A framework for the definition of metrics for actor-dependency models

Actor-dependency models are a formalism aimed at providing intentional descriptions of processes as a network of dependency relationships among actors. This kind of models is currently widely used in the early phase of requirements engineering as well as in other contexts such as organizational analysis and business process reengineering. In this paper, we are interested in the definition of a framework for the formulation of metrics over these models. These metrics are used to analyse the models with respect to some properties that are interesting for the system being modelled, such as security, efficiency or accuracy. The metrics are defined in terms of the actors and dependencies of the model. We distinguish three different kinds of metrics that are formally defined, and then we apply the framework at two different layers of a meeting scheduler system.Postprint (published version

Meeting the challenge of change: handbook for the peer support pilot programme

"This handbook sets out the aims and objectives of the Children’s Workforce Development Council’s (CWDC) peer support pilot programme and the approach on which it is based; outlines the task for those taking on a peer support role; and explains how participation in networking events led by your peers will support you in your own role in shaping how your organisation delivers social work for children and families." - introduction

Definition of the on-time delivery indicator in rapid software development

Rapid software development (RSD) is an approach for developing software in rapid iterations. One of the critical success factors of an RSD project is to deliver the product releases on time and with the planned features. In this paper, we elaborate an exploratory definition of the On-Time Delivery strategic indicator in RSD based on the literature and interviews with four companies. This indicator supports decision-makers to detect development problems in order to avoid delays and to estimate the additional time needed when requirements, and specifically quality requirements, are considered.Peer ReviewedPostprint (author's final draft

National evaluation of Partnerships for Older People Projects

Executive Summary The Partnership for Older People Projects (POPP) were funded by the Department of Health to develop services for older people, aimed at promoting their health, well-being and independence and preventing or delaying their need for higher intensity or institutional care. The evaluation found that a wide range of projects resulted in improved quality of life for participants and considerable savings, as well as better local working relationships. • Twenty-nine local authorities were involved as pilot sites, working with health and voluntary sector partners to develop services, with funding of £60m • Those projects developed ranged from low level services, such as lunch-clubs, to more formal preventive initiatives, such as hospital discharge and rapid response services • Over a quarter of a million people (264,637) used one or more of these services • The reduction in hospital emergency bed days resulted in considerable savings, to the extent that for every extra £1 spent on the POPP services, there has been approximately a £1.20 additional benefit in savings on emergency bed days. This is the headline estimate drawn from a statistically valid range of £0.80 to £1.60 saving on emergency bed days for every extra £1 spent on the projects. • Overnight hospital stays were seemingly reduced by 47% and use of Accident & Emergency departments by 29%. Reductions were also seen in physiotherapy/occupational therapy and clinic or outpatient appointments with a total cost reduction of £2,166 per person • A practical example of what works is pro-active case coordination services, where visits to A&E departments fell by 60%, hospital overnight stays were reduced by 48%, phone calls to GPs fell by 28%, visits to practice nurses reduced by 25% and GP appointments reduced by 10% • Efficiency gains in health service use appear to have been achieved without any adverse impact on the use of social care resources • The overwhelming majority of the POPP projects have been sustained, with only 3% being closed – either because they did not deliver the intended outcomes or because local strategic priorities had changed • PCTs have contributed to the sustainability of the POPP projects within all 29 pilot sites. Moreover, within almost half of the sites, one or more of the projects are being entirely sustained through PCT funding – a total of 20% of POPP projects. There are a further 14% of projects for which PCTs are providing at least half of the necessary ongoing funding • POPP services appear to have improved users’ quality of life, varying with the nature of individual projects; those providing services to individuals with complex needs were particularly successful, but low-level preventive projects also had an impact • All local projects involved older people in their design and management, although to varying degrees, including as members of steering or programme boards, in staff recruitment panels, as volunteers or in the evaluation • Improved relationships with health agencies and the voluntary sector in the locality were generally reported as a result of partnership working, although there were some difficulties securing the involvement of GP

Supply chain control: Trade-offs and system requirements

The official published version can be accessed from the link below.A paper describes the underlying forces which drive change in manufacturing enterprises and supply chains. It sets out the complexities in modern capitalism and global economics and illustrates the trade-offs that can be made. IT systems which are required to assist improvements to both customer service and enterprise manufacturing performance are explained, alluding to the special case for the semiconductor industry. Arguments are presented showing how the new tools being developed with the ESPRIT project 20544, X-CITTIC, will satisfy the control needs for a virtual enterprise. This paper describes the underlying forces which drive change in manufacturing enterprises and supply chains. It sets out the complexities in modem capitalism and global economics and illustrates the trade-offs that can be made. IT systems which are required to assist improvements to both customer service and enterprise manufacturing performance are explained alluding to the special case for the semiconductor industry. Finally it shows how the new tools being developed with the ESPRIT project 20544, XCITTIC, will satisfy the control needs for a virtual enterprise

Adopting and Implementing AMT: New Data on Key Factors from the Aeronautical Industry.

The objective of this paper is to take a greater in-depth look at which factors might be considered to be key to the performance of investments made in advanced manufacturing technologies (AMT), given their supposed positive effects, and on the influence that the time these factors are taken into account during the adoption and implementation process can have on that relationship. It provides a specially devised empirical analysis in the aeronautical sector in the south of Spain. A survey of the 20 plants in the population was conducted via a postal questionnaire between July 1999 and April 2001, with a structured interview being held at a later date. The testing of hypotheses was performed by applying the t-test to independent samples. The results show that the only factor that has a clear and positive effect on performance is the training of personnel. It can also be seen that a lack of strategic planning contributes to dampening the effects of investments. These results may be of some help to management staff and public administrators in charge of promoting the process of technological innovation, by indicating actions that need to be taken in order to successfully adopt and implement AMT.