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SIPOC
SIPOC stands for the sequence across a process of:
- Supplier, who provides...
- Inputs, which are used in the...
- Process, that converts the inputs into...
- Outputs, which are delivered to the...
- Customer.
Several additional critical items are not included in this simple model:
- Non-consumed resources or mechanisms used in the process,
such as people and machines.
- Controls and constraints that shape and limit what the process
can and must do.
- Outcomes, which are the results of the customer receiving the
outputs, and
- Benefits or Value that the customer gains (they may also
receive disbenefits and negative value).
Implications of this model include:
- Suppliers should be selected carefully and included in communications,
plans and quality assurance.
- Inputs need to be carefully specified and then verified against the
specification. If the supplier can be trusted, then verification can be
reduced.
- The process should be capable of producing the outputs within the given
constraints and with available resources.
- Outcomes, customers and benefits are sometimes forgotten when people
think the process ends with delivering the outputs.
SIPOC is sometimes reversed as COPIS, to highlight the priority of customers
and indicate a 'pull' system.
See also:
Process,
Process Capability
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