Development Cycle (development + cycle)

Distribution by Scientific Domains


Selected Abstracts


Testing Students with Special Needs: A Model for Understanding the Interaction Between Assessment and Student Characteristics in a Universally Designed Environment

EDUCATIONAL MEASUREMENT: ISSUES AND PRACTICE, Issue 3 2008
Leanne R. Ketterlin-Geller
This article presents a model of assessment development integrating student characteristics with the conceptualization, design, and implementation of standardized achievement tests. The model extends the assessment triangle proposed by the National Research Council (Pellegrino, Chudowsky, & Glaser, 2001) to consider the needs of students with disabilities and English learners on two dimensions: cognitive interaction and observation interaction. Specific steps in the test development cycle for including students with special needs are proposed following the guidelines provided byDowning (2006). Because this model of test development considers the range of student needs before test development commences, student characteristics are supported by applying the principles of universal design and appropriately aligning accommodations to address student needs. Specific guidelines for test development are presented. [source]


Barriers to implementing e-learning: a Kuwaiti case study

INTERNATIONAL JOURNAL OF TRAINING AND DEVELOPMENT, Issue 1 2008
Ghadah Essa Ali
The paper reports on a research project that encompasses two key objectives: (1) finding out about the barriers affecting or preventing e-learning from being adopted by companies as an integral part of their workforce's training and learning processes and (2) establishing a comparison between the barriers and the e-learning implementation models found in Kuwait and in the practice of Western companies. The practices from Western countries are used as a benchmark for the Kuwaiti experience. The collection of the primary data was carried out through the use of semi-structured questionnaires with human resources managers as well as IT managers in charge of the e-learning of 11 of the largest companies in Kuwait. The research results show that the key implementation barriers in Kuwait are (1) lack of management support; (2) language barriers; (3) IT problems; and (4) workload and lack of time. From these, two are common to Western countries (technology and time). The remaining two (management support and language barriers) are specific to Kuwait. Regarding the comparison between the two implementation models, the key finding was that the usual e-learning development cycle (plan,design,integrate,improve) was not followed in Kuwait. The planning, designing and improving stages were largely ignored, with the emphasis resting almost completely on integrating the e-learning tools and processes in the rest of the organization. This finding was found to be in line with barrier number one , lack of management support. The key lesson learned from this research is that the problem of e-learning implementation in Kuwait is not so much one of knowing what the barriers are but one of knowing what the appropriate management processes should be for companies to achieve business success. The paper also provides recommendations for an e-learning development plan to fit the current business environment in Kuwait. [source]


The global recession of 2009 in a long-term development perspective

JOURNAL OF INTERNATIONAL DEVELOPMENT, Issue 6 2010
Charles Gore
Abstract This paper argues that the global recession of 2009 marks the ending of a global development cycle which began in the early 1950s. The long-wave rhythm of production and prices in the global development cycle is generated by the life cycle of investment and innovation during a technological revolution, related changes in supply and demand for natural resources, and inertia and transformation in the socio-institutional framework within which development takes place. From this perspective, the global recession is interpreted as a blocked structural transition. Whilst failings in the financial system triggered the global financial crisis, that crisis and the recession are more deeply rooted in contradictions in the global development trajectory. A paradigm shift in development theory and practice is a crucial element of the socio-institutional transformation now necessary to re-boot the global development cycle. Copyright © 2010 John Wiley & Sons, Ltd. [source]


