3. RM Routine Maintenance
Critical Processes and Machine Functionality Assurance:
Parameters Inspection, Cleaning and Lubrication
Pressure Check and Adjustment
Pneumatic
Hydraulic
Level Check and Adjustment
Chemical, Oil, Water
Etc.
Flow rate Check and Adjustment
Coolant, Chemical and Chilled Water
Temperature Check and Adjustment
Filters Check and Actions
Etc.
3
4. CM Corrective Maintenance
Critical Machine Operation and Component and Parts Functionality
Assurance:
Inspection and adjustment of critical areas and minor repair while machine is
operational – per checklist (may use recommended PM checklist)
Short shutdown or on the fly repair. May be carried forwards to Preventive
Maintenance day
Mechanical
Alignment
Tightening
Electrical
Termination
Heat sign
Instrumentation
Tuning
Setting
4
5. Preventive Maintenance
Critical Machine Operation and Component and Parts
Functionality Assurance:
Per machine manual or per historical data
Parts or component estimated lifetime expiry
Normal wear and tear
Per standard OEM parts or components
Carry over from Corrective Maintenance
Prevention of machine breakdown in between PM
5
6. Predictive Maintenance
Critical Machine Operation and Component and Parts
Functionality Assurance:
Automated Corrective Maintenance
Electronic Sensing Inspection or Monitoring
Real lifetime parts replacement or maintenance – cost effective in the
long run
Cost effective through actual parts or component replacement
that are based on their true lifetime.
Maintenance Programming based on Historical Database
Bearing, chemical property, flow rate, temperature of electrical cable
termination, etc.
6
7. Reliability Centered Maintenance
Critical Machine Operation and Component and Parts
Functionality Assurance:
Based on historical data from Corrective Maintenance,
Preventive Maintenance and Predictive Maintenance
Upgrading critical parts or components to;
Increase their lifetime, hence increasing Preventive
Maintenance interval.
Increase machine smoothness to allow better output rate
Improve the machine stability to produce at higher rate and
consistent quality
7
8. Proactive Maintenance or MFMEA
(Early Machine Maintenance)
Critical Machine Operation and Component and Parts
Functionality Assurance:
Based on past maintenance experiences
Assessing machine prior to purchase or installation and taking
proactive actions to achieve zero failure, zero or minimum
maintenance, stable machine and high output rate.
Results:
Better productivity
Better quality
Better safety
Better cost
With minimum or eliminated risks of failures
8
11. Autonomous Maintenance Objectives
Achievement of World Class productivity of OEE > 85% and
CpK > 1.67, through;
Zero Machine Failure
Zero Process Failure
Validated Process
Minimum Changeover Time
No trade off with number of changeovers
Competent Production Team
Qualified Production Team
Qualified with Productivity and Quality Tools
12. TPM – AUTONOMOUS MAINTENANCE
PROGRAM
Phase 1 TPM AM Steps:
1. 5S Installation and CJT. Train Production on RM
2. 5S Improvement and CJT. Qualify Production on RM.
3. 5S Standardization, CJT and RM. Train Production on CM.
4. 5S, CJT and RM. Qualify Production on CM.
Subsequent TPM AM Steps:
5. 5S, CJT, RM and CM. Train Production on Minor PM.
6. 5S, CJT, RM and CM. Qualify Production on Minor PM
7. 5S, CJT, RM, CM and Minor PM – Full Autonomous
13. Process Function Analysis
Process Flow Process Function Potential Failure? Cause? Countermeasures?
Inspection, Monitoring,
Routine Maintenance RM
(adjustment, alignment, etc)
•Pressure check and
adjustment
•Level check and
adjustment - chemical, oil,
water
•Flow rate check and
adjustment - coolant,
chemical and chilled water
•Temperature check and
adjustment
•Filters check, cleaning or
replacement
14. Routine Maintenance
Zero Failure Assurance
Process Flow Potential Failure? Frequency? Audit?
Countermeasures?
Inspection, Monitoring,
Routine Maintenance RM
(adjustment, alignment, etc)
•Pressure check and
adjustment
•Level check and
adjustment - chemical, oil,
water
•Flow rate check and
adjustment - coolant,
chemical and chilled water
•Temperature check and
adjustment
•Filters check, cleaning or
replacement
Tools and
Materials?
