scholarly journals A use case centric survey of Blockchain: status quo and future directions

2019 ◽  
Author(s):  
Srinath Perera ◽  
Frank Leymann ◽  
Paul Fremantle
Keyword(s):  
Status Quo ◽  
Use Cases ◽  
Potential Outcomes ◽  
Use Case ◽  
Financial Systems ◽  
Future Directions ◽  
Digital Currency ◽  
Blockchain Technology ◽  
To Come ◽  
Level Of Effort

This paper presents an assessment of blockchain technology based on the Emerging Technology Analysis Canvas (ETAC) to evaluate the drivers and potential outcomes. The ETAC is a framework to critically analyze emerging technologies. The assessment finds that blockchain can fundamentally transform the world. It is ready for specific applications in use cases such as digital currency, lightweight financial systems, ledgers, provenance, and disintermediation. However, Blockchain faces significant technical gaps in other use cases and needs at least 5-10 years to come to full fruition in those spaces. Sustaining the current level of effort (e.g. startups, research) for this period of time may be challenging. We also find that the need and merits of decentralized infrastructures compared to centralized and semi-centralized alternatives is not always clear. Given the risk involved and significant potential returns, we recommend a cautiously optimistic approach to blockchain with the focus on concrete use cases. The primary contributions of this paper are a use case centric categorization of the blockchain, a detailed discussion on challenges faced by those categories, and an assessment of their future.

scholarly journals A use case centric survey of Blockchain: status quo and future directions

2019 ◽  
Author(s):  
Srinath Perera ◽  
Frank Leymann ◽  
Paul Fremantle
Keyword(s):  
Status Quo ◽  
Use Cases ◽  
Potential Outcomes ◽  
Use Case ◽  
Financial Systems ◽  
Future Directions ◽  
Digital Currency ◽  
Blockchain Technology ◽  
To Come ◽  
Level Of Effort

This paper presents an assessment of blockchain technology based on the Emerging Technology Analysis Canvas (ETAC) to evaluate the drivers and potential outcomes. The ETAC is a framework to critically analyze emerging technologies. The assessment finds that blockchain can fundamentally transform the world. It is ready for specific applications in use cases such as digital currency, lightweight financial systems, ledgers, provenance, and disintermediation. However, Blockchain faces significant technical gaps in other use cases and needs at least 5-10 years to come to full fruition in those spaces. Sustaining the current level of effort (e.g. startups, research) for this period of time may be challenging. We also find that the need and merits of decentralized infrastructures compared to centralized and semi-centralized alternatives is not always clear. Given the risk involved and significant potential returns, we recommend a cautiously optimistic approach to blockchain with the focus on concrete use cases. The primary contributions of this paper are a use case centric categorization of the blockchain, a detailed discussion on challenges faced by those categories, and an assessment of their future.

Understanding Blockchain

2021 ◽  
pp. 181-202
Author(s):  
Hemraj Saini ◽  
Geetanjali Rathee ◽  
Dinesh Kumar Saini
Keyword(s):  
Case Studies ◽  
Literature Survey ◽  
Use Cases ◽  
Security Framework ◽  
Future Directions ◽  
Blockchain Technology ◽  
New Ideas

In this chapter, the authors have detailed the need of blockchain technology along with its case studies in different domains. The literature survey is described that describes how blockchain technology is rising. Further, a number of domains where blockchain technology can be applied along with its case studies have been discussed. In addition, the authors have considered the various use cases with their recent issues and how these issues can be resolved using the blockchain technology by proposing some new ideas. A proposed security framework in certain applications using blockchain technology is presented. Finally, the chapter is concluded with future directions.