MECHANICAL,ACOUSTIC AND SENSORY EVALUATIONS OF CORNSTARCH,WHEY PROTEIN ISOLATE EXTRUDATES

JOURNAL OF TEXTURE STUDIES, Issue 4 2007
E.M. CHENG
ABSTRACT The mechanism relating sensory perception of brittle food foams to their mechanical and acoustic properties during crushing was investigated. Cornstarch was extruded with four levels of whey protein isolate (0, 6, 12 and 18%) and two levels of in-barrel moisture (23 and 27%). Hardness, fracturability and roughness of mass were three main sensory attributes that varied substantially between products. High correlations (r = 0.841,0.998) were observed between sensory attributes and instrumentally determined mechanical properties, including crushing force (11.2,57.9 N) and crispness work (4.6,75.8 N·mm). Based on acoustic data obtained during instrumental crushing, time-domain signal processing and a novel voice recognition technique utilizing frequency spectrograms were successfully employed for understanding the differences in the sensory properties of various products. Microstructure features, including average cell diameter (1.00,2.94 mm), average wall thickness (0.04,0.27 mm) and cell number density (7,193 cell/cm3), were characterized noninvasively using X-ray microtomography, and proved to be critical in relating sensory perception of the cellular extrudates to their mechanical,acoustic signatures. PRACTICAL APPLICATIONS The sensory perception of crispy and crunchy food products is primarily a function of their mechanical response and emission of sounds during fracture. The current study was focused on understanding these relationships in the context of brittle extruded foods. The mechanical,acoustic techniques outlined in this study have the potential of reducing the time, costs and subjectivity involved in evaluation of new foods by human panels, and can be a useful tool in the overall product development cycle. These techniques need not be limited only to food systems, as properties of any rigid, fracturable material can be characterized based on its mechanical,acoustic signature. [source]


Dynamics in Central European near-natural Abies-Fagus forests: Does the mosaic-cycle approach provide an appropriate model?

JOURNAL OF VEGETATION SCIENCE, Issue 2 2008
Rafat Podlaski
Abstract Question: The mosaic-cycle concept of forest dynamics dominates in Central Europe. According to this concept intermediate-scale disturbances only accelerate the forest break-up under existing cycles of forest development. Is such an approach correct, or should new developmental cycles be elaborated for intermediate-scale disturbances? Location: Near-natural Abies alba - Fagus sylvatica forests in the ,wiétokrzyski National Park in Central Poland. In these forests intermediate-scale disturbances occurred between 1970 and 1990. Methods: Data were collected twice in areas surrounding 212 permanent sample points (in 1994 and 2004). Two increment cores were taken from 259 sample Abies trees. The effect of intermediate-scale disturbances on radial increment of Abies was assessed. Probabilities of stand transition during a 10-year period between individual stages and phases of development of the mixed forest were calculated. The development stages and phases were arranged into hypothetical succession series of successive changes. Results: In 1994 70 stands and in 2004, 47 stands representing stages and phases containing the older generation formed by trees > 100,150 years were found. Also, in 1994 142 and in 2004, 165 stands representing stages and phases containing the younger generations only, formed by trees < 100-150 years, were recorded. Stages and phases containing only younger generations do not occur in the existing forest development cycle which does not consider the influence of intermediate-scale disturbances separately. Two developmental cycles, which take into account the presence of the older generation and the younger generations only (under conditions of the occurrence of intermediate-scale disturbances), are proposed. Conclusion: The mosaic-cycle concept of forest dynamics can be used to analyse the dynamics of Central European near-natural mixed-species forests, but new developmental cycles should be elaborated for intermediate-scale disturbances. [source]


Total System Reliability: Integrated Model for Growth and Test Termination

QUALITY AND RELIABILITY ENGINEERING INTERNATIONAL, Issue 4 2005
John Donovan
Abstract Reliability demonstration testing is not the most efficient method of assuring product reliability prior to shipment. It is costly, time consuming and has inherent technical and social limitations. The dilemma facing the reliability and quality engineer is whether to continue demonstration testing and risk shipping a product late or ship the product and risk warranty and field service returns. Either option can cause the company to lose significant market share and profit. This paper sets out to solve this dilemma by meeting both the time to market constraints and the product reliability goals. The weaknesses of existing reliability demonstration techniques are explored and a comprehensive methodology is introduced involving controlled development processes, stress testing, root cause determination and process change feedback mechanisms. All prototype products are manufactured on the final volume process line resulting in the early identification and correction of process-related problems. Testing commences on the first available prototypes with system stress/robust testing being employed to stimulate failures, determine their root cause and correct them. Reliability growth modelling assesses the ongoing improvements occurring in reliability during the development cycle, while a statistical stopping rule is used to determine the optimal product release time without risking product warranty. The approach is applicable to systems incorporating both hardware and software elements. The methodology has been validated on three development projects of telecommunication systems comprising hardware and software. In addition to enhancing team behaviour and performance, the development times have been reduced by 14% and the ramp-up time to full worldwide product shipments has been reduced by 50%. Copyright © 2005 John Wiley & Sons, Ltd. [source]


