Siemens SIMATIC PCS 7 Configuration Manual page 16

Preparation and administration
4.2 Preparatory planning
Specifications / guidelines
The following figure shows the specifications/guidelines that are meaningful at the start of a
project:
The documents build on each other and become increasingly more detailed in accordance
with the V model of the GAMP5 approach. However, it is not only creation of the PCS 7 solution
that is defined and regulated with these guidelines. They also form a very good basis for all
future work on a PCS 7 plant and provide consistent quality over the plant's entire lifecycle.
The following specifications must be observed:
● User Requirement Specification (URS)
● Functional Specification (FS)
● Design Specification (DS)
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Development Life Cycle
Design
Implementation & Test
Commissioning
Compendium Part A - Configuration Guidelines (V8.2)
Configuration Manual, 08/2016, A5E38166869-AA