A Study of Use Cases for Smart Contracts Using Blockchain Technology

2021 ◽  
pp. 1823-1844
Author(s):  
S R Mani Sekhar ◽  
Siddesh G M ◽  
Swapnil Kalra ◽  
Shaswat Anand
Keyword(s):  
Natural Disaster ◽  
Vital Role ◽  
Use Cases ◽  
Use Case ◽  
Smart Contracts ◽  
Digital Identity ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Healthcare Finance ◽  
Natural Disaster Management

Blockchain technology is an emerging and rapidly growing technology in the current world scenario. It is a collection of records connected through cryptography. They play a vital role in smart contracts. Smart contracts are present in blockchains which are self-controlled and trustable. It can be integrated across various domains like healthcare, finance, self-sovereign identity, governance, logistics management and home care, etc. The purpose of this article is to analyze the various use cases of smart contracts in different domains and come up with a model which may be used in the future. Subsequently, a detailed description of a smart contract and blockchain is provided. Next, different case-studies related to five different domains is discussed with the help of use case diagrams. Finally, a solution for natural disaster management has been proposed by integrating smart contract, digital identity, policies and blockchain technologies, which can be used effectively for providing relief to victims during times of natural disaster.

scholarly journals Vote Validation using Blockchain Technology: A Conceptual Use Case

2020 ◽  
Vol 4 (4) ◽  
Author(s):  
Frankline Makokha
Keyword(s):  
Peer To Peer ◽  
Use Cases ◽  
Use Case ◽  
Central Authority ◽  
Distributed Consensus ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Computing Technologies ◽  
Main Component ◽  
Clear Description

Blockchain Technology is one of the computing technologies touted to likely bring about disruption in ways people conduct their transactions. By design, blockchains are decentralized, peer to peer, distributed consensus, and have anonymity property thus eliminating the need for a central Authority. Blockchain has been widely used in crypto currencies, with other uses lip frogging at slower paces.  This paper explores the various uses cases that have been advanced for blockchain highlighting the shortcomings of the listed cases. The paper expounds more on usage of blockchain in electoral processes, analyzing existing voting use cases and identifying the shortcomings of the listed blockchain voting use cases. A more elaborate voting use case is conceptualized with clear description on how to generate Digital Votes, linked to a NONCE and previous Digital Votes. The process of vote validation is explained with the main component of the blockchain voting being highlighted as the Smart Contract.

Developing a framework for considering blockchain pilots in the supply chain – lessons from early industry adopters

2019 ◽  
Vol 25 (1) ◽  
pp. 115-121 ◽  
Author(s):  
Remko van Hoek
Keyword(s):  
Supply Chain ◽  
Case Studies ◽  
Empirical Research ◽  
Lessons Learned ◽  
Use Cases ◽  
Use Case ◽  
Content Type ◽  
Early Adopters ◽  
Design Considerations ◽  
Blockchain Technology

Purpose There is a lot of interest in blockchain technology in the supply chain, but to date, there is little empirical research to support managerial decision-making. Verhoeven et al. (2018) suggested five screens for ensuring mindful development of use cases for blockchain in the supply chain. This paper aims to extend the Verhoeven et al.’s (2018) framework and empirical research beyond the use case stage into the pilot stage. Design/methodology/approach Three case studies in different industries (logistics services, consumer products and retail), supply chain positions (manufacturer, carrier, and retailer) and geographies (Europe and USA) are conducted to explore lessons learned by early adopters of blockchain technology in the supply chain. Findings The case studies indicate that the Verhoeven et al.’s (2018) screens, with one added screen, are helpful in considering “what to adopt.” Based on the insights from the case studies, it is also possible to develop pilot design considerations that can inform “where to start.” Lessons learned include that there is value in scoping pilots in a targeted manner, including the use of existing technology in the pilot (as opposed to replacing existing technology) and that there is the ability to start a pilot fast, provided the existence of executive and stakeholder engagement. Practical implications In addition to the need to be being mindful in considering what use case for blockchain in the supply chain to potentially adopt, mindful consideration of blockchain technology in the supply chain extends into the design of pilots. Six specific design considerations are offered. Originality/value Based on the insights from early adopters in industry, the author extends guidance for the mindful adoption of blockchain in the supply chain beyond the development of use cases, into the design of actual pilots. These insights directly address calls for research from literature (including from Dobrovnik et al., 2018 and Ferdows, 2018).

