lehni (1999), Van Berkel (2000), McDonough and Braungart (2002) and Pauli
(1998).
An important contribution for optimization of the method developed in the
Ph.D program of the Federal University of Rio Grande do Sul was the inclusion of the
initial step entitled “Discovery of Requirement Through Interaction With User”. This
stage proposes the utilization of qualitative methods to research user requirements
as is also referred to by Shiba, Graham and Walden (1993) as an efficient way to
understand user demands when designing a new product.
Description of the Method
In this section we describe the proposed R&D method, Figure 1, by
synthesizing the methodological steps of its structure. To make the description easier
to understand, one of the products developed with the method – a Broadcast Radio
audio console – is used as an example.
Discovery of a Requirement by Interaction with Users
The first stage of the method states that a designer who is considering
production of a new product have to interact with a reasonable number of users of
similar products to generate new ideas and to determine the problems and deficiencies
of the products they now use. This interaction can generate new ideas for resources or
operational facilities that could provide a competitive advantage for the new product.
Pahl et al. (2005) states that the discovery of the requirement for a product
can occur in situations where a group or a collectivity expresses lack of satisfaction
with a particular existing product. There are many forms of this interaction that can be
classified in the Interaction Level and Environment of Use dimension (Shiba, Graham
and Walden, 1993). See Figure 2.
Therefore, the method provides two alternatives for identifying
requirements: generate original ideas from: (i) visits to customers with users; (ii)
contextual inquiry, (iii) gathering evidence on user behavior, and (iv) ethnography, in
addition to the use of techniques for analyzing similar products; or conduct different
types of analyses, for instance: (i) synchronous, (ii) functional, (iii) structural, and (iv)
morphological.
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Figure 1 - Diagrammatic model of the R&D method for product design
Figure 2 - Interactions with consumers by Shiba, Graham and Walden (1993)
Original Ideas
A great number of new ideas may surface when new information, obtained
by observation or experience, obliges reconsideration of older ideas (Bono, 2002).
For this to be possible, it is necessary to clearly define the objective(s) to be attained
keeping close watch on any external factors that might influence the results.
It is important to assure that one knows what the problem really is and
what external influences may worsen or resolve it. It is essential to have a clear
definition of the problem. Once the problem is understood, creative techniques for
idea generation can be used to propose possible solutions. Later, one should analyze
proposed solutions and decide if them can meet the necessities of the users. The
positive and negative aspects of the idea should then be analyzed and a subjective
evaluation should be made concerning quality and advantages of the chosen approach.
Before implementing any solution, it is a good practice to check the reality to verify
that the solution is feasible (Birch and Clegg, 1995).
Synchronous Analysis
The object of this analysis is to determine the position of similar products
found in the marketplace (Bonsiepe, 1978). Knowing the prices of similar equipments
it is possible to estimate the investment that the user must make for his professional
activities. The value of the investment reveals the market position of similar product
and can establish a parameter that will serve as a reference to evaluate the cost of the
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new product to be developed and consequently, the economic viability (Crawford,
1983). In Figure 3 is presented a suggestion method for synchronous analysis. This
method is simplified and can be applied by only one person in potential users.
SYNCHRONOUS ANALYSIS
PRODUCT: BROADCAST AUDIO CONSOLE
Values are assigned on a scale from 1 to 3 (importance for the user)
(1 = low importance; 2 = mid importance; 3 = important)
*The product not meets the
Items considered
demand = 0
Importance Product Product Product
Level One Level Two for the user 1 2 3
(value) (value) (value)
Designed within
ergonomics 3 3 3 3
specifications
Have up to eight
2 2 0 0
Basic channels of operation
Have boards
Operational
printed circuit 3 3 3 0
Resources
(PCI) plug-in
Hold level meter
3 3 0 0
digital output
Easy installation
2 0 2 2
requires
Manufactured
Basic with recyclable 3 0 0 3
Structure materials
Specifications Have shielding to
3 3 3 0
prevent EMI
Comes in metallic
Design / 1 1 1 0
colors
Complement Provided in basic
3 3 3 3
colors
Term - 30 days 1 1 1 1
Conditions of Term - 30/60 days 2 2 0 2
Sale Term - 30/60/90
3 3 0 3
days
Three months 1 0 0 0
Six months 1 0 0 0
One year 2 2 2 2
Warranty
Two years 3 3 3 3
Conditions
Option to extend
with additional 3 0 0 3
cost
Delivery Free at point of use 3 0 3 3
Terms To the factory 1 1 1 1
Above U$ 10.000 1 1 0 0
Average Between U$ 8.000
Market Value 2 0 2 0
and U$ 10.000
Below U$ 8.000 3 0 0 3
Results (value for the user) 49
31 27 32
Results (value of products)
Figure 3 - A suggestion method for Synchronous Analysis
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Functional Analysis
The functional analysis reveals the technical/physical characteristics of the
systems and sub-systems of competing products and the aspects and relationships of
the functions. The starting point for the study is the determination of the key systems
utilized in these products.
