Source : Webster's Revised Unabridged Dictionary (1913)

Planner \Plan"ner\, n.
   One who plans; a projector.

Source : WordNet®

planner
     n 1: a person who makes plans [syn: {contriver}, {deviser}]
     2: a notebook for recording appointments and things to be done,
        etc.

Source : Free On-Line Dictionary of Computing

PLANNER
     
        A language for writing {theorem prover}s by {Carl Hewitt}
         {MIT} 1967.  Never fully implemented.
     
        {CONNIVER} was an outgrowth of {PLANNER} and {microPLANNER} a
        subset.  {PLASMA} is a PLANNER-like system modelled on
        {Actors}.  See also {POPLER}, {QLISP}, {Scheme}.
     
        ["PLANNER: A Language for Proving Theorems in Robots", Carl
        Hewitt, Proc IJCAI-69, Wash DC, May 1969].