Abstract
The 5G core network adopts Network Functions Virtualization technology, which forms a variety of virtual resources for general computing, storage, and network hardware to achieve dynamic and ...flexible deployment of network functions and resources based on needs. With large-scale commercial deployment of cloud-native 5G core network with network function virtualization technology, the operation and maintenance of 5G core network is facing new challenges. This paper describes the architecture and deployment characteristics of 5G core network, and analyses the challenges brought to operation and maintenance by new network characteristics such as SBA, NFV, MEC and separated UPF, as well as the difficulties of operation and maintenance of virtual deployed 5G core network. Combined with the architecture evolution and function enhancement of 5G-Advanced, the architecture and scheme of A Novel Intelligent 5G-Advanced Core Network Operation and Maintenance System are proposed. The architecture and scheme of 5G core network operation and maintenance system construction were proposed, and suggestions on the organizational structure of 5G core network cloud-network integration operation and maintenance were put forward, so as to provide reference for 5G core network cloud-network integration operation and maintenance. The proposed scheme improves the performance of operation and maintenance of 5G core network significantly.
Research on open innovation suggests that companies benefit differentially from adopting open innovation strategies; however, it is unclear why this is so. One possible explanation is that companies' ...business models are not attuned to open strategies. Accordingly, we propose a contingency model of open business models by systematically linking open innovation strategies to core business model dimensions, notably the content, structure, and governance of transactions. We further illustrate a continuum of open innovativeness, differentiating between four types of open business models. We contribute to the open innovation literature by specifying the conditions under which business models are conducive to the success of open innovation strategies.
The widespread implementation and adoption of digital technologies by organizations has given rise to a massive transformation with the potential to affect many organizations’ internal operations and ...processes. This transformation affects different levels and steps of output creation in companies, which eventually triggers changes in their organizational structures. This article develops an integrated picture on how digital transformation affects organization design by classifying and analyzing the effect on the process of output creation in firms. Based on this picture, it develops and elaborates on potential opportunities and challenges for companies resulting from digital transformation. Finally, it offers recommendations and decisions rules for dealing with these issues.
As organizational environments become increasingly dynamic, complex, and competitive, leaders are likely to face intensified contradictory, or seemingly paradoxical, demands. We develop the construct ...of "paradoxical leader behavior" in people management, which refers to seemingly competing, yet interrelated, behaviors to meet structural and follower demands simultaneously and over time. In Study 1, we develop a measure of paradoxical leader behavior in people management using five samples from China. Confirmatory factor analyses support a multidimensional measure of paradoxical leader behavior with five dimensions: (1) combining self-centeredness with other-centeredness; (2) maintaining both distance and closeness; (3) treating subordinates uniformly, while allowing individualization; (4) enforcing work requirements, while allowing flexibility; and (5) maintaining decision control, while allowing autonomy. In Study 2, we examine the antecedents and consequences of paradoxical leader behavior in people management with a field sample of 76 supervisors and 516 subordinates from 6 firms. We find that the extent to which supervisors engage in holistic thinking and have integrative complexity is positively related to their paradoxical behavior in managing people, which, in turn, is associated with increased proficiency, adaptivity, and proactivity among subordinates.
We study the phenomenon of business ecosystems in which platform firms orchestrate the functioning of ecosystems by providing platforms and setting the rules for participation by complementor firms. ...We develop a theoretical framework to explain how the structural and evolutionary features of the ecosystem may shape the extent to which participating complementor firms can sustain their superior performance. The structural feature, which we refer to as ecosystem complexity, is a function of the number of unique components or subsystems that interact with the complementor’s product. We incorporate the evolutionary features by considering the role of generational transitions initiated by platform firms over time as well as the role of complementors’ ecosystem-specific experience. Evidence from Apple’s iOS and Google’s Android smartphone ecosystems supports our arguments that higher ecosystem complexity helps app developers sustain their superior performance, and that this effect is stronger for more experienced firms. In contrast, platform transitions initiated by Apple and Google make it more difficult for app developers to sustain their performance superiority, and that this effect is exacerbated by the extent of ecosystem complexity. The study offers a novel account of how the performance of complementor firms in platform-based business ecosystems may be shaped by their ecosystem-level interdependencies.
