While it is rare to see soft things in the multilateral field, transnational air agreements are in fact soft. At the time of a transaction, the parties have two options: an agreement or a memorandum of understanding. An agreement is certainly on the agreement between the legally competent parties, which is generally negotiated. On the other hand, the Memorandum of Understanding (Memorandum of Understanding) is a kind of agreement between the legally competent parties that is not binding. The MoC is a voluntary regional agreement that aims to reduce instability due to increased rotations of social workers and the costs associated with the employment of excessive numbers of temporary workers. The aim is also to strengthen cooperation to increase the supply of social workers for children. The memorandum also includes an agreement that the signatory authorities will not employ social workers as temporary workers if, within the last six months, they hold the status of an agent of another signatory authority. Workers can continue to move freely between direct employment and governments throughout the region. In the economy, a protocol is generally a legally non-binding agreement between two or more parties that defines the terms and modalities of mutual understanding or agreement and notes the requirements and responsibilities of each party – without concluding a formal and legally enforceable contract (although a MoU is often a first step towards the development of a formal contract).   A Memorandum of Understanding is called a written legal document outlining in full the principles of an agreement between the parties or more that form a bilateral or multilateral agreement, duly signed by the parties. Most businessmen, government authorities, legal entities and individuals often use these two entities in their daily lives to deal with another party in order to achieve a common goal. The parties must understand clearly that, if they want their decisions to be binding on each other, they can enter into an agreement that gives the parties their essential rights and can enforce them in court. If the parties do not want a legally binding person, they can engage in the MOU.
In the United Kingdom, the term MoU is often used to enter into an agreement between parties to The Crown.