Liaisons are defined as

Multuple Cholce

$$ temporary work teams made up of individuals from several departments, brought together to solve a specific problem or perform a particular function.

continuing relationships between managers and employees of different departments that alert these individuals to the challenges faced by other departments within the organization.

Individuals who act informally as a bridge between their department and another department within the organization.

Individuals responsible for ensuring that departments within an organization coordinate their activities with each other$-$with little or no formal authority.