8,122 research outputs found
The imperfect hiding : some introductory concepts and preliminary issues on modularity
In this work we present a critical assessment of some problems and open questions on the debated notion of modularity. Modularity is greatly in fashion nowadays, being often proposed as the new approach to complex artefact production that enables to combine fast innovation pace, enhanced product variety and reduced need for co-ordination. In line with recent critical assessments of the managerial literature on modularity, we sustain that modularity is only one among several arrangements to cope with the complexity inherent in most high-technology artefact production, and by no means the best one. We first discuss relations between modularity and the broader (and much older within economics) notion of division of labour. Then we sustain that a modular approach to labour division aimed at eliminating technological interdependencies between components or phases of a complex production process may have, as a by-product, the creation of other types of interdependencies which may subsequently result in inefficiencies of various types. Hence, the choice of a modular design strategy implies the resolution of various tradeoffs. Depending on how such tradeoffs are solved, different organisational arrangements may be created to cope with âresidualâ interdependencies. Hence, there is no need to postulate a perfect isomorphism, as some recent literature has proposed, between modularity at the product level and modularity at the organisational level
The imperfect hiding: Some introductory concepts and preliminary issues on modularity.
In this work we present a critical assessment of some problems and open questions on the debated notion of modularity. Modularity is greatly in fashion nowadays, being often proposed as the new approach to complex artefact production that enables to combine fast innovation pace, enhanced product variety and reduced need for co-ordination. In line with recent critical assessments of the managerial literature on modularity, we sustain that modularity is only one among several arrangements to cope with the complexity inherent in most high-technology artefact production, and by no means the best one. We first discuss relations between modularity and the broader (and much older within economics) notion of division of labour. Then we sustain that a modular approach to labour division aimed at eliminating technological interdependencies between components or phases of a complex production process may have, as a by-product, the creation of other types of interdependencies which may subsequently result in inefficiencies of various types. Hence, the choice of a modular design strategy implies the resolution of various tradeoffs. Depending on how such tradeoffs are solved, different organisational arrangements may be created to cope with 'residual' interdependencies. Hence, there is no need to postulate a perfect isomorphism, as some recent literature has proposed, between modularity at the product level and modularity at the organisational level.
Coordinating Knowledge Work in Multi-Team Programs: Findings from a Large-Scale Agile Development Program
Software development projects have undergone remarkable changes with the
arrival of agile development methods. While intended for small, self-managing
teams, these methods are increasingly used also for large development programs.
A major challenge in programs is to coordinate the work of many teams, due to
high uncertainty in tasks, a high degree of interdependence between tasks and
because of the large number of people involved. This revelatory case study
focuses on how knowledge work is coordinated in large-scale agile development
programs by providing a rich description of the coordination practices used and
how these practices change over time in a four year development program with 12
development teams. The main findings highlight the role of coordination modes
based on feedback, the use of a number of mechanisms far beyond what is
described in practitioner advice, and finally how coordination practices change
over time. The findings are important to improve the outcome of large
knowledge-based development programs by tailoring coordination practices to
needs and ensuring adjustment over time.Comment: To appear in Project Management Journa
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Design Space Exploration in Cyber-Physical Systems
Cyber physical systems (CPS) integrate a variety of engineering areas such as control, mechanical and computer engineering in a holistic design effort. While interdependencies between the different disciplines are key attributes of CPS design science, little is known about the impact of design decisions of the cyber part on the overall system qualities. To investigate these interdependencies, this paper proposes a simulation-based Design Space Exploration (DSE) framework that considers detailed cyber system parameters such as cache size, bus width, and voltage levels in addition to physical and control parameters of the CPS. We propose an exploration algorithm that surfs the parameter configurations in the cyber physical sub-systems, in order to approximate the Pareto-optimal design points with regards to the trade-os among the design objectives, such as energy consumption and control stability. We apply the proposed framework to a network control system for an inverted-pendulum application. The presented holistic evaluation of the identified Pareto-points reveals the presence of non-trivial trade-os, which are imposed by the control, physical, and detailed cyber parameters. For instance the identified energy and control optimal design points comprise configurations with a wide range of CPU speeds, sample times and cache configuration following non-trivial zig-zag patterns. The proposed framework could identify and manage those trade-os and, as a result, is an imperative rst step to automate the search for superior CSP configurations
