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This paper aims to present a review of extant literature representing attempts to define perceived quality and to propose a new definition. Perceived quality (PQ) is a well-researched, yet vaguely defined subject. Despite a plethora of PQ definitions suggested by various scholars, there is no consensus among researchers on what it really is. The main purpose of this study is to offer a conceptualization of PQ that different researchers and practitioners would agree upon.

This study adopted Garvin's five approaches to defining quality as a frame of reference. The paper utilizes a continuum of approaches to underscore the fact that PQ is neither totally subjective nor wholly objective. After a comprehensive analysis of available conceptualizations, the paper then proposes a new definition that captures the intricate nature of PQ and aligns its various perspectives.

The paper proposes a new definition of PQ as an impression of quality. Such a conceptualization of PQ aligns the various researcher perspectives of it. It also highlights the fact that PQ relies on quality cues under conditions of limited product knowledge by the consumer, a situation known as information asymmetry.

The study contributes to the understanding of the elusive concept of PQ by suggesting a new definition of PQ.

Co-creation and co-invention are two diverse spheres in modern-day supply chains. Despite literature suggesting the existence of similar coherence between these concepts, the availability of published theory favoring these ideal lacks justification. This research aims to investigate the correlation and convergence of these well-known concepts to support a combined impact on research.

Comprehensive review of published literature using mathematical and statistical tools to measure inherent interrelationships and publication impacts in literature handling co-creation and co-invention.

An exploratory quantitative and qualitative analysis reveals the conundrums existing in distribution, keyword and adoption of research in the global and scientific community. The research favors a positive correlation existing between concepts such as co-ordination, collaboration, open-innovation, value creation with supply chain management and its development with rising importance of big data and block-chain technologies. Analysis reveals knowledge development with increased user-based interaction, better utilization of resources and enhanced productivity to support the mutual adaptation of co-creation and co-invention.

Outcomes will be a beacon for researchers to develop models and frameworks. Results derived will aid in improving customer participation, enhance decision making in product development, augment value creation and knowledge and resource sharing leading toward innovation.

Results will provide a detailed outline of the development and implementation of concepts in both developed and developing countries. Outcomes will also serve as a framework for marketing heads, graphic designers, website designers, supplier management and customer management in the service industry, production supervisors and customer management personnel in manufacturing industries.

As social networking is becoming more popular, social software has achieved an important position in the internet business industry. For social software to be successful, it is crucial to understand how users form their continuous usage intentions toward social software. This paper aims to discuss these issues.

Drawing upon socio-technical and social cognitive perspectives, this study proposes a theory-based model that investigates the interaction effects between social (i.e. perceived user base and relationship commitment) and technical (i.e. perceived system quality) factors of social software, in addition to their direct effects on continuous usage intentions. To empirically validate the proposed research model, a structural equation modelling technique was used.

The results of our model test indicate that all relevant social and technical factors are significant determinants of continuous usage intention. Moreover relationship commitment exhibits a positive interaction effect with perceived system quality on continuous usage intention, while perceived user base does not.

Service designers or providers of social software should make an effort to nurture social relationships among users, expand users' social networks, and reinforce users' relationship commitment to their friends.

Given the lack of investigations into socio-technical interactions in prior social software studies, the theoretical perspectives and empirical findings of this study are useful to both academics and practitioners. The findings also raise new implications regarding the various types of interactions (e.g. enhancing or suppressing) between the social and technical factors around social software.

This study aims to investigate the effects of moral hazard on quality and satisfaction of public–private–partnership (PPP) construction projects in Ghana.

After undertaking a literature review, questionnaires were used to elicit responses from respondents. Population consisted of quantity surveyors, project managers, procurement officers, consultants, public agency officers involved in PPP projects, private partners and contractors. A total of 211 questionnaires were received from 250 distributed. Purposive and snowballing sampling techniques were adopted. Analytical tools were Cronbach’s alpha for testing reliability, regression, mean score ranking and relative importance index.

Reduced mutual trust and respect, poor clarity of project objectives; consequence on decision-making; less effective construction process; and increased construction risks were the significant effects of moral hazard on satisfaction of PPP construction projects. Value-based effects; manufacturer-based effects; product-based effects; user-based effects; and transcendent-based effects were the significant effects of moral hazard on quality of PPP construction projects.