Blockchain Risk and Uncertainty in Automated Applications

2021 ◽  
pp. 64-86
Author(s):  
Devesh Kumar Srivastava ◽  
Saksham Birendra Bhatt ◽  
Divyangana
Keyword(s):  
Financial Services ◽  
Use Cases ◽  
P2p Network ◽  
Reputation Systems ◽  
Smart Contracts ◽  
Automated Systems ◽  
Risk And Uncertainty ◽  
Security Services ◽  
Digital Currency ◽  
Blockchain Technology

Blockchain could be called a string of blocks that acts like a ledger that is also distributed. Members in a defined P2P network are given access to the blockchain and can create new blocks. When the data is stored in a blockchain, changing it becomes virtually impossible. The data stored within blocks is timestamped to avoid tampering. Blockchain has applications in numerous fields like IoT, digital currency, financial services, reputation systems, smart contracts, security services, etc. If any virtual or real asset transaction is happening online, blockchain technology can be easily applied to optimize and secure the transaction better. Blockchain-based applications bring controversies, and yet many exceptional and diverse use-cases have been found for blockchain in both financial and non-financial sectors. Although it holds immense promise, it doesn't come without risks and uncertainties. This chapter elucidates the growing risks and uncertainties which accompany the use of blockchain in automated systems.

A Study of Use Cases for Smart Contracts Using Blockchain Technology

2019 ◽  
Vol 10 (2) ◽  
pp. 15-34 ◽  
Author(s):  
S R Mani Sekhar ◽  
Siddesh G M ◽  
Swapnil Kalra ◽  
Shaswat Anand
Keyword(s):  
Natural Disaster ◽  
Disaster Management ◽  
Vital Role ◽  
Use Cases ◽  
Use Case ◽  
Smart Contracts ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Healthcare Finance ◽  
Natural Disaster Management

Blockchain technology is an emerging and rapidly growing technology in the current world scenario. It is a collection of records connected through cryptography. They play a vital role in smart contracts. Smart contracts are present in blockchains which are self-controlled and trustable. It can be integrated across various domains like healthcare, finance, self-sovereign identity, governance, logistics management and home care, etc. The purpose of this article is to analyze the various use cases of smart contracts in different domains and come up with a model which may be used in the future. Subsequently, a detailed description of a smart contract and blockchain is provided. Next, different case-studies related to five different domains is discussed with the help of use case diagrams. Finally, a solution for natural disaster management has been proposed by integrating smart contract, digital identity, policies and blockchain technologies, which can be used effectively for providing relief to victims during times of natural disaster.

Use Cases and Applications of Blockchain Technology in IT Industry

2019 ◽  
Vol 7 (4) ◽  
pp. 716-720
Author(s):  
Deepak Kumar Verma ◽  
Varsha Katheria ◽  
Mazhar Khaliq
Keyword(s):  
Use Cases ◽  
It Industry ◽  
Blockchain Technology

scholarly journals Using Actors and Use Cases for Software Size Estimation

Electronics ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 592
Author(s):  
Radek Silhavy ◽  
Petr Silhavy ◽  
Zdenka Prokopova
Keyword(s):  
Project Planning ◽  
Use Cases ◽  
New Method ◽  
Software Systems ◽  
Software Project ◽  
Use Case ◽  
Size Estimation ◽  
Software Size Estimation ◽  
Use Case Points

Software size estimation represents a complex task, which is based on data analysis or on an algorithmic estimation approach. Software size estimation is a nontrivial task, which is important for software project planning and management. In this paper, a new method called Actors and Use Cases Size Estimation is proposed. The new method is based on the number of actors and use cases only. The method is based on stepwise regression and led to a very significant reduction in errors when estimating the size of software systems compared to Use Case Points-based methods. The proposed method is independent of Use Case Points, which allows the elimination of the effect of the inaccurate determination of Use Case Points components, because such components are not used in the proposed method.

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