Business Node Research Articles

CBCS: A Scalable Consortium Blockchain Architecture Based on World State Collaborative Storage

In the big data environment, data are characterized by a large volume, various types, and rapid changes. The consortium blockchain applied in this environment faces the problem of excessive storage of the ledger, and the ledger handling different types of business needs to be isolated to ensure the ledger’s security. To this end, this paper proposes a scalable consortium blockchain architecture based on world state collaborative storage (CBCS). First, a business world state database update method is designed based on sparse Merkle multiproofs, where the collaborative storage of world state is realized under the premise of mutual isolation of the ledger between business domains. Then, a world state consistency verification method based on the rank B+ tree is designed to verify the consistency of the business world state in business domains by the checking sidechain, and a main-side chain cross-anchoring structure is designed to realize secure anchoring of the mainchain and the checking sidechain. Meanwhile, a blockchain transaction trusted tracing method based on two-level certification is developed to enable business nodes to obtain complete blockchain transactions. Finally, the feasibility and efficiency of the proposed mechanism to solve the storage scalability problem in the consortium blockchain are verified through experiments.

СИСТЕМАТИЗАЦІЯ ПІДХОДІВ ДО ІННОВАЦІЙНИХ ЗМІН У СТРУКТУРІ ПІДПРИЄМСТВА ПІД ЧАС РЕЛОКАЦІЇ

Political and economic disturbances in the world economy require new approaches to economic activity. The relocation of enterprises creates conditions for innovative transformation. Relocation takes place in conditions of total resource limitation and uncertainty of the external environment. The owner decides the feasibility of relocation, determination of the list of assets available and necessary for relocation, etc. He must choose the best methods and tools for optimizing business processes, form a list of assets to move and rank it. The purpose of the study is to identify business process optimization tools; conveying to entrepreneurs tools and methods for the restoration of relocated enterprises. The main methods of research are the methods of planning and organization of the experiment – in terms of determining the initial situation and input factors; methods of dynamic analysis (index method) – when choosing action algorithms; methods of conscious logic (method of elimination) – when processing the obtained results and determining the final result. The proposed system of actions of the entrepreneur regarding the optimization of business processes after relocation. Ascertain the expediency of using reengineering tools and a value approach to optimizing the structural changes of the enterprise. The importance rating of the enterprise's business nodes is formed on the basis of the value approach. The rating system of the enterprise's business nodes will allow managers to consciously make changes to the business model of their economic activity. The logic of organizing the business processes of an economic entity is radically changed as a result of the application of methods of chain transformations based on index methods and methods of conscious logic. The resulting ranking list of business nodes will help entrepreneurs to form effective business models for entering new business systems and effective functioning in them. Such tools and approaches should help enterprises actively recover after relocation in conditions of total restrictions on all groups of resources.

Agora covid idején : Agora Budapest – Agora Tower és Agora HUB irodaházak

Located at the intersection of the two main arterial roads in Pest, connecting to the Metro line and bus networks this development aims to repair a longstanding wound in the urban fabric. The Agora Hub function reinforces the concepts developed around transport and business nodes, instead of passing through this development people will consider interacting with the urban spaces created within. The Váci út business corridor has been a subject of debate for many years regarding the height and volume of commercial developments. This development by local measures towers above its neighbour's without being oppressive due to the careful handling of volumes and the spaces between.

Improving Margins of the Indonesian Seaweed Supply Chain Upstream Players: The application of the Kaizen Approach

The margin obtained at the upstream in the Indonesian commercial seaweed supply chain is generally small and makes the motivation for business development low. The research aimed to identify the opportunities to overcome these problems. The research conducted with the Kaizen analysis approach that seven upstream business nodes were chosen at three locations: two Gracilaria sp. farmers and one Gracilaria sp. trader in Brebes, one Eucheumatoid farmer and one intermediary trader in Serang, also two Eucheumatoid farmers in Sumenep. The results show some inefficiency in several loci in the business lines of intermediate farmers and traders. These include a gap on moisture content (Gracilaria of 2 % and Eucheumatoid of 4 %), productivity of Gracilaria pond 0.6 t ha–1 yr–1 and its by-product is 50 %, while the productivity of Eucheumatoids was 10 %. The quality of dry Gracilaria is one grade only. All result loss of potential margin. Root problem analysis found several external factors outside the Kaizen domain and other internal aspects can be corrected through intervention. The Kaizen analysis determined some simple interventions including improvement of cultivation embankments and extension of maintenance periods, use of monofilament net to dry seaweed, optimization of cultivation spacing, and use of moisture checker.

