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The purpose of this review paper is to address the substantial challenges of the outdated exoskeletons used for rehabilitation and further study the current advancements in this field. The shortcomings and technological developments in sensing the input signals to enable the desired motions, actuation, control and training methods are explained for further improvements in exoskeleton research.

Search platforms such as Web of Science, IEEE, Scopus and PubMed were used to collect the literature. The total number of recent articles referred to in this review paper with relevant keywords is filtered to 143.

Exoskeletons are getting smarter often with the integration of various modern tools to enhance the effectiveness of rehabilitation. The recent applications of bio signal sensing for rehabilitation to perform user-desired actions promote the development of independent exoskeleton systems. The modern concepts of artificial intelligence and machine learning enable the implementation of brain–computer interfacing (BCI) and hybrid BCIs in exoskeletons. Likewise, novel actuation techniques are necessary to overcome the significant challenges seen in conventional exoskeletons, such as the high-power requirements, poor back drivability, bulkiness and low energy efficiency. Implementation of suitable controller algorithms facilitates the instantaneous correction of actuation signals for all joints to obtain the desired motion. Furthermore, applying the traditional rehabilitation training methods is monotonous and exhausting for the user and the trainer. The incorporation of games, virtual reality (VR) and augmented reality (AR) technologies in exoskeletons has made rehabilitation training far more effective in recent times. The combination of electroencephalogram and electromyography-based hybrid BCI is desirable for signal sensing and controlling the exoskeletons based on user intentions. The challenges faced with actuation can be resolved by developing advanced power sources with minimal size and weight, easy portability, lower cost and good energy storage capacity. Implementation of novel smart materials enables a colossal scope for actuation in future exoskeleton developments. Improved versions of sliding mode control reported in the literature are suitable for robust control of nonlinear exoskeleton models. Optimizing the controller parameters with the help of evolutionary algorithms is also an effective method for exoskeleton control. The experiments using VR/AR and games for rehabilitation training yielded promising results as the performance of patients improved substantially.

Robotic exoskeleton-based rehabilitation will help to reduce the fatigue of physiotherapists. Repeated and intention-based exercise will improve the recovery of the affected part at a faster pace. Improved rehabilitation training methods like VR/AR-based technologies help in motivating the subject.

The paper describes the recent methods for signal sensing, actuation, control and rehabilitation training approaches used in developing exoskeletons. All these areas are key elements in an exoskeleton where the review papers are published very limitedly. Therefore, this paper will stand as a guide for the researchers working in this domain.

This study examines the relationship between the use of management controls and the perception of meaningful work. Meaningful work is an important driver of individual performance of managers, and employees and can be enabled by sufficient use of management controls. The purpose of this paper is to address this issue.

Based on bibliometric analyses and a structured literature review of academic research studies from the organizational, management and accounting literature, the authors develop a conceptual model of the relationship between the use of management controls and the perception of meaningful work.

First, the authors propose that the use of formal management controls in a system (i.e. the levers of the control framework) is more powerful than using unrelated formal controls only. Second, they suggest that the interaction of a formal control system together with informal controls working as a control package can even stretch the perception of meaningful work. Third, they argue that the intensity of the control use matters to enhance the perception of meaningful work (inverted u-shaped relationship).

This study presents the first conceptual model of the relationship between the use of management controls and the perception of meaningful work. It provides valuable implications for practice and future research in the field of performance management.

The purpose of this paper is to identify the complementariness and tensions in the use of management control systems diagnostically and interactively, using a budgetary control example, drawing empirical evidence from a clustered firm, “Pattern On”, which is engaged in the manufacture of apparels.

This paper uses the qualitative methodology and case study approach. Face-to-face in-depth interviews were carried out as the main source of data collection, supplemented by an analysis of internal documents.

The field data from this study shows that both diagnostic and interactive controls appear in the clusters of PatternOn. However, the extent of use, the way they are perceived by employees, consequences, complementariness and tensions differ among the clusters. It further suggests that interactive and diagnostic controls have their own positive and negative implications on organisational activities. Therefore, rather than ruling one type as superior; what is best depends on the particular organisational circumstances.

This paper is a useful addition to the current body of management accounting literature, particularly to budgeting and to the levers of the control framework and highlights the use of a domain theory in a research study.

It provides insights to practitioners regarding the simultaneous use of controls, diagnostically and interactively, and how any resulting tensions are managed.

Using a budgetary control example, this paper shows how controls are used diagnostically and interactively while emphasising the complementariness and tensions created by such levers. This is important as most prior research has explored diagnostic and interactive use in isolation, while budgetary control, as well as the role of domain theory has not been their focus.

The purpose of this study is to present the evolution of thinking on the role of management control systems (MCSs) in innovation, according to the development of control practices, and to provide a reflection on the achievements of the more recent literature.

This paper assesses articles, books and book chapters that have explored MCSs in innovation, together with seminal works on management accounting and control.

Moving from the traditional phase where MCSs were seen as detrimental to innovation, the literature has now reached a new consensus that attributes a positive role to control. In this recent phase, it arises from the literature that MCSs in the realm of innovation should embrace a multiplicity of controls; MCSs depend on the magnitude and innovation mode of a company; MCSs evolve over time; and that synergies and tensions are expected to arise. Adding these factors to the inherent complexity of innovation, the assertion is that qualitative approaches should be undertaken to infuse the field with more fine-grained evidence. It is also proposed that this methodological approach be used to address the following points: (1) the use of multiple controls; (2) synergies and tensions; and (3) behavioural aspects of controls in relation with innovation.

The paper is of value for researchers who have an interest in studying the use of MCSs in innovation and in qualitative research and proposes some areas of research that could be explored.

