Introduction to Value Stream Mapping

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Introduction to Value Stream Mapping
Amy Hodgkinson National Improvement Lead -
Diagnostics
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Agenda

• What is value stream mapping
• Why use value stream mapping
• How to create a value stream map
• From process maps to value stream maps

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What is value stream mapping?

• Visual representation of processes within a
  pathway
• Allows you to see all the value-add and
  non-value-add (waste) activities
• Opportunity to remove non-value-add steps and
  eliminate waste through problem solving
• Move towards a future state

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Why use value stream mapping?

• Reduce and eliminate waste to
• Improve safety and quality
• Improve turnaround time
• Increase capacity
• Reduce staff frustrations

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How to create a value stream map

• Keep it high level - use approximately 6-8
  process steps
• Focus on the high volume work i.e. 80 of the
  work. This is called the Green Stream.
• Collect true and accurate information by walking
  through the pathway yourself

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STEP 1
Patient Referred
Patient Discharged
Establish process START and STOP points
START
STOP
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STEP 2
Assessment
Treatment
Rehab / Therapy
Follow Up
Patient Referred
Patient Discharged
START
STOP
Insert the key process steps Use approx 6-8
boxes Start from the end of the process and work
backwards
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STEP 3
Assessment
Treatment
Rehab / Therapy
Follow Up
Patient Referred
Patient Discharged
START
STOP
Add in the outside agencies - Customers, other
key processes, other agencies
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STEP 4
symbol for electronic link
symbol for paper data flow
Assessment
Treatment
Rehab / Therapy
Patient Referred
Patient Discharged
START
STOP
Add in the data flows electronic and paper
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STEP 5
Assessment
Rehab / Therapy
Patient Referred
Treatment
START
Insert arrows between the boxes to show how the
information / items are flowing. Is it a push
or is it a pull?
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STEP 6
Assessment
Cycle time How many seconds/mins/hours does it
take to process ONE item?
Patient Referred
START
Batch Size What is the size of each batch that
is handled in this stage of the process?
Cycle time
Batch Size
Defects
Trigger
Defects What percentage is not right first time
and requires further work?
Insert the measurements - Gather real data to
really understand what is happening
Trigger What causes the process to start? i.e.
what triggers staff to start processing
referrals?
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STEP 7
Assessment
Treatment
Rehab / Therapy
Patient Referred
Add the length of time spent on the process
this is the same figure as the cycle time in your
data box
START
Add a triangle with a W to indicate a wait
Cycle time
Batch Size
Defects
Trigger
Add the time delay which occurs between the
process steps
W
W
60mins
90mins
1min
2mins
40mins
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STEP 8
i
i
Rehab / Therapy
Assessment
Treatment
98
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Patient Referred
START
Insert the inventory between the steps how much
is waiting between the stages? This can be
patients, referral cards, reports
Cycle time
Batch Size
Defects
Trigger
1min
2mins
40mins
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STEP 9
people
Assessment
Treatment
Rehab / Therapy
Patient Referred
START
1
1
1
Now add the number of people that process ONE
form/patient at each stage (not how many you have
working in that area)
1min
2mins
40mins
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STEP 10
98
56
Assessment
Treatment
Rehab / Therapy
Patient Referral
START
1
1
1
Calculate the touch time by adding all the
information on the bottom of your timeline
Touch Time / Cycle Time
60mins
90mins
5mins
120mins
5mins
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STEP 11
98
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Treatment
Assessment
Rehab / Therapy
Patient Referral
START
1
1
1
Calculate the lead time by adding all the figures
on the top and bottom rows of your timeline
Touch Time / Cycle Time
Lead Time
90mins
60mins
5 mins
120 mins
5mins
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From Process Maps to Value Stream Maps

• What does your current process map show?
• Where do you need to collect more data in order
  to create a current state value stream map?
• What is your action plan to do this?
• Aim to create a future state value stream map
  which minimises waste

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Thank you Any Questions?