Type III Relationship:

In this type of relationship, a bottleneck and other non-bottleneck resources feed parts to an assembly operation (which is a non-bottleneck).

Legend

         B   Bottleneck resource, having slower processing rate, b

         N   Non bottleneck resource having faster processing rate; n (note, b < n)

         A   Assembly station (which is a non-bottleneck operation) and thus has rate, faster than b

          Material flow

Figure: Type III Relationship

For this relationship, the difference among non-bottleneck and bottleneck resource is the inventory pile-up rate. The assembly resource (A) is also under-utilized, as its capacity is more than that of bottleneck resource.