Special Topics in Computer Engineering. Assignment 2: Smrt contract application. Scope: The student should be able to build an application one of the following smart contracts. Requirements of the application: 1- Creating a smart contract that can perform one of the following tasks: a- Uni-Directional Payment Channel (the sender sends an ether amount to receiver, the receiver sends back a message indicating the received funds, other wise the transaction is reverted) b- Bidirectional payment, two participants can transfer funds. c- Students' grades management contracts, the student transfer fund to the grading contract to receive a report of his marks. d- Shipment tracking smart contract, the location of a shipment is reported in a message if the tracing contract is called from another contract. e- Voting system. 'Use the example presented in the class'. f- Messaging service based on smart contracts. 2- Maximum number of students in any project group is three students. 3- Contracts should be running on Remix EVM. And deployed. the students should provide a report that contains a link to the applied smart contract. Resources: Any used references should be clearly cited