PuzzleTime – a mobile spare time organizer

Invoicing with blockchain

SA.D.PuzzleTime SA.D.InvoicingWithBlockchain
Everybody makes decisions every day concerning both important matters and just leisure. Puzzle Time is a test how sophisticated algorithms used in decision support systems (DCS) could assist you in planning your spare time. A selected set of approaches and algorithms were considered – fuzzy sets, rough sets and artificial intelligence to model the decision process. One of key requirements was to mimic human like decision making which might be slightly informal and not strictly based on exact and sharp criteria. A mobile application PuzzleTime implementing DCS algorithms was developed to assist you in selection a nice place to meet – not very far away, reasonably priced, e.g. a club or restaurant, offering fine food and good atmosphere e.g. live music or book shop part.

Title: Use of decision support systems for development of PuzzleTime – a mobile spare time organizer
Authors: A. Pawełek
Supervisor: M. Średniawa
Defended: October 2016

The current invoicing systems used by enterprises are prone to falsification and errors enabling tax evasion and fraud. It is enough to mention that the “VAT gap” (the VAT revenues expected vs. those actually paid) remains a looming issue for governments all over the world. New technologies like blockchain could significantly help to reduce VAT fraud by improving the tax collection systems. One of the potential benefits of the blockchain technology for tracking down tax evasion is that the electronic invoicing systems will make the invoice falsification almost impossible, thus improving the effectiveness of tax collection. The aim the thesis is to develop and implement a prototype solution for an electronic invoicing system based on the blockchain technology. The system should provide distributed but logically centralized e-invoicing registry for Poland. The system will allow the authorized users (companies) to issue e-invoices that will be automatically added to the registry thus eliminating the need for distributing double-copy paper versions of the invoices. Once validated and registered, the invoices can be used for automatic tax collection, payments, and other procedures.

Title: Electronic invoicing system using the blockchain technology
Author: Justyna Broniczewska
Supervisor: A. Bąk
Defended: work in progress