Construction stakeholders involved in delivering PPP projects ought to take note of the findings and recommendations arising. Further studies should explore the effects on other project performance indicators apart from satisfaction and quality.

This paper extends knowledge in the area of exploring the effects of moral hazard on PPP project satisfaction and quality. The findings are beneficial to both academia and industry practitioners.

This review aims to discuss the planning, implementation and evaluation of a 24‐session alcohol and drug group for eight service users, based on the Behavioural Treatment for Substance Abuse in Severe and Persistent Mental Illness Model (BTSAS), delivered by a group of multi‐disciplinary staff in a medium secure forensic setting.

Evaluation tools were completed pre‐ and post‐group to measure attendee outcomes and perceptions of their group experience.

The group programme was well received, although adaptations to meet specific medium‐secure needs will be required for future group work.

The development and implementation of the group has raised awareness within the medium‐secure setting, facilitating a less punitive and more collaborative response.

The paper highlights interventions to support the medium‐secure setting to develop a more pragmatic bespoke response to meet alcohol and drug needs.

Logistics service providers (LSPs) may invest a lot of time in tenders unsuccessfully, as they do not meet the expectations of logistics service users (LSUs). In order to help them classify and target their customers more efficiently and effectively and make logistics outsourcing more successful for both LSUs and LSPs, this paper analyzes underlying dimensions of criteria German manufacturing and trading companies actually use in selecting an LSP and clusters of LSUs based on these dimensions.

A questionnaire survey with 110 manufacturing and 135 trading companies was conducted in Germany. Principal component analysis (PCA), cluster analysis, multivariate analysis of variance, analysis of variance and discriminant analysis were performed on the sample data.

PCA revealed eight dimensions of LSU criteria in selecting LSPs and that cost alone seems not decisive. Based on these dimensions, cluster analysis produced nine LSU groups. These groups differ the most in the selection criteria dimensions cost-performance ratio, operational collaboration, quality and locations. Recommendations for servicing these groups are given. The two largest groups, which make up 43.5%, seem not that demanding and price sensitive. The selection criteria dimensions and LSU groups enable LSPs to classify and target their customers more efficiently and effectively, to evaluate and develop their core competencies, and contribute to successful logistics-outsourcing relationships.

This research is the first to examine selection criteria dimensions and resulting clusters of German manufacturing and trading companies in order to make logistics outsourcing more successful.

This paper aims to outline the development of research into the value of libraries over the past decade.

Recent studies using contingent valuation for the British Library, South Carolina Public Libraries, Florida Public Libraries and St Louis Public Libraries are summarised both in terms of methodology and findings. Studies into two national bibliographic services (Canada and New Zealand) are reviewed to demonstrate the application of value studies to specific services.

There are many questions that have yet to be answered through using this methodology. At the most basic level it is not yet clear whether any particular numerical result represents the best return on investment for an individual library. The lack of comparative of studies means that the appropriate level of return on investment than that which the taxpayer or investor should expect, has yet to be established.

There is a need for further research to identify the relative position in which libraries in the major sectors should expect to be found. More significantly, there is a need to consider how a value identified for current use of a service should be balanced against future use, and to establish how these two analyses might be combined.

Shows consistent use of contingent valuation and return on investment for libraries in public and national library sectors. Each study took considerable resources and man‐hours to establish a community/user based economic result.

The office is considered as a strategic resource that can support knowledge‐based organisations to gain competitive advantage and operational efficiency. Although the modern scholar emphasises the role of user involvement in workplace design and management, there is little evidence showing how it can be linked to occupancy cost performance. The purpose of this paper is to investigate benefits of a user‐centric workplace practice by focusing on working time and space utilisation practice of office users.

A scenario‐based approach was designed to analyse office occupancy cost performance. A questionnaire survey was conducted from a number of UK‐based offices to create three workspace utilisation scenarios, namely, existing, property‐centric and user‐centric. Key comparison criteria include potential areas of savings, potential total cost savings and cost saving per person.

It was found that a user‐centric approach reflects an opportunity to save annual occupancy costs in terms of total costs and cost per person where users indicated how they utilised working time and space. In return, the organisations can gain more productivity from office users who are likely to perform better when they can work in the preferred workplace practice.

By adopting this approach, organisations can understand the occupancy characteristics of the offices from multi perspectives, leading to better management in office premises.

