996 resultados para Product-harm Crisis
Resumo:
Creation of lifecycle value - a balance of performance with cost and other attributes - represents a challenge for the development of aerospace products in the twenty-first century. This paper examines the concept of lifecycle value that stems from existing approaches of value management and analysis, lifecycle costing, and systems engineering. To ascertain common characteristics of lifecycle value creation, case studies were done for four aircraft programs: F/A- 18E/F, JAS 39 Gripen, F-16C/D, and B-777. A lifecycle value creation framework is introduced, comprised of three phases: value identification, value proposition, value delivery. Based upon observed practices in the four case studies, six value creation attributes were identified. Capability maturity models for the six attributes and three value creation phases are presented. The resulting framework represents a starting point for programs seeking to create lifecycle value for aerospace products.
Resumo:
Due to a dramatic reduction in defense procurement, the benchmark for developing new defense systems today is performance at an affordable cost. In an attempt to encircle a more holistic perspective of value, lifecycle value has evolved as a concept within the Lean Aerospace Initiative, LAI. The implication of this is development of products incorporating lifecycle and long-term focus instead of a shortsighted cost cutting focus. The interest to reduce total cost of ownership while still improving performance, availability, and sustainability, other dimensions taken into account within the lifecycle value approach, falls well within this context. Several factors prevent enterprises from having a holistic perspective during product development. Some important aspects are increased complexity of the products and significant technological uncertainty. The combination of complexity in system design and the limits of individual human comprehension typically prevent a best value solution to be envisioned. The purpose of this research was to examine relative contributions in product development and determine factors that significantly promote abilities to consider and achieve lifecycle value. This paper contributes a maturity matrix based on important practices and lessons learned through extensive interview based case studies of three tactical aircraft programs, including experiences from more than 100 interviews.
Resumo:
“What is value in product development?” is the key question of this paper. The answer is critical to the creation of lean in product development. By knowing how much value is added by product development (PD) activities, decisions can be more rationally made about how to allocate resources, such as time and money.
Resumo:
The descriptions below and the attached diagrams are outputs of the 1998 LAI Product Development Focus Team workshop on the Value Chain in Product Development. A working group at that workshop was asked to model the product development process: in terms of the phases of product development and their interfaces, boundaries and outputs. Their work has proven to be generally useful to LAI researchers and industry members, and so is formalized here.
Resumo:
The essence of lean is very simple, but from a research and implementation point of view overwhelming. Lean is the search for perfection through the elimination of waste and the insertion of practices that contribute to reduction in cost and schedule while improving performance of products. This concept of lean has wide applicability to a large range of processes, people and organizations, from concept design to the factory floor, from the laborer to the upper management, from the customer to the developer. Progress has been made in implementing and raising the awareness of lean practices at the factory floor. However, the level of implementation and education in other areas, like product development, is very low.
Resumo:
-Definitions -Value concepts -Value creation framework -Value creation and product development
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This paper explores the concept of Value Stream Analysis and Mapping (VSA/M) as applied to Product Development (PD) efforts. Value Stream Analysis and Mapping is a method of business process improvement. The application of VSA/M began in the manufacturing community. PD efforts provide a different setting for the use of VSA/M. Site visits were made to nine major U.S. aerospace organizations. Interviews, discussions, and participatory events were used to gather data on (1) the sophistication of the tools used in PD process improvement efforts, (2) the lean context of the use of the tools, and (3) success of the efforts. It was found that all three factors were strongly correlated, suggesting success depends on both good tools and lean context. Finally, a general VSA/M method for PD activities is proposed. The method uses modified process mapping tools to analyze and improve process.
Resumo:
This paper explores the concept of Value Stream Analysis and Mapping (VSA/M) as applied to Product Development (PD) efforts. Value Stream Analysis and Mapping is a method of business process improvement. The application of VSA/M began in the manufacturing community. PD efforts provide a different setting for the use of VSA/M. Site visits were made to nine major U.S. aerospace organizations. Interviews, discussions, and participatory events were used to gather data on (1) the sophistication of the tools used in PD process improvement efforts, (2) the lean context of the use of the tools, and (3) success of the efforts. It was found that all three factors were strongly correlated, suggesting success depends on both good tools and lean context. Finally, a general VSA/M method for PD activities is proposed. The method uses modified process mapping tools to analyze and improve process.
Resumo:
Diagnosticar el alcance de la crisis que afecta a la profesión docente y estudiar los factores que han podido intervenir y algunas de las explicaciones que se han sugerido. Todo ello referido a uno de los agentes fundamentales del proceso educativo, los profesores, y en relación con el contexto educativo español. Profesorado de EEMM y EGB que desempeña su función en lo que se ha dado en llamar 'niveles no universitarios'. Se analizan los siguientes aspectos: los efectos de la crisis sobre el profesorado, algunas de las contradicciones con que se desenvuelve su labor, así como las respuestas adaptativas que se han producido y que se pueden estar produciendo en este grupo ocupacional. Por último se dan algunas sugerencias dirigidas a superar tal situación. Los factores generales que han incidido en la crisis de la profesión docente son los siguientes: origen social, femeneización, naturaleza de los clientes, papel social desempeñado, nivel de exigencia y formación profesional, configuración histórica, profesionalización insuficiente y fuerte expansión de la demanda. La crisis de la profesión también ha estado incidida por una serie de factores estructurales como son: la fuerte transformación que han sufrido las distintas estructuras sociales en los últimos 30 años, el abandono del modelo social tradicional, el cambio de posición de la escuela como agente de socialización. Se han dado varias hipótesis para explicar el fenómeno, pero ninguna de ellas es suficiente para dar cuenta de la complejidad y alcance de la cuestión. Los docentes viven la contradicción de tener encomendada una labor de alta exigencia pero de muy bajo prestigio. Dicha contradicción se manifiesta en tres ámbitos: en las estrategias de organización, en la práctica docente y en su proyección profesional.
