Allocation systems are methods used to distribute resources, goods, or services among various users or groups. These systems can be applied in different contexts, such as economics, healthcare, or computer networks, to ensure that available resources are used efficiently and fairly. In an allocation system, decisions are made based on specific criteria, such as need, demand, or priority. For example, in healthcare, an allocation system might prioritize patients based on the severity of their conditions. This helps to optimize resource use and improve overall outcomes for the population served.