Interim payment provisions in construction projects are susceptible to unfair practices. In construction project participants with varying financial capacities belonging to different organizations ...are bound by contractual relationships. Due to this type of project organizational structure, project participants do not completely trust each other which prevents the adoption of existing centralized automated frameworks for interim payment. Therefore, this paper presents a distributed blockchain-based framework that does not require to be trusted for automatically enforcing the terms and conditions related to interim payments and sharing payment records at project-level transparently and securely. A logic to automatically initiate, validate, and disburse interim payments according to general contract conditions for interim payments is formalized in this paper. A blockchain-based data model that enables selective-transparency in payment records is proposed. This data model facilitates the sharing of sensitive financial information privately between two contracting parties and non-sensitive payment-related information publicly among all project participants. The proposed blockchain-based framework is supported by a key management strategy to facilitate different security properties such as confidentiality and authenticity of data and users. Considering the non-technical nature of construction project participants, the proposed key management strategy is designed to dynamically generate cryptographic keys from publicly sharable parameters so that storage and management overheads are reduced. Security properties such as immutability, data confidentiality, user integrity, performance, and cost of deployment of the proposed blockchain framework are validated and recommendations for executing the proposed framework with a high level of security are discussed in this paper.
•Automated and secure execution of interim payment via smart contracts is facilitated.•Data model for selectively-transparent recording of payments on blockchain is presented.•A blockchain-based key management strategy for data confidentiality in construction projects is presented.•Cost and security of the framework are evaluated and discussed.
Literature examining how knowledge management (KM) capability helps organizational structures cope with uncertainty is limited. Thus, this study builds and tests an integrated model to investigate ...the relationship among environmental uncertainty, KM capability, and organizational structure. Data from 161 firms were collected and analyzed. The results from structural equation model analysis support a mediating KM capability between environmental uncertainty and structural attributes. Environmental uncertainty tends to require firms to increase their KM capability, which in turn manifests itself in structural changes.
Si des cabinets comptables en SCOP (Sociétés Coopératives et Participatives, coopératives dont les membres sont les salariés) existent et ont fait l'objet de quelques études scientifiques comptables ...(Capron, 2000, 2001 ; Godowski et al., 2020), les analyses développées jusqu'alors ont davantage porté sur la caractérisation du service qu'ils délivrent aupres des comités sociaux et économiques et leur implication dans le dialogue social, que sur leur propre fonctionnement coopératif. D'autre part, si la littérature de ce champ donne a voir l'impact de la technologie comptable sur les organisations et les structures sociales, elle interroge peu la dynamique inverse, a savoir comment l'organisation qui fabrique la comptabilité peut porter et diffuser une technique comptable politique. Les comptables pourraient ainsi susciter un « rayon d'espoir » par la promotion de projets contre-hégémoniques, la création de nouvelles pratiques comptables ou encore l'utilisation de nouvelles idées et de nouveaux langages (Brown et al., 2015). Pour conclure, les apports, limites et voies de recherche sont mis en exergue. 1.Le cadre de la comptabilité dialogique pour analyser les pratiques organisationnelles des cabinets d'expertise comptable Il s'agit ici d'introduire le cadre de la comptabilité dialogique afin de comprendre les pratiques organisationnelles sur lesquelles elle s'appuie puis de passer en revue la littérature critique sur les pratiques organisationnelles des cabinets d'expertise comptable, imprégnées de culture capitaliste.
Networks involved in information processing often have their nodes arranged hierarchically, with the majority of connections occurring in adjacent levels. However, despite being an intuitively ...appealing concept, the hierarchical organization of large networks, such as those in the brain, is difficult to identify, especially in absence of additional information beyond that provided by the connectome. In this paper, we propose a framework to uncover the hierarchical structure of a given network, that identifies the nodes occupying each level as well as the sequential order of the levels. It involves optimizing a metric that we use to quantify the extent of hierarchy present in a network. Applying this measure to various brain networks, ranging from the nervous system of the nematode Caenorhabditis elegans to the human connectome, we unexpectedly find that they exhibit a common network architectural motif intertwining hierarchy and modularity. This suggests that brain networks may have evolved to simultaneously exploit the functional advantages of these two types of organizations, viz., relatively independent modules performing distributed processing in parallel and a hierarchical structure that allows sequential pooling of these multiple processing streams. An intriguing possibility is that this property we report may be common to information processing networks in general.
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