ECSS-E-ST-70-32C – Test and operations procedure language (31 July 2008)

This Standard cancels and replaces ECSS-E-70-32A (24 April 2006).



This Standard specifies:

  • The capabilities of the language used for the definition of procedures for space system testing and operations.
  • The PLUTO language.


Clause 4 defines the context in which procedures operate.
Clause 5 contains the requirements for the procedure language.


Annex A specifies the PLUTO language. This includes:

  • The “building blocks” that constitute procedures and the role that each of these building blocks plays in achieving the overall objectives of the procedure.
  • The dynamic aspects of procedures i.e. the execution logic of each building block and execution relationships between these blocks.
  • The syntax and semantics of the language itself.


Annex B specifies the engineering units to be supported by the procedure language.
Annex C specifies the mathematical, time and string functions to be supported by the procedure language.

This standard may be tailored for the specific characteristics and constraints of a space project in conformance with ECSS-S-ST-00.



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