Delivery Performance

Formula

If ( ( D e m a n d p , c + B a c k l o g p − 1 , c ) > 0 )

D P T V = D e l i v e r e d p , c + P r e d e l i v e r y p − 1 , c D e m a n d p , c + B a c k l o g p − 1 , c

Else

NULL

Demand:= customers wish c:= product identifier p:= Time period e.g. a day, a week, a month ...

The cumulation over a period and a group of product identifiers c is done as follows: D P p , c = ∑ p , c ( D P T V ) c o u n t p , c ( D P T V <> N U L L )

whereas p is determined by demand period

Singular case definition

To fit to the needs of the environment, the granularity of a singular case ( D P ∗ S ) has to be defined. In general a singular case is described by a n-Tuple consisting of a set of the following order and delivery details:

order number

customer identifier

product identifier

wish date of customer

confirmed date of supplier

ship to information

delivery date

delivery note number

Formula

D P D S

After a singular case has been delivered to the customer its DP is measured as follows:

arrival date = delivery date + transit time

By cumulating the results of singular cases over a certain period p and, if necessary, additional criteria c (e.g. customer, product, ...) the delivery performance is calculated as follows:

D P p , c = ∑ p , c ( D P ) c o u n t p , c ( s i n g u l a r c a s e s )

whereas p is determined by the arrival date

D P T S

After a period has elapsed all singular cases with wish date within period are considered and their DP is measured as follows:

arrival date = delivery date + transit time

By cumulating the results of singular cases over a certain period p and, if necessary, additional criteria c (e.g. customer, product, ...) the delivery performance is calculated as follows:

D P p , c = ∑ p , c ( D P ) c o u n t p , c ( s i n g u l a r c a s e s )

whereas p is determined by the first confirmed date

Result

0%≤ D P T / D S / V ≤100%