QOS - bandwidth, shape, police

I am starting to confuse myself on when to use bandwidth, police or shape.

Based on question wording who do you know what they are asking you to do?

Am I right here?
Bandwidth = guaranteed bandwidth
Police = maximum bandwidth
Shape = limit bandwidth

R411(config-pmap)#class thisisgoingtodrivemetodrink
R411(config-pmap-c)#?
QoS policy-map class configuration commands:
  bandwidth Bandwidth
  compression Activate Compression
  drop Drop all packets
  exit Exit from QoS class action configuration mode
  netflow-sampler NetFlow action
  no Negate or set default values of a command
  police Police
  priority Strict Scheduling Priority for this Class
  queue-limit Queue Max Threshold for Tail Drop
  random-detect Enable Random Early Detection as drop policy
  service-policy Configure Flow Next
  set Set QoS values
  shape Traffic Shaping

R411(config-pmap-c)#bandwidth ?
  <8-2000000> Kilo Bits per second
  percent % of total Bandwidth
  remaining % of the remaining bandwidth

R411(config-pmap-c)#police ?
  <8000-2000000000> Bits per second
  cir Committed information rate
  rate Specify police rate

R411(config-pmap-c)#shape ?
  adaptive Enable Traffic Shaping adaptation to BECN
  average configure token bucket: CIR (bps) [Bc (bits) [Be (bits)]],
                  send out Bc only per interval
  fecn-adapt Enable Traffic Shaping reflection of FECN as BECN
  fr-voice-adapt Enable rate adjustment depending on voice presence
  max-buffers Set Maximum Buffer Limit
  peak configure token bucket: CIR (bps) [Bc (bits) [Be (bits)]],
                  send out Bc+Be per interval

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