The PROgnostic Value of unrequested Information in Diagnostic Imaging (PROVIDI) Study: rationale and design

We describe the rationale for a new study examining the prognostic value of unrequested findings in diagnostic imaging. The deployment of more advanced imaging modalities in routine care means that such findings are being detected with increasing frequency. However, as the prognostic significance of many types of unrequested findings is unknown, the optimal response to such findings remains uncertain and in many cases an overly defensive approach is adopted, to the detriment of patient-care. Additionally, novel and promising image findings that are newly available on many routine scans cannot be used to improve patient care until their prognostic value is properly determined. The PROVIDI study seeks to address these issues using an innovative multi-center case-cohort study design. PROVIDI is to consist of a series of studies investigating specific, selected disease entities and clusters. Computed Tomography images from the participating hospitals are reviewed for unrequested findings. Subsequently, this data is pooled with outcome data from a central population registry. Study populations consist of patients with endpoints relevant to the (group of) disease(s) under study along with a random control sample from the cohort. This innovative design allows PROVIDI to evaluate selected unrequested image findings for their true prognostic value in a series of manageable studies. By incorporating unrequested image findings and outcomes data relevant to patients, truly meaningful conclusions about the prognostic value of unrequested and emerging image findings can be reached and used to improve patient-care

Value-based design decision rationale documentation: Principles and empirical feasibility study

The explicit documentation of the rationale of design decisions is a practice generally encouraged, but rarely implemented in industry because of a variety of inhibitors. Methods proposed in the past for Design Decisions Rationale Documentation (DDRD) aimed to maximize benefits for the DDRD consumer by imposing on the producer of DDRD the burden to document all the potentially useful information. We propose here a compromise which consists in tailoring DDRD, based on its intended use or purpose. In our view, the adoption of a tailored DDRD, consisting only of the required set of information, would mitigate the effects of DDRD inhibitors. The aim of this paper is twofold: i) to discuss the application of Value-Based Software Engineering principles to DDRD, ii) to describe a controlled experiment to empirically analyze the feasibility of the proposed method. Results show that the level of utility related to the same category of DDRD information significantly changes depending on its purpose; such result is novel and it demonstrates the feasibility of the proposed value-based DDRD

Discovering Strategies to Improve Business Value in Outsourcing Projects

This paper deals with the problem of leveraging client business value in a software development outsourcing relationship. We have observed software development projects from two different Dutch IT outsourcing companies and studied the approach they apply in their (successful) projects. The results show that they create a role dedicated to facilitate communication. This arrangement has the potential to put team members in a better position to communicate, facilitating the transfer of information supporting the rationale behind design decisions. Teams are thus better equipped to anticipate change and to react faster in solving everyday problems. This paper describes our observations and the practical implications we expect, such as the improvement of re-buy intention on the client's side

Organisational Policy and Shop-floor Requests in Design: Visualisation of the Argumentation behind an Information System for the Swedish Trade Union Movement

Design Rationale is an approach to the design of information systems which highlights the underlying argumentative reasoning and documentation of design decisions. The Argumentative Design (ArD) method extends Design Rationale to address organisational problem identification and the formulation of needs to be supported by the system. In this study, ArD was further modified and then applied in the early phase of the design of an information system for shop stewards in the Swedish trade union movement. The application of ArD revealed that both similarities and significant discrepancies existed between top-management information technology strategies and shop-floor needs, and that the strategies involve fundamental power-relation issues in terms of centralisation versus decentralisation and individualism versus collectivism. It is suggested that ArD can be of general benefit in early design phases by eliciting fundamental organisational issues and by illustrating what impact chosen information technology solutions may have on organisations. The study is of value for other unions wishing to learn from the Swedish experience and the modified ArD approach can also be used in other contexts where several interest groups are to be satisfied by a system

BIM business value generation theory : a grounded theory approach

Theoretical developments in the Architectural Engineering and Construction (AEC) industry have been deficient, especially for the operations and use phase. The need for asset owners to understand the Building Information Modelling (BIM) process and to realise business value from BIM implementation cannot be over emphasised. This study investigates a BIM-based Asset Management (AM) system to examine how business value can be created for the asset owner. The BIM-based AM system is evaluated from the Transformation-Flow-Value (TFV) generation view to define the characteristics and functions. This is followed by the grounding of data to develop a novel explanatory theory through the development of conceptual categories. A qualitative research approach based on a grounded theory methodology is utilised to generate a proposition on how BIM can create value in an AM system. The study involves a five-stage research design using interviews and document analysis to inform the phenomenon of BIM business value creation in AM. The paper highlights that BIM business value generation in AM is dependent on three main categories, which are: development of the information requirements, creation of the information content and management of the information content. From the grounded data, the study finds that it is crucial for asset owners to develop their information requirements since the information requirements development category guides the data creation, data management and value generation. Furthermore, the development of a sound rationale that appropriately translates the organisational business objectives is critical to value generation. The paper studies how BIM can create business value in an AM system using a grounded theory methodology. The results show that the rationale for developing BIM-based information requirements determines the value that will be generated by the AM system. The key contribution of the paper is that it presents a novel theory for BIM-based AM. One of the contributions of this study is the demonstration of the application of grounded theory within the AEC industry. Also, the study demonstrates the relationships between concepts and how they emerge from the grounded data

