The sampling procedure is stored in the inspection plan for the
inspection characteristic, or in the material for the inspection
type. The sampling procedure determines the plan when an inspection
lot is ready for processing. The system takes the current
quality level together with the stored
dynamic modification rule into consideration when it
determines the sampling plan. The quality level determines the
inspection stage or skip stage for subsequent
inspections, based on the inspection history. If the sampling
procedures are supported by sampling schemes,
inspection severities are assigned to the inspection
The standard system contains ready-to-use sampling schemes that
DIN ISO 2859-1 for counting inspections
DIN ISO 3951 for measuring inspections
The data from the DIN standards has been reproduced with the
permission of the "Deutsche Institut für Normung e.V." This data
corresponds to the current version of the ISO-DIN standards.
(<Date of current release>, SAP AG)
You may copy the sampling schemes from client 000 into the
current client and use them as a function of the R/3 System. SAP,
however, accepts no liability for the validity of the data.
The standards may have changed since the date of the current
release and errors may have occurred as a result of maintaining and
importing the data. For this reason, make sure the data is valid
before you use it productively!
The chapter Basic Settings and Environment / Tools /
units contains instructions on how you can transport
the sampling schemes contained in the standard client 000 to the
SAP uses the following nomenclature for the 'A'B'C' description
in the sampling schemes:
'A' (description of norm) : 1 = ISO 3951 / 2 =
'B' (description of method): 1 = s-Methode bzw.
If you have already maintained
sampling schemes with the same names, you must release these names
by copying the existing sampling schemes under other names.
Do not maintain the data until you have familiarized yourself
with the terms used in the above text.
Proceed in the sequence described below.
1. Develop a sampling concept
Decide on a basic approach; do you want to retain the procedures
used in your company or do you want re-evaluate the objectives of
the sampling procedures and possibly redefine them? You can
implement most of the common sampling procedures in the QM
component. With the support provided by the QM component, however,
you have additional options, especially for dynamic modification.
If you want to re-evaluate your philosophy with respect to the
sampling procedures, ask yourself the following questions:
a) What purpose should the sampling
b) Which sampling procedure (sampling
type and valuation mode) is best for this purpose?
c) Will control charts be displayed
or used for valuation purposes?
d) Are the sampling procedures
currently being used supported by sampling schemes?
e) Can the inspection scope be
optimized through dynamic modification?
2. Maintain the settings and master
data in the proper sequence:
c) Maintain the sampling schemes
(create master records).
Provided you want to use sampling schemes in the sampling
procedures that do not already exist in the standard system.
If you want to use inspection
severities other than the ones set in the standard
system, you must first define them.
d) Define the dynamic modification
rules (create master records).
e) Maintain the sampling procedures
(create master records).
f) Maintain the allowed combinations
of sampling procedures and dynamic modification rules.
When you maintain the sampling procedures and dynamic modification
rules, the system will prompt you to maintain these combinations.
You can ignore this initially. If you only need a few dynamic
modification rules, but many sampling procedures, it may be
convenient to maintain the dynamic modification rules first and
then assign these rules immediately when you maintain the sampling
You can implement the most common, internationally standardized
sampling systems (sampling types, valuation modes,
dynamic modification rules) in the QM component without having to
make any modifications. For example, this applies to:
ISO 3951, s-method
ISO 2859, part 1; valuation according to number of defects or
number of nonconforming units, but without multiple samples or
ISO 2859, part 3; skip lot with inspection frequencies that can
In the QM component, inspection levels are neither stored in
the sampling schemes nor in the sampling procedures. This means if
you want to work with several inspection levels, you must store
separate master records for the sampling scheme and sampling
procedure for each level.
In the QM component, the inspection stage and AQL are input
parameters for the sampling scheme. This means that you can
maintain the sampling plans for several inspection severities and
AQLs in one sampling scheme master record.
With the help of the two input parameters inspection severity
and AQL, the sampling procedure selects the appropriate sampling
plan from the sampling scheme based on the lot size. Depending on
whether or not dynamic modification is specified, the sampling
procedure proceeds differently:
If no dynamic modification of the inspection severity takes
place, the inspection severity and AQL are stored in the sampling
procedure. This means there is one sampling procedure master record
for each inspection severity and AQL.
If dynamic modification of the inspection severity takes place,
only the AQL is stored in the sampling procedure. The sampling
procedure takes the inspection severity specified in the current
quality level. You must maintain a sampling procedure master record
for each AQL.
The sampling procedure and the dynamic modification rule are
both contained in the inspection plan. To make sure the inspection
severities in the sampling scheme (which supports the sampling
procedure) fit the inspection severities in the dynamic
modification rule, you must define the
allowed combinations of sampling procedures and
dynamic modification rules.
You must decide which combinations of sampling procedures and
dynamic modification rules are compatible with each other and can
be used together in an inspection plan. This applies only to
sampling procedures with sampling schemes; sampling procedures
without sampling schemes can be combined with any dynamic
modification rules in the inspection plan.
The system allows you to assign a dynamic modification rule only if
all of the
inspection severities in the sampling scheme
(associated with the sampling procedure) have been maintained,
which have been assigned an
inspection stage in the dynamic modification rule.
This means: for the AQL defined in the sampling procedure, the
sampling scheme contains sampling plans for all inspection stages
supported by the dynamic modification rule. Skip stages are not
assigned an inspection severity.