Scenario
You want to assign logistic elements to a new position.

By defining relationships between objects, you can create a hierarchy of objects that mirror your organizational structure. The various objects like organizational units, jobs, positions and persons are linked by relationships.

You can use links to map the relationships between the individual elements of your organizational structure. Since the nature of these relationships is different, different links are used to represent them.
The links used between the basic object types are set by the system as default and should not be changed.
Links between objects are usually reciprocal. For example, if a job describes a position, the position is described by the job.
You only have to create a link in one direction. The corresponding inverse link is then created automatically by the system.
A link can also be unilateral. The links to objects of an external object type (such as to a cost center in Controlling) are often only unilateral, that is, they only go in one direction.
The standard syntax used to identify a relationship is A/B 000. A/B refers to the two different sides of a relationship, which you create when you link two objects. The system calls these sides passive (A) and active (B). They form the reciprocal relationship, and are vital in holding the relationship together. The three-digit numerical code identifies the relationship. For example, you assign a position to an organizational unit to identify where the position is allocated. The system creates a relationship Infotype record between the organizational unit and the position. You can check the relationship in the Relationship Infotype screen in Detail Maintenance. This relationship is called 003. This means the position belongs to the organizational unit, which in turn incorporates the position. The organizational unit's relationship record is B 003 and the position's record is A 003.

You can use the organizational structure to dynamically map your enterprise structure - it automatically adapts to any changes to your company.
You can create an organizational structure for your entire company, for just part of your company, or for one department only.
The position of the individual organizational units in relation to one another is mapped in the organizational structure. To create an organizational structure, you first create and maintain organizational units and then link them to one another. The organizational unit is the basis for creating an organizational structure.
Staff assignments map the assignment of the positions to the organizational units and the link between a position and a person. You create staff assignments by creating positions (on the basis of jobs), assigning them to an organizational unit and assigning a position holder.