Section 26.2.1. Planning wording

Section 26.2.1. Planning wording includes the following

"In any case the hardware architecture must be the same — shipping from, say, a 32-bit to a 64-bit system will not
work."

would  be more correct if it read as follows

"In any case the CPU architecture must be the same — shipping from, say, a 32-bit to a 64-bit system will not work."

as “hardware architecture” would imply the difference between say Dell and IBM which should be ok if the CPU is the
samearchitecture ... 

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Regards
Theo Kramer