TOWARDS FLEXIBLE HOUSING: BASIC DESIGN PRINCIPLES
In times of radical social transformations, the demand for flexibility of space can be identified as one of the strategic priorities of maintaining the urban environment. In the context of social, economic and environmental sustainability, housing must imply an integrated ability to respond to programme changes, which can be achieved through the concept of flexibility. By identifying and applying certain design principles, it is possible to prevent the problem of functional obsolescence and unsuitability of the living environment that modern cities are facing. The apartment as an immediate living environment is the most direct indicator of the degree of adaptability of the physical surrounding to modern human needs. The analysis of basic design principles, using an example of flexible apartment, examines the spatial correlations and laws of the relationship between elements of the plan, which provides the basis for the authors to draw the conclusions about the reality of applying this concept in practice
Microservice Transition and its Granularity Problem: A Systematic Mapping Study
Microservices have gained wide recognition and acceptance in software
industries as an emerging architectural style for autonomic, scalable, and more
reliable computing. The transition to microservices has been highly motivated
by the need for better alignment of technical design decisions with improving
value potentials of architectures. Despite microservices' popularity, research
still lacks disciplined understanding of transition and consensus on the
principles and activities underlying "micro-ing" architectures. In this paper,
we report on a systematic mapping study that consolidates various views,
approaches and activities that commonly assist in the transition to
microservices. The study aims to provide a better understanding of the
transition; it also contributes a working definition of the transition and
technical activities underlying it. We term the transition and technical
activities leading to microservice architectures as microservitization. We then
shed light on a fundamental problem of microservitization: microservice
granularity and reasoning about its adaptation as first-class entities. This
study reviews state-of-the-art and -practice related to reasoning about
microservice granularity; it reviews modelling approaches, aspects considered,
guidelines and processes used to reason about microservice granularity. This
study identifies opportunities for future research and development related to
reasoning about microservice granularity.Comment: 36 pages including references, 6 figures, and 3 table
Implications of Privacy Needs and Interpersonal Distancing Mechanisms for Space Station Design
The literature on privacy needs, personal space, interpersonal distancing, and crowding is reveiwed with special reference to spaceflight and spaceflight analogous conditions. A quantitative model is proposed for understanding privacy, interpersonal distancing, and performance. The implications for space station design is described
Rethinking the role of suppliers in global value chain theory
GVC governance theory explains the management of interfirm relationships in the context of offshoring and outsourcing in the latter part of the 20th century. It emphasises the power of lead firms to shape the new global supply chains that were developed at this time. Parsimonious theorising combined with lead firm power has led to criticisms that the theory is determinist and fails to allow for the agency of the non-lead firms that are often referred to as suppliers. Critics have argued that more attention needs to be given to supplier agency and capability formation in the places where value chains touchdown in the global economy. This contribution argues that the weaknesses of GVC governance theory lie in its limited conception of the capability approach to industrial organisation and its focus on efficient government solutions at a given point in time. Introducing a dynamic capability perspective makes it possible to understand the circumstances in which suppliers are likely to possess capabilities that are valuable to their customers and allows a movement away from a static, equilibrium perspective. However, this view of suppliers does not rule out the importance of structural constraints on firm opportunities. The role of architectural manipulation in creating power asymmetries in GVCs is discussed
Value chain governance in the age of platforms
Global value chain (GVC) theory focuses globalisation in the late 20th century. While the theory claims to apply generally to interfirm relationships, much of GVC analysis has focused on the incorporation of developing country manufacturers into the supply chains of global lead firms. This literature has frequently expressed doubts about whether integration into such chains offers opportunities for innovation and upgrading. More recently, globalised production has seen the emergence of market and technology platforms and platform leaders. The distinctive feature of platforms is that they require innovation by other companies to turn platforms into products. Analysis of platform governance can contribute to the further development of GVC governance theory. Using secondary material on platform leaders such as Intel and Apple and primary research on Chinese-owned mobile phone companies, the paper shows how examination of governance in the context of platforms allows a recuperation of understudied and undertheorised elements of GVC governance theory
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