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As much as I know, GOeureka platform is a Technological innovation in Online Hotel booking industry. What is It's Technological overview?

I personally have done a lot of digging on GOeureka so I would like to answer this question. GOeureka aims to develop an easy to use, reliable Facility and Services booking system with persistent indisputable records. As with all new systems, much of what is proposed will evolve over time as requirements change.

The web platform will be developed with a backend built on the Python Django framework while individual components will be built using a mix of programming languages (HTML, CSS, Javascript, Golang, etc.) and the mobile application built on the Ionic framework. The database will be a PostgreSQL database that runs on a cloud server (Amazon Web Service) with certain data validated and stored on the Ethereum blockchain. Smart contracts will be ERC20 compliant (though newer standards may be applied after the time of writing) and customized using Solidity.

ERC20 smart contracts will be utilized for the security and immutability of data throughout the platform. To increase performance and keep transaction fees to a minimum, individual transactions and bookings will be kept outside of the blockchain. The settlement of all transactions will occur off-chain and fulfilled transactions will be aggregated each day and sent through the smart contract to be validated and stored on the blockchain.

It is a key goal that the GOeureka platform provides for widespread usage, therefore utmost priority will be given to platform performance, user interface and experience. Majority of the system will be built in off-chain components but critical information will be stored in persistent smart contracts. The critical factors addressed are: The design of a secure mobile wallet that the average user feels comfortable using and is recoverable by the same user in the event of a lost device. The GO credits which offer preferential rates when purchasing products and services. An exchange allowing the purchase of GO credits in exchange for GO tokens. etc.