Q vs Await Node

1
Q vs Await Node

• Q is a simplified Await node
• Q activity is the resource ie server, inspection
• Await Node can specify resource that is needed by
  activity ie tools, parts, materials, etc

2
Quiz

• Hand draw tonight.Turn next week a printed
  version sing AweSim software, a single server
  operation of a 7-11 store using AweSim objects,
  customers arrive at the counter that is
  Exponentially distributed with a mean of 4.5
  minutes, the duration of the service time is
  normally distributed with a mean of 3.2 minutes
  and a standard deviation of 0.6 minutes, end the
  simulation after 1000 customers.

3

• AweSim software, a single server operation of a
  7-11 store using AweSim objects, customers arrive
  at the counter that is Exponentially distributed
  with a mean of 4.5 minutes, the duration of the
  service time is normally distributed with a mean
  of 3.2 minutes and a standard deviation of 0.6
  minutes, end the simulation after 1000 customers.
  

4
ExercisesDue Monday 10/29

• 6-9 Machine tool processes 2 diff parts. T1
  arrival time is tri dis 20-30-50. Interarrival
  time of T2 tri dis 35-50-60. Processing time for
  T1 is exp, m20, T2 uniform min 15- max 20.
  Processing includes inspection, 1 fail, return
  to que the rework time 90 of original. Find
  time in system of part utilization of machine.
  Use create/ await/ a conditional split of
  activities/ free/ collect/ terminate.

5

• Machine tool processes 2 diff parts. T1 arrival
  time is tri dis 20-30-50. Interarrival time of T2
  tri dis 35-50-60. Processing time for T1 is exp,
  m20, T2 uniform min 15- max 20. Processing
  includes inspection, 1 fail, return to que the
  rework time 90 of original. Find time in
  system of part utilization of machine. Use
  create/ await/ a conditional split of activities/
  free/ collect/ terminate.

6
Series/ parallel process example

• Build picture frames. 4 activities cut mtl, glue
  frames, sand, finish. How long will it take to
  build each frame? Show in histogram for case1
  2.
• Case one all series activity 1 is unifm dist 1
  to 2mins, act 2 is constant 24 hrs, act 3 unifm
  dist 5-10 mins, act 4 is uniform 2-3 hr
• case two activity 1 is unifm dist 1 to 2mins,
  act 2A is unifrm 1-1.5 hrs, act 2B constant 23
  hrs (5 glue sta) , act 3 unifm dist 5-10 mins,
  act 4 is uniform 2-3 hr

7
Bank example

• 2 inside tellers 2 drive up tellers, time bwtn
  arrivals of outside tellers is is expon dist
  m.75mins. Limited waiting space for drive up one
  is 3 cars and drive up 2 4 cars. Service time
  drive up one is norm dist 5 mins, dev 1 min,
  2nd drive up service time is uniform btwn 4 5
  mins. If car arrives at drive up and line is
  full, the customer will go inside. Other walk in
  customers arrive at a rate of expon .8 mins.
  They join a single Q and service time for both
  inside is triangular 2,3,5 dist., this line will
  only hold 7.

8

• 2 inside tellers 2 drive up tellers, time bwtn
  arrivals of outside tellers is is expon dist
  m.75mins. Limited waiting space for drive up one
  is 3 cars and drive up 2 4 cars. Service time
  drive up one is norm dist 5 mins, dev 1 min,
  2nd drive up service time is uniform btwn 4 5
  mins. If car arrives at drive up and line is
  full, the customer will go inside. Other walk in
  customers arrive at a rate of expon .8 mins.
  They join a single Q and service time for both
  inside is triangular 2,3,5 dist., this line will
  only hold 7.