In this respect, one can discover whether the products possesses distinct
systems and if the functions are divergent or convergent. In synthesis, the functional
analysis is made to find out how the product operates and why that particular system
was developed in that specific way with the resources available, see Figure 4 an
example.
Figure 4 – Block diagram for use in Functional Analysis (NATIONAL, 2009)
Structural Analysis
Consists of a systematic check of the details of the competing product’s
construction to detect negative or critical points that might be useful in the new design
of the mechanical structure, the system of electro-mechanical interconnections,
painting, finish, resistance to external impact, portability and protection against
external physical/chemical agents. Knowledge of these aspects of competing products
can help to avoid repetition of problematic details in the new product. In this analysis,
one should also check to see if the structures of the competing products were designed
following the principles of Design for Environment (DfE), Design for Assembly -
DfA and Design for Disassembly - DfD (Guimarães, 2006), see Figure 5.
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Figure 5 – Detail of the demonstration of Structural Analysis (NJOYFM, 2009)
Morphological Analysis
The objective of this analysis is to understand the formal structure (or
concept) of the similar products, and their make-up, starting from their geometrical
figures and proceeding to a full understanding of the formal coherence (if any) of
the mechanical structure and of the elements for front-panel control and operation.
Formal coherence is based on the use of equal or similar elements, geometrically
describable, both in the case of the intrafigural (internal) coherence of a product and
in the interfigural (external) coherence of a group of products – each one of these
elements constitutes a system.
The relevance of the analysis of the systemic relationships between equal
or similar elements involves the Theory of Symmetry. For an understanding of the
principles of the Theory of Symmetry, Thompson (1969) states that symmetry is a
correspondence of position, of form, of measurement in relation to a point, a straight
line or a plane between two elements of an assembly. In this case, the analysis should
take into consideration the conception of the front panel, the symmetrical arrangements
of the disposed components and the relationship between them (interfigural or
intrafigural) so as to understand its importance in the design of the new product, see
Figure 6.
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Figure 6 – Example of simmetrical interfigural relationship possible by Morphological Analysis
Conceptual Design
This may be defined as the initial and most abstract stage in the design
process and starts with the required functions (what the design is to do without saying
how the design is to do it) and should result in the formation of concepts (preliminary
system configurations) (Welch and Dixon, 1992). The method proposes an initial
division in the formation of product concept - a Conceptual Mechanical Design
(2.1) and a Conceptual Electronic Design (2.2). However, during these sub-stages
it is important to keep in mind the system as a whole (electronic and mechanical)
- that is, details of the mechanical construction should be determined considering
the respective electronic systems and their associated external electromechanical
controls, and vice-versa. The interaction of the systems is the basic principle that
determines the differences between purely mechanical and purely electronic projects.
Conceptual Mechanical Design
The mechanical structure packages the electronic circuits and provides
adequate means for control and human interface information necessary to operate
the equipment. From these requirements, one can visualize, analyze and create the
concept of the mechanical structure and consider the respective ergonomic aspects,
see Figure 7.
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Figure 7 – Example of the concept mechanical structure
Following this, the outline of the final mechanical structure can be drafted
in the Mechanical Structure Definition (2.1.1) stage and, in turn, the most functional
layout for the operational controls and visual displays determined at the Control and
Operation Areas Definition (2.1.1.1) phase, see Figure 8.
Figure 8 – Conceptual layout of operational controls and visual displays
Conceptual Electronic Design
At this stage, the functions of the new product should be first defined. The
Electronic Functions Definition (2.2.1) sub-stage requires that the designer utilize the
information obtained in the Synchronous, Functional, Structural and Morphological
Analyses of Others Products (1.1) sub-stage. With this information, the designer may
add other differential functions to the project. To facilitate the specification of the
details it is recommended that a structure of functions be utilized. Proceeding then to
the Electronic Circuits Definition (2.2.2) stage, where the electronic circuits necessary
for the required functions are determined, see Figure 9.
