The parties to a contract have equal legal status, and one party may not impose its will on the other.
The parties have the right to voluntarily conclude a contract according to law, and no unit or individual may illegally interfere.
The parties shall follow the principle of fairness to determine the rights and obligations of all parties.
The parties shall follow the principle of good faith in exercising their rights and performing their obligations.
When concluding and performing a contract, the parties shall abide by laws and administrative regulations, respect social morality, and shall not disturb the social and economic order or harm the public interests.
Contract and agreement are the same concept, and agreement is just a conventional name.
Article 2 of the Contract Law defines a contract as an agreement between natural persons, legal persons and other organizations with equal subjects to establish, change and terminate the relationship of civil rights and obligations. It can be seen that a contract is an agreement with specific contents, which is used to stipulate the rights and obligations between the parties. An agreement with the above characteristics is a contract.
So your document about the designated training institution can be written as a contract or an agreement, which means the same thing.
A memorandum is a diplomatic document that explains the facts of a problem. Memos are written on plain paper, without official documents, signatures or seals. Memorandums can be submitted in person, sent as independent documents or attached to diplomatic notes. At present, the application scope of the memorandum is gradually expanding, and some international conferences regard the memorandum as an annex to the resolutions and communiqué of the conference.
Memo is also a kind of diplomatic letter, and its content is generally a detailed explanation of a specific issue and an argument or rebuttal based on it, so that the other party can remember or check it correctly.
In diplomatic talks, in order to make one side's oral statement clear and not cause misunderstanding, the written minutes handed to the other side face to face at the end of the talks are also a kind of memorandum.
The memorandum can be submitted in person during the talks between the two sides, can also be sent as an independent document to the countries concerned, and can also be attached to notes, bulletins, statements and other documents as supplementary documents.
A letter of intent is a public relations document that expresses and records some intention between departments or organizations within a social organization. It is a written document signed by both parties through preliminary consultation and reaching an agreement on their respective wishes. It is the basis of substantive negotiations between the two sides and the prelude to signing an agreement (contract).
A legally established contract is legally binding on the parties. The parties shall perform their obligations as agreed, and shall not alter or terminate the contract without authorization.
Contracts established according to law are protected by law.