A Key Business Node Identification Model for Internet of Things Security

Based on the research of business continuity and information security of the Internet of Things (IoT), a key business node identification model for the Internet of Things security is proposed. First, the business nodes are obtained based on the business process, and the importance decision matrix of business nodes is constructed by quantifying the evaluation attributes of nodes. Second, the attribute weights are improved by the analytic hierarchy process (AHP) and entropy weighting method from subjective and objective dimensions to form the combination weight decision matrix, and the analytic hierarchy process and entropy weighting VIKOR (AE-VIKOR) method are used to calculate the business node importance coefficient to identify the key nodes. Finally, according to the NSL-KDD dataset, the network security events of IoT network intrusion detection based on machine learning are monitored purposefully, and after the information security event occurs in the smart mobile phone, which impacts through IoT on the business system, the impact of the key business node on business continuity is analyzed, and the business continuity risk value is calculated to evaluate the business risk to prove the effectiveness of the model. The experimental results of the civil aviation departure business show that the AE-VIKOR method can effectively identify key business node, and the impact of the key business node on business continuity is analyzed, which further proves the efficiency and accuracy of the model in identifying the key business node.

Accommodating business travellers: The organisation and spaces of serviced apartments in Cape Town, South Africa

Abstract In recent years several new forms of lodging have developed as alternatives to the hotel. For business travellers the serviced apartment has emerged as a new phenomenon. Within extant accommodation scholarship the service apartment sector has attracted minimal international attention either from tourism or property researchers. This paper analyses the development and character of service apartments in one of South Africa’s major business tourism destinations, the city of Cape Town. It is disclosed that serviced apartments are clustered around different business nodes in the city and spatially differentiated in terms of serving distinctive business traveller markets.

Applying real options to IT investment evaluation: The case of radio frequency identification (RFID) technology in the supply chain

Due to the high levels of flexibility and uncertainty associated with the deployment of RFID technology in the supply chain (e.g. alternative investment implementations based on the number of RFID-enabled processes or the different supply-chain nodes involved—e.g. stores, warehouses etc.), Real Options analysis becomes strongly suitable. In contrast to the few previous works that demonstrate the suitability of Real Options analysis for RFID investments through hypothetical numerical examples, this paper employs empirical data from a real case firm: 3E Coca-Cola HBC Greece. The proposed model for the case application addresses the simultaneous optimization of RFID investment timing and scale, in the face of (a) substantial uncertainty regarding the products circulated from and among the firm’s premises and (b) largely irreversible investment costs associated with RFID adoption (hardware infrastructure, tags, training and maintenance, etc.). A unique feature of our proposed modelling framework, with implications for a range of other supply chain information technologies with characteristics similar to RFID, is the explicit determination of the volatility of cash flows/revenues that will accrue from adopting the RFID technology from the volatility of RFID tagged items that are circulated from and among the business nodes. This alleviates the need to approximate or estimate the state-variable volatility (undeniably the most difficult parameter to infer in real options applications) through inaccurate or other questionable methods that have been employed in similar case studies in the literature.

Relationship Network Analysis of Manufacturing System Limited by Business Lines

It is a common problem of manufacturing enterprise limited by business line, which optimized its resources allocation to increase productivity, but now the researches are very weak in relationship mapping and network analysis method in the world. Aimed to the demands, proposed a resource allocation method limited by business line of manufacturing system based on the relational mapping of production system, manufacturing model of hierarchical network based on business line and node degree are been established. Defined the data structure of node on hierarchical network, simplified the network computing by dividing it to three parts - orders assignment, accomplish feedback and pure information exchange. Analyzed the distributing of network degree, established an equation of power law which has two limited parameters of node degree and side weight to automatic compute the amounts of resources of new order. Case study shows that the network analysis method limited business line proposed in the paper can give us an important reference frame of resources assignment. DOI: http://dx.doi.org/10.11591/telkomnika.v10i6.1415 Full Text: PDF

Property developers and the robust downtown: the case of four major Canadian downtowns

By and large, the downtowns of Canada's largest cities have remained important business nodes within their metropolitan regions, even though they have experienced some dimensions of decline. This fact can be ascribed to political, economic and social factors. The focus of this paper is on the property dimension: the structure of property ownership and the role of property developers. Large and powerful property developers and owners (property development firms, banks, life insurance companies and, more recently, pension funds) control a substantial stake in downtown top‐quality commercial properties. These agents attempt to reinforce the prominence of downtowns to keep the outstanding performance of their assets. Developers consider Canadian downtowns safe investment outlets in which they hold core assets. Through proactive measures they sustain the health of downtowns.