In this paper, we investigate the relationship between two elementary
operations on derivations in the framework of graph transformation based on
adhesive categories: moving a derivation along a derivation based on parallel
and sequential independence on one hand and restriction of a derivation with
respect to a monomorphism into the start object on the other hand. Intuitively,
a restriction clips off parts of the start object that are never matched by a
rule application throughout the derivation on the other hand. As main result,
it is shown that moving a derivation preserves its spine being the minimal
restriction.