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Figure 9 – Example of an conceptual electronic circuit for the functions of the product
Convergence and Generation of Alternatives
For the Convergence and Generation of Alternatives stage, all the
information and designs already defined at the Conceptual Mechanical Design (2.1)
and Conceptual Electronic Design (2.2) are consolidated. At this point, an advanced
concept of the new product exists. The idea of convergence rests on the fact that now
the mechanical and electronic systems can be analyzed as one so that the concept as a
whole can be used to consider the alternatives.
At this stage, we also consider the possibility of using sustainable materials
and alterative power supply sources, Figure 10, (Analyses of the Use of Sustainable
Materials sub-stage) as well as introducing new technological and economic
information obtained in the market (New Information From the Market sub-stage).
Figure 10 - Use of recyclable materials in product conceptual design
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Detailed Design
The detailed specification of the mechanical and electronic systems is
drawn up at this stage. In principle, product design may be divided into two main
elements - the Mechanical Structure (4.1) and the Electronic Circuits (4.2). The first
concerns detailed design of the external container (as seen by clients), which contains
and arranges electronic circuits, mechanisms for control and operation, internal
interconnection cable forms, and other sub-systems.
The second involves the design of the electronic circuits that correspond
to the functions determined at the Electronics Circuits Definition (2.2.2) sub-stage.
Here software tools as CAD (Computer Aided Design) programs should be used. For
example, Figure 11, in the development of the audio console for Radio Broadcasting
the circuits to be designed are: pre-amplifiers, line amplifiers, phone amplifiers, etc.
Figure 11 – Stages of development an electronic circuit using Computer Aided Design (CAD)
Integrated System Design Analysis
When details of the design of the mechanical structure and electronic
circuits have been completed, the form and process for the integration of these
two sub-systems should be analyzed more thoroughly. At the Integrated System
Design Analysis (5) stage, one should verify that printed circuit boards (PCB´s)
insert perfectly into respective connectors and are not obstructed by any part of the
neighboring mechanical structure, see Figure 12.
Figure 12 – Example of detail for Integrated System Design Analysis (electronic and mechanical)
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Where necessary, suitable adjustments should be made both in the projected
electronic circuit boards and in the mechanical structure. For this reasons, the flow
chart (Figure 1) should be used, since it provides feedback between the Mechanical
Structure (4.1) and Electronic Circuits (4.2) sub-stages.
Interconnection Electro-mechanical Design
This stage is executed in parallel with the previous one. The designer
should proceed to detail in the CAD software the installation and interconnection of
external components to printed circuit boards (PCB´s), for example: keys, variable
attenuators for signal control, Leds, Connectors.
Also at this time, the design of the connections of internal cable-forms
between PCB´s and mechanical components and/or support structure should
be completed. Figure 13 presents an internal view of an audio console for Radio
Broadcasting, showing the disposition of the electronic circuits over the mechanical
structure and the internal cable forms that interconnect the systems.
Figure 13 - Internal view of an audio console and the respective interconnection system
Construction of the Prototype
The construction of prototype is conducted by the assembly and integration
of all systems involved – electronic, mechanical and electrical. This is essentially
practical work and is carried out in three stages; (i) construction and assembly of
PCB´s; (2) construction of front panel and adaptation of mechanical structure, and (iii)
final assembly and electro-mechanical interconnection of the components. Figure 14
illustrates a prototype of an audio console for FM Radio Broadcasting, model JMR-
8CSD, constructed by the application of the R&D method proposed and described in
this paper.
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Figure 14 - Prototype of Model JMR-8CSD, designed by the R&D method described in this paper
Evaluation and Testing
With so many possibilities for mistakes or failure it is difficult to achieve
results exactly as planned at the first time around (Back et al., 2008). Thus, it
is vital to verify the operation of prototypes and processes (Pahl et al., 2005 and
Back, 1983). A careful revision of a project can offer a series of advantages, such as:
(i) a demonstration of how well the design meets user’s requirements; (ii) provide
information on costs and potential profit; and (iii) supply data on product performance
and reliability (Bonner, Ruekert, and Walker Jr., 2002).
