DLT

1.0 Einführung und Ziele

Star Notary Service erlaubt es, Sterne mit Koordinaten in der Ethereum Blockchain zu speichern. Diese Applikation ist eine Demoanwendung, welche die Funktionsweise einer DApp demonstriert. Es wird die Funktionsweise von Solidity und Interaktion mit Javascript vorgestellt.

1.1 Aufgabenstellung

Die Anwendung implementiert den Ethereum ERC-721 Token Standard als Solidity Smart Contract. Der Webfrontend nutzt Javascript. Die Anwendung speichert den Start Name, eine Beschreibung und die Koordinaten (RA Rektaszension, mag Absolutwert, cen Zentaur).

Ethereum Dapp example.

It illustrates the supply chain from the farmer to the customer as a smart contract.

Business Story

The organic farmer Bob produces exclusive rapeseed oils. Bob presses the oils in a nearby rapeseed mill. Afterward, he sells the oils at the farm shop. The oil is bottling in one-liter bottles, and each bottle has a unique identity code. Farming and the Harvest store (selling) are separate concerns. When Bob plans to produce oil, he harvests one or more fields and transports the seed to the mill. The mill pressed and bottled the oil. Bob will do all administrative stuff for the mill. This example shows the possibilities of tracking of products like wine, beer, bread, or products in chemical or pharmaceutical industries. It tracks the products from the field to the customer. The example has one primary essence and two production steps.

Why a Blockchain?

Many people ask it, some Experts see it as the new golden hammer for all database tasks. Blockchain is a synonym of Distributed Ledger Technology (DLT). A DLT-System has three main components, the Ledger (Blockchain, technical a chained list), consensus algorithms, and distribution. Distribution makes it safe against manipulation; every participation holds one copy of the ledger.

Welcome …

I am Stefan Zils: Software Engineer, Software Architect, Consultant, Requirements Engineer … Founder ino[a*]tec, my specialization is enterprise applications and system integration.

I combine computer science with business administration. My focus is on Distributed Ledger Technology (DLT), also called blockchain technology and agile working methods. Agile working methods have proven to be very useful in fast-changing business areas. One of the biggest problems in the realization of software projects is silo thinking between different departments. One goal as a management consultant is to overcome this.