Browsing by Author "Durugbo, Christopher"

Now showing 1 - 12 of 12
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    Data uncertainty assessment and information flow analysis for product-service systems in a library case study
    (Inderscience, 2010-12-31T00:00:00Z) Durugbo, Christopher; Erkoyuncu, John Ahmet; Tiwari, Ashutosh; Alcock, Jeffrey R.; Roy, Rajkumar; Shehab, Essam
    The provision of service is increasingly becoming a key driver for delivering customer value. This emphasis on service provision is promoted by approaches such as Product-Service Systems (PSSs) that deliver value in use based on integrated products and services. However, to achieve effective delivery of services, it is important to manage information flow and data uncertainty associated with information requirement. The paper proposes a methodology that consists of: (a) the assessment of data uncertainty through the numeral, unit, spread, assessment and pedigree approach and a pedigree matrix consisting of data uncertainties to be scored based on their influence on the system; and (b) the analysis of information flow by means of data flow diagrams that depict information exchanges and an info-dynamic engine that measures the efficiency and recommends improvements for information flows in PSSs. A library case study was undertaken to show how such a methodology can be applied.
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    An effective uncertainty based framework for sustainable industrial product-service system transformation
    (Elsevier, 2018-09-22) Erkoyuncu, John Ahmet; Roy, Rajkumar; Shehab, Essam; Durugbo, Christopher; Khan, Samir; Datta, Partha
    Industrial Product-Service Systems (IPS2) can provide insights to enhance the environmental sustainability and lower environmental impact. However, its successful realisation for preventing the production of waste, while increasing efficiencies in the uses of energy and human capital remains a highly convoluted problem. This research article aims to address this issue by presenting an innovative uncertainty-based framework that can be used to assist in achieving increased sustainability within the context of IPS2. The developed framework explains the drivers for decision-making and cost to enable sustainability improvements in transforming to industrial services. This is based on academic literature, and multiple case studies of seven industrial companies with over 30 h of semi-structured interviews. The validation of the framework through two case studies demonstrates that uncertainty management can enable resource efficiency and offer sustainable transformation to service provision.
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    An Infodynamic Engine Approach to Improving the Efficiency of Information Flow in a Product-Service System
    (Cranfield University Press, 2009-04-01) Durugbo, Christopher; Tiwari, Ashutosh; Alcock, Jeffrey R.; Rajkumar Roy; Essam Shehab
    In this paper, literature was used to identify and present a worked example of the use of an Infodynamic engine. It shows that: (a) Product-Service System (PSS) information flows can be characterised by such an engine; (b) the engine can measure the efficiency of information flow in a PSS; (c) the engine can be used as a tool to make recommendations about improvements in information flow efficiency in a PSS.
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    Information channel diagrams: an approach for modelling information flows
    (Springer Science Business Media, 2012-06-19) Durugbo, Christopher; Hutabarat, Windo; Tiwari, Ashutosh; Alcock, Jeffrey R.
    In this article, the ‘information channel diagram' (ICD) approach is introduced as a diagrammatical tool for modelling information flow during the delivery phase of organisations in which goods are deployed or delivered to customers. An initial review and evaluation of current tools for modelling information flow will be conducted based on the characteristics of information flow during the delivery phases in organisations. Diagrammatic primitives and a prescribed modelling methodology for developing an ICD will be presented, and a case scenario of the delivery phase of an organisation within the health care sector will be applied to demonstrate the use of the ICD. The article concludes by discussing some applications, generalisation potential and limitations of the ICD approac
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    Managing Information Flows for Product-Service Systems Delivery
    (2010-04-15T00:00:00Z) Durugbo, Christopher; Tiwari, Ashutosh; Alcock, Jeffrey R.
    The delivery phase is an integral part of the product-service system (PSS) approach that requiresinteractions involving the external and internal flow of information. Managing information flows for a companythat adopts the PSS approach is therefore important to understanding interactions between manufacturersand customers during the delivery of a PSS.The purpose of this paper is to use literature to identify the main approaches for managing information flowduring PSS delivery. This paper plans to contribute to knowledge by: analysing the main approaches formanaging information flow during the delivery phase and, making recommendations for future research.
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    Modelling collaboration using complex networks
    (Elsevier Science B.V., Amsterdam., 2011-08-01T00:00:00Z) Durugbo, Christopher; Hutabarat, Windo; Tiwari, Ashutosh; Alcock, Jeffrey R.
    Collaboration means working together to achieve a common goal or to solve a problem, and in modern businesses, it is an important factor for information sharing and quality. This is due to the ability of collaborations to shape the structure and behaviour of organisations through the pooling of expertise and standardising of work patterns. Grounded on complex network theory and collaborative design research, a mathematical model of information flow for analysing collaboration in organisations is proposed in this article. The model defines concepts for characterising organisational structures for collaboration and proposes indicators for assessing organisational behaviour in terms of collaboration within organisations. The article concludes by discussing the applications and limitations of the proposed model.