The test for usability is a formal process that involves the interaction of
the user with the product. The results of this test can be used for product optimization
or even as a marketing strategy. Feedbacks received from users may help to improve
the product, with a reduction of manufacturing costs and sale prices. Therefore, the
method proposes that new products should be tested in real operational environment
and operated by professionals in order to obtain market and user information about
the product directly from those best equipped to judge. Also, detailed analyses in
laboratory are important to verify technical characteristics and parameters. These tests
generate feedback and may suggest modifications and improvement in the Mechanical
Structure (4.1) or in the Interconnection Electro-Mecanical Design (6).
When this stage is complete, documentation and specifications are
generated for production or for patent negotiations with companies interested in
commercializing the new product.
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Synthesis
The results show that the proposed method has the following main
characteristics, see Figure 15.
(i) the method starts by applying a technique of qualitative research
(is based on discovery of a requirement by interaction whit users);
(ii) is proposed four analysis on similar products;
(iii) both the conceptual design and the detailed design are divided
Methodological into two stages. Subsequent proposal is a convergence of results;
(iv) in the stage of Convergence and Generate Alternative Process is
proposed an analysis of used sustainable alternative materials;
(v) the method specifies both the mechanical and electronic
transactions in their stages and sub-stages.
(i) the method can be used by only a mechanical engineer and
an electrician, or an engineer, designer or inventor who has both
expertises;
Human / (ii) the method is applied to engineers, designers and independent
inventors do not need a team or industrial infrastructure to obtain
Operational
the prototype;
(iii) the method nurture the research and experimental development
of a new product in the form of prototype, to offer an innovation for
manufacturing firms or the registration of a patent by the engineer,
designer or inventor.
Figure 15 – Main characteristics of the R&D method
Conclusions
This paper described a R&D method for electronic product suited for use
by independent engineers, designers and inventors. The method was under continuous
development and optimization for 28 years.
The concept of the method was based on an analysis and syntheses of 13
product development models during the period from 1980 to 2008.
The proposed method is made up of 8 stages and 22 sub-stages and uses
a non-linear configuration with feedback between the stages and sub-stages so as to
optimize product concept and detailed design. The method can be used by only a
mechanical engineer and an electrician, or an engineer, designer or inventor who has
both expertises.
The method starts by applying a technique of qualitative research (is
based on discovery of a requirement by interaction whit users). Is proposed four
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analysis on similar products. Both the conceptual design and the detailed design
are divided into two stages. Subsequent proposal is a convergence of results. In the
stage of Convergence and Generate Alternative Process is proposed an analysis of
used sustainable alternative materials. The method specifies both the mechanical and
electronic transactions in their stages and sub-stages.
As a result, a method was obtained that is particularly suitable for utilization
by independent engineers, designers and inventors to facilitate the creative process
and increase efficiency in the R&D design of new products, and especially to ensure
that the incorporation of these elements results in more innovative and competitive
products. In essence, this method is intended for product design up to the prototype
stage and is not for application in the subsequent processes of production and follow-
up of the product in the market.
We feel that it is necessary to continue this research, to further improve
this method as new technological and economic information become available and to
constantly improve the process of interaction with the user.
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Biography
Carlos Fernando Jung is Ph.D. in Production Engineering (Quality
Systems) at Federal University of Rio Grande do Sul - UFRGS, Brazil, and Master
in Production Engineering (Product Design) in Federal University of Santa Maria -
UFSM. Worked from 1980 to 2000 in research and development (R&D) and industrial
production of electronic equipment. Professor and Researcher since 2000 in FACCAT,
Brazil, and Manager of Center of Technological Innovation of the Vale do Paranhana
by the Program of Technological Innovation promoted by the Government of the State
of Rio Grande do Sul in Brazil.
Contact: carlosfernandojung@gmail.com
Carla Schwengber ten Caten is Ph.D. in Mines, Metallurgical and Materials
Engineering, and Master in Production Engineering (Quality Systems) at Federal
University of Rio Grande do Sul - UFRGS, Brazil. Professor, Researcher and
Coordinator of PPGEP/UFRGS and Reviewer of Engineering III of CAPES/MEC,
Brazil.
Contact: tencaten@producao.ufrgs.br
José Luis Duarte Ribeiro is Ph.D. and Master in Civil Engineering at
Federal University of Rio Grande do Sul – UFRGS, Brazil. Professor, Researcher and
Coordinator of Department of Production and Transport at Federal University of Rio
Grande do Sul – DEPROT/UFRGS.
Contact: ribeiro@producao.ufrgs.br
Article Info:
Received: August, 2009
Accepted: September, 2010