The value of design in UK FMCG packaging development: An industry case study exploring practitioner design practice rationale & decision-making

Recognising the value design offers has been of great importance for the effective development and launch of Fast-Moving Consumer Goods (FMCG). Packaging design is acknowledged as a significant success factor in New Product Development (NPD) for the FMCG industry to help provide clear product differentiation and competitive advantage in saturated and complex markets. The search for approaches to maintain or improve market share has driven the field of consumer research over the last few decades. The potential to influence consumer perception of a product through visual design is well documented in the literature. Packaging design relies on effective management of symbolic, semantic, aesthetic and visual information elements. Stakeholders have been increasingly demanding that design practitioners provide a clear rationale and accountability for their design proposals in this risk-averse industry. However, limited research has been produced to address how packaging design and development is managed; and, how design practitioners rationalise and validate their design decision-making. The authors’ look to address this through the study of design practitioners in ‘real-world’ FMCG design practice. A case study is presented with a UK company involved in the design and manufacture of food and beverage packaging for suppliers, retailers and brands in the UK FMCG market. The research aims to identify preliminary insights and a narrative into the factors affecting practitioner rationale, decision-making and explore future research. The study triangulates evidence from interviews, participant observation, direct observation and document analysis to identify influences through a convergence of findings. Nine preliminary influences are recognised that appear to affect practitioner rationale and decision-making.<br

Achieving information fulfilment in the networked society: part 1: introducing new concepts

Purpose – The purpose of this paper is to introduce the idea of information fulfilment. The networked society provides many opportunities for information flow. However, information professionals readily accept that, although one is surrounded by information of many sorts, in many formats, what is important is whether users consider that they ever achieve what is known as “Information Fulfilment”. i.e. occurrences when there has been information which is accurate, timely, current and presented in an appropriate and useful format to allow (work) tasks to be completed. Design/methodology/approach – This first paper contains a literature review which informed the study. The study (which will be reported in detail in a later paper) was interpretive and used ethnography (through participant observation) as the research tool. The research deals with issues surrounding organisation structures and examines levels of information fulfilment in micro substantive settings. Findings – The paper serves to introduce background and cultural information from a small section of a larger European research project which involved five countries and was partially funded by TEMPUS and Leonardo da Vinci Socrates grants. Research limitations/implications – The paper introduces ideas concerning information fulfilment and addresses initial issues concerning a small section of results from a larger project. Phase 2 is now under way and more studies are planned. It is noted that organisation structures are only one variable that affects levels of information fulfilment and there are plans in the future to further extend the study. Originality/value – The research attempts to link the levels of information fulfilment with types of organisation structures. This paper introduces the concept and gives the rationale for the project

Blurring Borders, Visualizing Connections: Aligning Information and Visual Literacy Learning Outcomes

Purpose – This paper seeks to offer a rationale and practical suggestions for the integration of visual literacy instruction and information literacy instruction practice and theory. Design/methodology/approach – The paper aligns visual literacy and information literacy competency standards, revealing connections and opportunities for practical integration during library instruction and traditional classroom instruction. Findings – On analysis of 11 visual literacy competencies, three exhibit a strong relationship with the ACRL\u27s Information Literacy Competency Standards. Practical implications – The paper provides guidelines for teaching and learning scenarios that may be used in a library instruction session or as part of a course curriculum. Originality/value – The paper advocates the alignment of visual literacy and information literacy competencies as a method for connecting multiple literacies in information literacy instruction

A voice-based annotation system for collaborative computer-aided design

In this paper, we describe a voice-based interaction mechanism to annotate 3D models directly from a computer-aided design (CAD) modeling environment. The audio signal is captured and automatically transcribed to a textual 3D note, which is attached to the geometry and made available to other product information and business processes across the enterprise via a product data management system. Our approach provides a more natural and intuitive method to capture design and engineering knowledge that is particularly effective when large amounts of information need to be communicated. We discuss the rationale of the software architecture and the value of this modality for capturing knowledge in a collaborative engineering context. Finally, we examine the results of an experiment to validate our proposal. Our results show that 3D annotations are an effective mechanism to communicate design knowledge, which suggests the need for further developments in the areas of multimodal interaction methods and interfaces for CAD and collaborative tools

The pricing puzzle : the default term structure of collateralised loan obligations

Ambivalence in the regulatory definition of capital adequacy for credit risk has recently stirred the financial services industry to collateral loan obligations (CLOs) as an important balance sheet management tool. CLOs represent a specialised form of Asset-Backed Securitisation (ABS), with investors acquiring a structured claim on the interest proceeds generated from a portfolio of bank loans in the form of tranches with different seniority. By way of modelling Merton-type risk-neutral asset returns of contingent claims on a multi-asset portfolio of corporate loans in a CLO transaction, we analyse the optimal design of loan securitisation from the perspective of credit risk in potential collateral default. We propose a pricing model that draws on a careful simulation of expected loan loss based on parametric bootstrapping through extreme value theory (EVT). The analysis illustrates the dichotomous effect of loss cascading, as the most junior tranche of CLO transactions exhibits a distinctly different default tolerance compared to the remaining tranches. By solving the puzzling question of properly pricing the risk premium for expected credit loss, we explain the rationale of first loss retention as credit risk cover on the basis of our simulation results for pricing purposes under the impact of asymmetric information. Klassifikation: C15, C22, D82, F34, G13, G18, G2