ALE is a platform for creating decentralized services of project management based on blockchain. One of the main ALE features is to support multilateral smart contracts. With their help, especially due to the possibility to automatically administrate the relationship of the parties, the
trusted operating environment is guaranteed. Besides that, legal practice as any other practice which deals with the contract allows to amend any arrangements with new conditions during the process of work. Thanks to ALE, smart contracts can be supplemented by new terms until their execution, thus creating the “contract tree”, or the project structure by another name.