Sökning: "pos system"

Visar resultat 1 - 5 av 32 uppsatser innehållade orden pos system.

  1. 1. Consensus Algorithms in Blockchain : A survey to create decision trees for blockchain applications

    Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Xinlin Zhu; [2023]
    Nyckelord :Blockchain; Cryptocurrency; Consensus Algorithms; Proof of Work; Proof of Stake; Hybrid Consensus; Decision Tree; Blockchain; Kryptovaluta; Consensus Algoritms; Proof of Work; Proof of Stake; Hybrid Consensus; Decision Tree;

    Sammanfattning : Blockchain is a decentralized database that is distributed among a computer network. To enable a smooth decision making process without any authority, different blockchain applications use their own consensus algorithms. The problem is that for a new blockchain application, there is limited aid in deciding which algorithm it should implement. LÄS MER

  3. 2. Design suggestion for a Point of Sale system for the café industry

    Kandidat-uppsats, Linköpings universitet/Institutionen för datavetenskap

    Författare :Ottilia Lindblad; [2023]
    Nyckelord :interaction design; POS-system; usability;

    Sammanfattning : An order at a café involves mainly the customer, the café worker, and the cash register. Today, cash registers use a system called a Point of Sale (POS) system that manages the registration of an order as well as the payment. Because of this it is crucial for the tradition of “fika” in Sweden. LÄS MER

  4. 3. First cycle, 15 credits Machine Learning based Clustering of Bank Card Consumers : Identification of risk groups for fraud detection purposes

    Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Jacob Hernberg; Ali Cicek; [2022]
    Nyckelord :;

    Sammanfattning : To safeguard consumers, banks have developed machine learning based fraud detections systems which work to prevent fraudulent card transactions from occurring. The goal of this report is to improve these systems by trying to segment consumers into different risk groups. LÄS MER

  5. 4. A Comparative Study Of Proof of Stake Algorithms

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Antonio Saaranen; [2022]
    Nyckelord :Blockchain; consensus algorithms; cryptography; Proof of Stake; Technology and Engineering;

    Sammanfattning : Cryptocurrencies are growing at a rapid pace. It is well established that the mining operation fueling the cryptocurrency Bitcoin consumes a significant amount of energy. This study aims to determine if there is an alternative to the consensus model, maintaining security, integrity, and decentralization. LÄS MER

  7. 5. Privat-offentlig samverkan: en väg till utveckling av en långsiktig strategi för Sveriges försörjningsberedskap?

    Master-uppsats, Lunds universitet/Riskhantering (CI)

    Författare :Elin Axelsson; Siri Westermark; [2021]
    Nyckelord :Försörjningsberedskap; Privat-offentlig samverkan; POS; Security of supply; Public-private partnership; PPP; Technology and Engineering;

    Sammanfattning : During recent history, Sweden has experienced several resource-intensive crises. For example, the Västmanland wildfire in 2014 and latest the Covid-19 pandemic. During these crises, those who were managing the crisis incurred a shortage of supplies. LÄS MER