Value Stream
Mapping
Tips
• Keep it high level
• Remember this is a value stream map NOT a process map
• Use approximately 8 process steps
• Focus on the high volume work i.e. ~80% of the work. This is
called the ‘Green Stream’
• Walk through the pathway yourself BEFORE you attempt to create
a value stream map
• Have lots of brown paper and post it notes
STEP 1
STOP
Result Received
Patient Referred
START
Establish process START and STOP points
STEP 2
Sample Sorting
Processing
Primary Screening
STOP
Result Issued
Patient Referred
START
Insert the key process steps
Use approx 6-8 boxes
Start from the end of the process and work backwards
STEP 3
GP Surgery
Ward
End Customer
(Patient)
Sample Sorting
Processing
Data Entry
STOP
Result Issued
Patient Referred
START
Add in the outside agencies
Customers, other processes, other agencies
STEP 4
GP Surgery
Ward
End Customer
(Patient)
= symbol
for paper
data flow
Sample Sorting
Processing
= symbol for
electronic link
Data Entry
STOP
Result Issued
Patient Referred
START
Add in the data flows – electronic and paper
STEP 5
GP Surgery
Sample Sorting
End Customer
(Patient)
Processing
Patient Refered
START
Pull
Data Entry
Push
Insert arrows between the boxes to show how the information /
items are flowing.
Is it a push or is it a pull?
STEP 6
Patient Referral
START
Sample Sorting
Cycle time =
Insert the measurements - Gather real
data - this is your chance to really
understand what’s happening.
Cycle time – How many
seconds/mins/hours does it
take to process ONE item?
Batch Size – What is the size of
each batch that is handled in this
stage of the process?
Batch Size =
Defects – What percentage
is not right first time and
requires further work?
Defects =
Trigger=
Trigger – What causes the
process to start? i.e. what
triggers staff to start processing
referrals?
STEP 7
GP Surgery
Patient Referred
START
Sample Sorting
Processing
Add a triangle
with a ‘W’ to
indicate a wait.
Batch Size =
Defects =
W
Add the length of
time spent on the
process – this is
the same figure as
the cycle time in
your data box
W
60mins
1min
Data Entry
Add the time
delay which
occurs between
the process steps
Cycle time =
Trigger=
End Customer
(Patient)
90mins
2mins
Insert the measurements
40mins
STEP 8
Patient Referred
START
Sample Sorting
Cycle time =
Batch Size =
i
i
98
56
Processing
Data Entry
Insert the inventory between the steps – how much is
waiting between the stages?
Defects =
Trigger=
1min
This can be Request Cards, patients, slides, samples,
unauthorised reports…
2mins
40mins
STEP 9
Patient Referral
START
Sample Sorting
1
Cycle time =
Batch Size =
Defects =
Trigger=
1min
i
i
98
56
Sample Processing
1
Now add the number
of people that process
ONE form/patient at
each stage (not how
many you have working
in that area)
2mins
= people
Data Entry
1
Cycle time =
Batch Size =
Defects =
Trigger=
40mins
STEP 10
98
Patient Referral
START
Sample Sorting
Processing
1
Cycle time =
Batch Size =
Defects =
Trigger=
56
1
1
Calculate the touch time
by adding all the
information on the bottom
of your timeline
60mins
5mins
Data Entry
Cycle time =
Batch Size =
Defects =
Trigger=
Touch Time /
Cycle Time =
90mins
120mins
5mins
STEP 11
98
Patient Referral
START
Sample Sorting
Processing
1
Cycle time =
Batch Size =
Defects =
Trigger=
56
1
1
Calculate the Lead Time
by adding all the figures
on the top and bottom
rows of your timeline
Cycle time =
Batch Size =
Defects =
Touch Time /
Cycle Time =
Trigger=
Lead Time =
90mins
60mins
5 mins
Data Entry
120 mins
5mins
Future State
Value Stream
Mapping
What you need before you start
•
•
•
•
Current State Value Stream Map
Understand Waste
Understand Takt Time
An open mind
Developing Continuous Flow…
Removing the Waits
ESCS
•
•
•
•
Eliminate
Simplify
Combine
Sequence
Current State Value Stream Map
Inpatients
Outpatients
70 per day
(352/week)
I
36
Vet referral
1 x daily
I
I
36
409
Book scan
Data entry
Scan
I
I
64
61
I
I
136
Dictate report
Type
13
Verify
Report issue
CT = 120 sec
CT = 60 sec
CT = 60 sec
CT = 15 min
CT = 60 sec
CT = 60 sec
CT = 15 sec
CT=60s
C/O =
C/O =
C/O =
C/O =
C/O =
C/O =
C/O =
C/O =
defects = %
defects = %
defects = %
defects = %
defects = %
defects = %
defects = %
Defect%
Avail =
Avail =
Avail =
Avail =
Avail =
Avail =
Avail =
Avail =
Batch = 130
Batch=100
Batch= 50
Batch= 32
Batch= 12
Batch= 12
Batch=15-100
Batch100
33325
33325
120
60
60
37861
7
900
59245
56468
60
60
12589
7
15
21291
60
Touch time = 1335s
(22.25 min)
Flow time = 709703
sec
Future State Value
Stream Map
GPs
Cutpatient
Inpatient
1 x daily
70/day
352/week
I
I
409
Booking
136
Scanning
Issue
Report
FIFO
C/T = 260
C/T = 90
C/T = 60
C/O =
C/O =
C/O =
Uptime =
Uptime =
Uptime =
Avail =
Avail =
Avail =
Batch=
Batch=
Batch=
240
3786
17
125897
90
60
How do we get to our future state?
SMART OBJECTIVES
- Simple
- Measurable
- Agreed
- Realistic
- Timely
» Planning
» Who, Why, What, Where, When, How?
» Measures
» Barriers / Risks
» PDCA Cycles (plan, do, check, act)