This paper aims to advance understanding of the role of informal controls for governing day-to-day interactions in the execution phase of interfirm collaborations. It explores the nature of these informal controls and how they are used by the firm’s partners during this phase.

In-depth case study of a lateral relationship between a car manufacturer and its suppliers, based on interviews, observations and archival material, and using concepts from the field of psychology.

The results reveal an interfirm collaboration in which the supplier, in particular, relies on so-called informal interpersonal controls for micro-contracting and solving the control problems of its day-to-day interactions. Specifically, the study finds that the collaboration partners rely on interpersonal influence tactics for influencing behavior, coordinating the activities of the collaboration partners, and mitigating collaborative risks. Depending on the specific individual, in terms of, for example, their “mood”, and the contingencies of the explicit interaction, such as contradicting flanking contractual agreements, the actors engage in different activities, including ingratiation, pressure or rational persuasion.

This study illuminates the role of informal controls in interfirm settings by distinguishing analytically between interpersonal and interorganizational informal controls. By mobilizing the psychological concepts of interpersonal influence tactics, the extant research in this field is complemented through the illustration of how the actors use informal control mechanisms, depending on their corresponding counterpart, and the specific situation of the interaction. The findings thereby highlight the situated nature of governance, suggesting that governance between collaboration partners is not a static condition, rather an ongoing process in which the actors use, and alternate between, distinct tactics in their daily interactions.

The purpose of the study is to examine the use of management controls by a public partner to minimise risks associated with a public-private partnership (PPP) in a developing country.

Using case study method, management controls used in a power project formed as a PPP are examined based on data gathered from semi-structured interviews and documentary analysis.

The study reveals that the public partner of the PPP used multiple controls depending on the nature of risks in different phases of the project. While bureaucratic control was the predominantly used control pattern throughout the three phases (namely, selecting, building and operating) of the PPP, trust-based controls also played an important role. Market controls on the other hand played, somewhat, a nominal role, particularly in the selecting phase of the project. The study also highlights the problematic nature of forming PPPs in developing countries despite the various benefits associated with such organisational arrangements. Additionally, the study provides insights into how certain contextual features of developing countries affect the way in which controls are applied.

The insights provided in this paper would be beneficial to policy makers, in developing countries in particular, when making decisions in relation to implementation, management and risk control of PPPs.

This study makes an original contribution to the existing literature on PPPs by examining the way in which management controls are used to minimise risk in a PPP in a developing country.

Tremendous change has taken place in organisational structures, networks and strategy over the past 25 years. Yet, a strategic management framework developed 25 years ago has increased in popularity among researchers in the past decade. This paper aims to review how Simons’ Levers of Control (LOC) framework has been used in empirical research studies over the past 25 years.

The findings are based on electronic database searches of papers adopting Simons’ framework published in accounting and management journals.

A total of 45 empirical studies adopting the LOC framework are presented chronologically by research method. The review highlights the far greater use of the framework in qualitative compared to quantitative studies. Qualitative studies have extended the application of the framework to broader organisational issues such as sustainability, environmental accounting and inter-organisational controls. The quantitative studies have mainly sought to add to our understanding of the antecedents and outcomes of the use of interactive control systems.

This paper furthers our understanding of Simons’ framework by synthesising and analysing the literature over 25 years. It provides insight into the varying interpretations of the concepts underlying the framework in empirical studies including differences in operationalisation of the concepts in quantitative studies. In addition, it highlights the application of the framework beyond the original domain in which it was developed. Fruitful areas for future research are pointed to in the paper.

The purpose of this paper is to examine the association between Simons’ (2000) enabling (beliefs and interactive) use of controls with employee empowerment, and the subsequent influence on organisational performance.

A survey questionnaire was distributed to 636 Australian manufacturing organisations.

The findings indicate that the enabling use of controls is associated, both directly and indirectly, through the level of employee empowerment, with organisational performance.

This paper provides an initial empirical insight into the relationship between the use of controls with the level of employee empowerment. The findings highlight the significant interrelationship between the enabling use of controls and employee empowerment and the importance of both facets in enhancing organisational performance.

The purpose of this paper is to provide an empirical insight into the association between the leadership style of top management (using Stogdill and Coons’(1957) consideration and initiating leadership styles), the approach to using controls (using Simons’ (1995) interactive and diagnostic use of controls) and two organisational outcomes (business unit performance and employee organisational commitment (EOC)).

Data were collected through a survey of 120 middle-level managers of Australian service organisations.

The findings reveal that both the consideration and initiating leadership styles were associated with the diagnostic approach to using controls, while the initiating style was also associated with the interactive approach to using controls. In addition, the diagnostic approach to using controls was found to be associated with both organisational performance and EOC. The authors conclude that the diagnostic approach to using controls mediates the association between both the consideration and initiating styles of leadership with organisational performance and EOC.

The findings provide practitioners with an important initial insight into the role of leaders in enhancing the achievement of organisational outcomes. From a practical perspective, organisations should consider these findings when recruiting. Specifically, organisations should work towards ensuring that their top-level managers possess such personal leadership traits. This could be achieved either through installing appropriate recruitment procedures and/or through the implementation of management training programmes.

The study contributes to the literature by considering the interrelationship between two perspectives of the role of leaders, the leadership style and the use of controls

Examines the control mechanisms which superintendents used to shape and direct the work of suburban high school principals. Includes four hierarchical controls (supervision, input, behaviour and output) and two non‐hierarchical controls (section/socialization and environmental). Examines two additional areas, the social status of the school and the size of the district, for their effects on the application of the six control mechanisms. Finds the control mechanisms were used in all of the schools in varying degrees, but the extent of use across areas conveys how controls were “zoned” with tight controls (constraints) over some areas or loose controls (autonomy) over other areas. Concludes that district size does affect the variability of control and autonomy.