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    Modelling information flow for organisations delivering microsystems technology
    (Cranfield University, 2011-01) Durugbo, Christopher; Tiwari, Ashutosh; Alcock, Jeffrey R.
    Motivated by recent growth and applications of microsystems technology (MST), companies within the MST domain are beginning to explore avenues for understanding, maintaining and improving information flow, within their organisations and to/from customers, with a view to enhancing delivery performance. Delivery for organisations is the flow of goods from sellers to buyers and a classic approach to understanding information flow is via the use of modelling techniques. Cont/d.
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    Product-Service Systems across Industry Sectors: Future Research Needs and Challenges
    (2010-04-15T00:00:00Z) Durugbo, Christopher; Bankole, O. O.; Erkoyuncu, John Ahmet; Tiwari, Ashutosh; Alcock, Jeffrey R.; Roy, Rajkumar; Shehab, Essam
    This paper explores the current research in Product-Service Systems (PSS) across various industries suchas industrials, basic materials, utilities, and financials, based on the Industry Classification Benchmark (ICB).PSS elements are identified within each industry in terms of tangible and intangible elements of productsand services. Based on this identification, the differences in PSS delivery across industry sectors aredefined based on two sources namely (i) actors, relationships, and networks, and (ii) delivery packages.Founded on the differences identified, the paper explains future research needs and challenges with focuson the scope of PSS, intra- and inter- sector flows and interactions between actors involved in PSS deliveryand PSS design.
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    A review of information flow diagrammatic models for product-service systems
    (Springer Science Business Media, 2011-02-28T00:00:00Z) Durugbo, Christopher; Tiwari, Ashutosh; Alcock, Jeffrey R.
    A product-service system (PSS) is a combination of products and services to create value for both customers and manufacturers. Modelling a PSS based on function orientation offers a useful way to distinguish system inputs and outputs with regards to how data are consumed and information is used, i.e. information flow. This article presents a review of diagrammatic information flow tools, which are designed to describe a system through its functions. The origin, concept and applications of these tools are investigated, followed by an analysis of information flow modelling with regards to key PSS properties. A case study of selection laser melting technology implemented as PSS will then be used to show the application of information flow modelling for PSS design. A discussion based on the usefulness of the tools in modelling the key elements of PSS and possible future research directions are also presented.
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    Service delivery for microsystems production: A study
    (Elsevier, 2012-01-26) Durugbo, Christopher; Tiwari, Ashutosh; Alcock, Jeffrey R.
    This paper presents the findings of an investigation into the industry practice of service delivery within microsystems technologies (MST) (also known as micro- electro-mechanical systems, MEMS) production. A study was undertaken to evaluate 100 MST companies that deliver integrated products and services i.e. a product- service system (PSS). The aim of the study is to: (i) analyse the main types of services delivered by MST companies, and (ii) make recommendations for improving MST production. The PSS approach to production and manufacturing is introduced and used to evaluate the current state of service delivery within MST production. The findings of the study are then used to make recommendations for improving future MST production.
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    Survey of media forms and information flow models in microsystems companies
    (2010-02-22T00:00:00Z) Durugbo, Christopher; Tiwari, Ashutosh; Alcock, Jeffrey R.; Camarinha-Matos, L. M.; Pereira, P.; Ribeiro, L.
    The paper presents the findings of a survey of 40 microsystems companies that was carried out to determine the use and the purpose of use of media forms and information flow models within these companies. These companies as "product-service systems' delivered integrated products and services to realise customer solutions. Data collection was carried out by means of an online survey over 3 months. The survey revealed that 42.5% of respondents made use of data flow diagrams and 10% made use of design structure matrices. The survey also suggests that a majority of companies (75%) made use of textual and diagrammatic media forms for communication, analysis, documentation and representation during design and development processes. The paper also discusses the implications of the survey findings to product-service systems.
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    SysML for the Analysis of Product-Service Systems Requirements
    (2010-04-15T00:00:00Z) Durugbo, Christopher; Hutabarat, Windo; Tiwari, Ashutosh; Alcock, Jeffrey R.
    In this paper, the Systems Modelling Language (SysML) is introduced as a technique for the design of aproduct-service system (PSS). In examples of the requirements diagram in SysML, this paper shows that:(1) a PSS can be analysed by the SysML technique, and (2) the SysML can model the requirements of aPSS in orientations according to product, use or result. Recommendations based on the example will thenbe used to suggest improvements in the design of a PSS.