"I'll never play professional football" and other fallacies of self-assessment

THE JOURNAL OF CONTINUING EDUCATION IN THE HEALTH PROFESSIONS, Issue 1 2008
Kevin W. Eva PhD
Abstract It is generally well accepted in health professional education that self-assessment is a key step in the continuing professional development cycle. While there has been increasing discussion in the community pertaining to whether or not professionals can indeed self-assess accurately, much of this discussion has been clouded by the fact that the term self-assessment has been used in an unfortunate and confusing variety of ways. In this article we will draw distinctions between self-assessment (an ability), self-directed assessment seeking and reflection (pedagogical strategies), and self-monitoring (immediate contextually relevant responses to environmental stimuli) in an attempt to clarify the rhetoric pertaining to each activity and provide some guidance regarding the implications that can be drawn from making these distinctions. We will further explore a source of persistence in the community's efforts to improve self-assessment despite clear findings from a large body of research that we as humans do not (and, in fact, perhaps cannot) self-assess well by describing what we call a "they not we" phenomenon. Finally, we will use this phenomenon and the distinctions previously described to advocate for a variety of research projects aimed at shedding further light on the complicated relationship between self-assessment and other forms of self-regulating professional development activities. [source]


Which Tangible and Intangible Assets Matter for Innovation Speed in Start-Ups?,

THE JOURNAL OF PRODUCT INNOVATION MANAGEMENT, Issue 4 2007
Ans Heirman
The launch of the first product is an important event for start-ups, because it takes the new venture closer to growth, profitability, and financial independence. The new product development (NPD) literature mainly focuses its attention on NPD processes in large firms. In this article insights on the antecedents on innovation speed in large firms are combined with resource-based theory and insights from the entrepreneurship literature to develop hypotheses concerning the antecedents of innovation speed in start-ups. In particular, tangible assets such as starting capital and the stage of product development at founding and intangible assets such as team tenure, experience of founders, and collaborations with third parties are considered as important antecedents for innovation speed in start-ups. A unique data set on research-based start-ups (RBSUs) was collected, and event-history analyses were used to test the hypotheses. The rich qualitative data on the individual companies are used to explain the statistical findings. This article shows that RBSUs differ significantly in their starting conditions. The impact of starting conditions on innovation speed differs between software and other companies. Although intuition suggests that start-ups that are further in the product development cycle at founding launch their first product faster, our data indicate that software firms starting with a beta version experience slower product launch. The amount of initial financing has no significant effect on innovation speed. Next, it is shown that team tenure and experience of founders leads to faster product launch. Contrary to expectations, alliances with other firms do not significantly affect innovation speed, and collaborations with universities are associated with longer development times. [source]


A Model of Supplier Integration into New Product Development*

THE JOURNAL OF PRODUCT INNOVATION MANAGEMENT, Issue 4 2003
Kenneth J. Petersen
In many industries, firms are looking for ways to cut concept-to-customer development time, to improve quality, and to reduce the cost of new products. One approach shown to be successful in Japanese organizations involves the integration of material suppliers early in the new product development cycle. This involvement may range from simple consultation with suppliers on design ideas to making suppliers fully responsible for the design of components or systems they will supply. While prior research shows the benefit of using this approach, execution remains a problem. The processes for identifying and integrating suppliers into the new product development (NPD) process in North American organizations are not understood well. This problem is compounded by the fact that design team members often are reluctant to listen to the technology and cost ideas made by suppliers in new product development efforts. We suggest a model of the key activities required for successful supplier integration into NPD projects, based on case studies with 17 Japanese and American manufacturing organizations. The model is validated using data from a survey of purchasing executives in global corporations with at least one successful and one unsuccessful supplier integration experience. The results suggest that (1) increased knowledge of a supplier is more likely to result in greater information sharing and involvement of the supplier in the product development process; (2) sharing of technology information results in higher levels of supplier involvement and improved outcomes; (3) supplier involvement on teams generally results in a higher achievement of NPD team goals; (4) in cases when technology uncertainty is present, suppliers and buyers are more likely to share information on NPD teams; and (5) the problems associated with technology uncertainty can be mitigated by greater use of technology sharing and direct supplier participation on new product development teams. A supplier's participation as a true member of a new product development team seems to result in the highest level of benefits, especially in cases when a technology is in its formative stages. [source]