Resumo:
“What is value in product development?” is the key question of this paper. The answer is critical to the creation of lean in product development. By knowing how much value is added by product development (PD) activities, decisions can be more rationally made about how to allocate resources, such as time and money. In order to apply the principles of Lean Thinking and remove waste from the product development system, value must be precisely defined. Unfortunately, value is a complex entity that is composed of many dimensions and has thus far eluded definition on a local level. For this reason, research has been initiated on “Measuring Value in Product Development.” This paper serves as an introduction to this research. It presents the current understanding of value in PD, the critical questions involved, and a specific research design to guide the development of a methodology for measuring value. Work in PD value currently focuses on either high-level perspectives on value, or detailed looks at the attributes that value might have locally in the PD process. Models that attempt to capture value in PD are reviewed. These methods, however, do not capture the depth necessary to allow for application. A methodology is needed to evaluate activities on a local level to determine the amount of value they add and their sensitivity with respect to performance, cost, time, and risk. Two conceptual tools are proposed. The first is a conceptual framework for value creation in PD, referred to here as the Value Creation Model. The second tool is the Value-Activity Map, which shows the relationships between specific activities and value attributes. These maps will allow a better understanding of the development of value in PD, will facilitate comparison of value development between separate projects, and will provide the information necessary to adapt process analysis tools (such as DSM) to consider value. The key questions that this research entails are: · What are the primary attributes of lifecycle value within PD? · How can one model the creation of value in a specific PD process? · Can a useful methodology be developed to quantify value in PD processes? · What are the tools necessary for application? · What PD metrics will be integrated with the necessary tools? The research milestones are: · Collection of value attributes and activities (September, 200) · Development of methodology of value-activity association (October, 2000) · Testing and refinement of the methodology (January, 2001) · Tool Development (March, 2001) · Present findings at July INCOSE conference (April, 2001) · Deliver thesis that captures a formalized methodology for defining value in PD (including LEM data sheets) (June, 2001) The research design aims for the development of two primary deliverables: a methodology to guide the incorporation of value, and a product development tool that will allow direct application.
Resumo:
We compare a broad range of optimal product line design methods. The comparisons take advantage of recent advances that make it possible to identify the optimal solution to problems that are too large for complete enumeration. Several of the methods perform surprisingly well, including Simulated Annealing, Product-Swapping and Genetic Algorithms. The Product-Swapping heuristic is remarkable for its simplicity. The performance of this heuristic suggests that the optimal product line design problem may be far easier to solve in practice than indicated by complexity theory.
Resumo:
Seguimiento durante el S. XIX de cómo se instaura la Literatura dentro del currículo de Primaria y Secundaria. Elaborar y seguir la instauración del Sistema Nacional de Educación en España durante el S. XIX. Partiendo de documentos estatales, se vacían los archivos municipales y de instituciones educativas de las provincias de Almería, Granada y Córdoba. La investigación es un ensayo histórico sobre cómo se va implantando el Sistema Nacional de Educación en España basado en fuentes documentales diversas (libros, archivos y revistas de la época) a través de la implantación en el currículo de la Literatura. Fuentes documentales. Análisis de contenido de las fuentes documentales. No hay decadencia del Sistema Escolar Español a finales del S. XIX.
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Es una investigación pionera que pretende comprender el desarrollo del fenómeno social Nueva Era en Bogotá, por ello el objetivo de este estudio es indagar sobre los motivos que tiene los bogotanos para consumir productos y servicios de la Nueva Era. A partir de una metodología de investigación cualitativa donde se utilizaron técnicas de recolección tales como: la entrevista semi-estructurada, el cuestionario y la observación participante donde las unidades de análisis fueron los propietarios y consumidores de tres centros calificados Nueva Era que fueron, Serviteca del Alma, Centro Unifinismo, Wahikarie de Colombia E.U, se logro corroborar la hipótesis que el capitalismo informacional con su economía de mercado y la globalización que han generado una sociedad de red, ha desatado una crisis de sentido en los individuos, el llamado mercado Nueva Era es una alternativa para resolver dicha problemática.
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Análisis de la intervención de la OTAN en la crisis interna de Kosovo, como reflejo de las transformaciones del Concepto Estratégico de 1999.
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El conflicto desatado en la República Democrática del Congo desde mediados de la década de los noventa, representa una de las crisis más profundas del continente africano debido a una compleja dinámica interna y regional. Así, las acciones de respuesta a las crisis y prevención y gestión de conflictos llevadas a cabo por la Unión Europea en la RDC representan las primeras operaciones autónomas y fuera de Europa, en un país altamente frágil que constituye una fuente de inestabilidad regional, convirtiéndolo así en un caso de investigación idoneo para examinar los exitos y desafios que se han presentado al concretar la política Europea de Seguridad y Defensa.