This paper is concerned with the analysis of how to achieve higher office efficiency by focusing on office user's working time and space utilisation practice.

The purpose of this paper is to propose an approach to incorporate contextual information into collaborative filtering (CF) based on the restricted Boltzmann machine (RBM) and deep belief networks (DBNs). Traditionally, neither the RBM nor its derivative model has been applied to modeling contextual information. In this work, the authors analyze the RBM and explore how to utilize a user’s occupation information to enhance recommendation accuracy.

The proposed approach is based on the RBM. The authors employ user occupation information as a context to design a context-aware RBM and stack the context-aware RBM to construct DBNs for recommendations.

The experiments on the MovieLens data sets show that the user occupation-aware RBM outperforms other CF models, and combinations of different context-aware models by mutual information can obtain better accuracy. Moreover, the context-aware DBNs model is superior to baseline methods, indicating that deep networks have more qualifications for extracting preference features.

To improve recommendation accuracy through modeling contextual information, the authors propose context-aware CF approaches based on the RBM. Additionally, the authors attempt to introduce hybrid weights based on information entropy to combine context-aware models. Furthermore, the authors stack the RBM to construct a context-aware multilayer network model. The results of the experiments not only convey that the context-aware RBM has potential in terms of contextual information but also demonstrate that the combination method, the hybrid recommendation and the multilayer neural network extension have significant benefits for the recommendation quality.

This study surveyed users and librarians who have been transforming libraries into a complex cultural space by reflecting the trends of the times, investigated and analyzed various status of complex cultural spaces, including perceptional differences among different groups and made an attempt to present a direction for the diversification of library's role.

This study analyzes the difference between the level of importance and the level of satisfaction for the operational style and use of complex cultural spaces, current status and use of programs and services of libraries as well as the perceptual difference between librarians and users. In order to do so, opinions were collected from librarians who operate complex cultural spaces and users who use the spaces.

First, the study compared to see if there is a difference between the preferred complex cultural space of libraries and the type of complex cultural space actually provided by libraries. Libraries do not only have data spaces but also made education space, performance space, exhibition space, rest space, community space and experience space available for users. Users were found to more frequently use exhibition space, performance space, rest space and education space among other spaces whereas the utilization rate of community space and experience space was identified to be significantly low. Second, this study also compared to see if there is a difference between users' preference for the type of programs operated by library's complex cultural spaces and the actual programs offered. The comparison of perceived differences between librarians who are the operators of the programs and users who participate in the programs is to compare and improve the consistency of supply and demand. As a result, it was found that the supply and demand for educational programs were most consistent, which would lead to higher participation rate and enhanced operational performance and satisfaction with libraries. Lastly, investigations were carried out to see whether there is a difference in the levels of importance and satisfaction for the operation of complex cultural spaces and perceptional difference between libraries and users. Comprehensively analyzing the results, in the first quadrant of “Keep the Good Work,” librarians showed a higher level of perception compared to users. In particular, librarians were found to have a different perception towards programs (contents) compared to users. Based on such results, a systematic program must be considered when planning for library programs in order to increase uses' satisfaction. In addition, in the second quadrant of “Concentrate Here,” with a high importance and low satisfaction, users showed a high level of importance for programs (contents) whereas libraries identified accessibility as a more important factor, indicating a big perceptional difference between users and librarians.

This study examines the differences between the opinions of operators who create complex cultural spaces and operate programs in the spaces and the opinions of users who participate in the spaces and programs, and it was found that no other studies in Korea and overseas have done the same yet. In addition, it carries a significant meaning in that it does not only investigate the perceptions towards importance and satisfaction, but also suggests improvement directions based on the perceptional differences between users and librarians. In other words, librarians who implement policies at actual sites seem to be able to reflect the results of this study and decide the operation direction of the library.

Users also participate in various services and programs that library's complex cultural spaces offer and enjoy their cultural life. It carries a significant meaning in that the study evaluates the importance-satisfaction of factors affecting the use of complex cultural spaces of libraries by examining perceptions of those users who actually have the experience of using library's complex cultural spaces when the number of libraries attempting to transform into a multicultural space increases. The study made an attempt to enrich the knowledge and understanding of users' visit/use of libraries, suggest improvement directions and factors to focus. Continuous efforts and additional studies must be made in order to vitalize library's complex cultural spaces and secure the position of a cultural facility as well as a communication space located at the heart of regional society.