What does "The arrangement commended itself to his judgment as simple and effective." mean?
The end upon which the civilian stood almost, but not quite, reached a fourth. This plank had been held in place by the weight of the captain; it was now held by that of the sergeant. At a signal from the former the latter would step aside, the plank would tilt and the condemned man go down between two ties. "The arrangement commended itself to his judgment as simple and effective." His face had not been covered nor his eyes bandaged. He looked a moment at his "unsteadfast footing," then let his gaze wander to the swirling water of the stream racing madly beneath his feet. A piece of dancing driftwood caught his attention and his eyes followed it down the current. How slowly it appeared to move, What a sluggish stream!
I don't know the meaning of the sentence "The arrangement commended itself to his judgment as simple and effective.""
What does the sentence mean? Please..