Experiential Education In New Product Design And Business Development

THE JOURNAL OF PRODUCT INNOVATION MANAGEMENT, Issue 1 2002
Richard N. Cardozo
We describe an experiential approach to teaching new product design and business development in a year-long course that combines intensive project work with classroom education. Our course puts together up to six teams of graduate students from management and engineering who work on projects sponsored by individual companies. Student teams work with faculty from multiple disciplines and personnel from the sponsoring companies. The year-long format and involvement with company personnel provide opportunities for students to gain hands-on experience in a real product development project. Time constraints, coupled with students' determination to demonstrate what they can accomplish, stimulate teams to learn how to compress the design and development cycle. To help students generalize from their own projects to a wider universe of product design and business development phenomena, students participate continuously in constructive critiques of others' projects; and in presentations, case discussions and workshops that help them learn about the product and business development process itself. This article describes course objectives, syllabus, projects, sponsors, faculty, students and our course administration. In an effort to move towards a "paperless" course, we have put as much of the course material as possible on the World Wide Web; relevant websites are referred to in the article. At the end of the course each team presents a prototype and a protoplan to the sponsoring company in a final report, which in many cases includes suggestions for the sponsor on how to improve its design and development process. Students' positive evaluations, along with their comments, indicate that they are attaining their educational goals. Course projects have resulted in commercialized products, patents, continuing development projects in sponsoring companies, and placements for students. The course has generated public relations value for the units involved and for the university as a whole. © 2002 Elsevier Science Inc. All rights reserved. [source]


Understanding fire fighting in new product development,

THE JOURNAL OF PRODUCT INNOVATION MANAGEMENT, Issue 5 2001
Nelson P. Repenning
Despite documented benefits, the processes described in the new product development literature often prove difficult to follow in practice. A principal source of such difficulties is the phenomenon of fire fighting-the unplanned allocation of resources to fix problems discovered late in a product's development cycle. While it has been widely criticized, fire fighting is a common occurrence in many product development organizations. To understand both its existence and persistence, in this article I develop a formal model of fire fighting in a multiproject development environment. The major contributions of this analysis are to suggest that: (1) fire fighting can be a self-reinforeing phenomenon; and (2) multiproject development systems are far more susceptible to this dynamic than is currently appreciated. These insights suggest that many of the current methods for aggregate resource and product portfolio planning, while necessary, are not sufficient to prevent fire fighting and the consequent low performance. [source]


Disposable bioprocessing: The future has arrived

BIOTECHNOLOGY & BIOENGINEERING, Issue 2 2009
Govind Rao
Abstract Increasing cost pressures are driving the rapid adoption of disposables in bioprocessing. While well ensconced in lab-scale operations, the lower operating/ validation costs at larger scale and relative ease of use are leading to these systems entering all stages and operations of a typical biopharmaceutical manufacturing process. Here, we focus on progress made in the incorporation of disposable equipment with sensor technology in bioprocessing throughout the development cycle. We note that sensor patch technology is mostly being adapted to disposable cell culture devices, but future adaptation to downstream steps is conceivable. Lastly, regulatory requirements are also briefly assessed in the context of disposables and the Process Analytical Technologies (PAT) and Quality by Design (QbD) initiatives. Biotechnol. Bioeng. 2009;102: 348,356. © 2008 Wiley Periodicals, Inc. [source]


Flexibility-based competition: Skills and competencies in the new Europe

HUMAN FACTORS AND ERGONOMICS IN MANUFACTURING & SERVICE INDUSTRIES, Issue 1 2005
Andrzej K. Kozminski
In this paper the competitive strength and weaknesses of unifying and enlarging Europe in the global economy are examined. The focus is on people at work, their skills, and competencies. The idea of flexibility-based competition is developed implicating product and services portfolios, technologies, volumes, quality standards, distribution networks, and development cycles. Flexibility calls for speed maximizing management and special work force and labor markets characteristics. A new employment policy should change European labor markets making them more flexible and enabling "high-speed management." People able to adjust to flexible labor markets are described as "niche finders." Those who are equipped to excel in such markets and to win the competition game are presented in this paper as "top performers." Educational systems and particularly management education and development have to undergo deep restructuring to meet the challenge. An outline of new management education is provided. © 2005 Wiley Periodicals, Inc. Hum Factors Man 15: 35,47, 2005. [source]