15. Routine Maintenance Checklist
Maintenance
Actions Type
Air
Pressure
Hydraulic
Oil Level
Material
1 Level
Material
2 Level
Chilled Water
Flow Rate
Air Flow
Rate
Machine
Alignment
Sensor
Alignment
Clean
Inspect
Adjust
Others
Audited by
Note:
Machine:______________ Date:__________ Shift/Time:__________ Performed by:__________________
16. Machine Function Analysis
Function Potential Failure? Cause? Countermeasures?
Inspection, Monitoring,
Corrective Maintenance CM
(tightening, lubrication,
minor repair, etc)
•Mechanical – Alignment,
Tightening
•Electrical – Termination,
Heat sign
•Instrumentation – Tuning,
Setting
Machine
Sections,
Component
or Parts
•Mechanical
•Electrical
•Instrument
17. Corrective Maintenance
Zero Failure Assurance
17
Machine
Sections,
Component
or Parts
•Mechanical
•Electrical
•Instrument
Potential Failure? Frequency? Audit?
Tools and
Materials?
Countermeasures?
Inspection, Monitoring,
Corrective Maintenance CM
(tightening, lubrication,
minor repair, etc)
•Mechanical – Alignment,
Tightening
•Electrical – Termination,
Heat sign
•Instrumentation – Tuning,
Setting
18. Corrective Maintenance Checklist
Maintenance
Action Type
Feeder
Motor
Bearing
Extruder
Screw
Bearing
Hydraulic
Piping &
Coupling
Conveyor
Bearing
Materials
Metering
System
Electrical,
PLC
Cooling
Temperature
Hunting
Tuning
Clean
Inspect
Tighten
Lubricate
Replace
Repair
Tuning
Others
Audited by
Note:
18
Machine:______________ Date:__________ Shift/Time:__________ Performed by:__________________
19. ASSESSMENT OF AUTONOMOUS
MAINTENANCE STEP 1
No. Question
1 Are employees competent at their Core Job Task?
2 Have OEE and CpK baselines been established?
3 Are employees competent at 5S Step 1?
4 Have 5S 3-Star standards been achieved?
5 Have employees been trained on Routine Maintenance (RM)?
6 Have employees been trained on Kobetsu Kaizen?
7 Is there an information board at the machine area and is it kept up to date? (Including OEE, CpK,
IFL, AM actions, Fuguai, customer complaints)
19
Example : Audit questionnaire for Step 1 Autonomous Maintenance Qualification.
20. ASSESSMENT OF AUTONOMOUS
MAINTENANCE STEP 2
No. Question
1 Are employees competent at their Core Job Task?
2 Have OEE and CpK improvement been achieved?
3 Are employees competent at 5S Step 2?
4 Have 5S 3-Star standards been maintained or 5S 4-Star standards been achieved?
5 Have employees been qualified on Routine Maintenance (RM)?
6 Have RM been performed effectively?
7 Have employees been qualified on Kobetsu Kaizen?
8 Have employees participated in Kobetsu Kaizen projects?
9 Is there an information board at the machine area and is it kept up to date? (Including OEE, CpK,
IFL, AM actions, Fuguai, KKaizen, customer complaints)
10 Has there been improvement in overall team discipline and production performance, as
compared to Step 1 period?
20
Example : Audit questionnaire for Step 2 Autonomous Maintenance Qualification.
21. ASSESSMENT OF AUTONOMOUS
MAINTENANCE STEP 3
No. Question
1 Are employees competent at their Core Job Task?
2 Have OEE and CpK improvement been achieved?
3 Are employees competent at 5S Step 3?
4 Have 5S 3-Star standards been maintained or 5S 4~5-Star standards been achieved?
5 Have employees been qualified on Routine Maintenance (RM)?
6 Have RM been performed effectively?
7 Have employees been trained on Corrective Maintenance (CM)?
8 Have employees been qualified on Kobetsu Kaizen?
9 Have employees participated in Kobetsu Kaizen projects?
10 Is there an information board at the machine area and is it kept up to date? (Including OEE, CpK,
IFL, AM actions, Fuguai, KKaizen, customer complaints)
11 Has there been improvement in overall team discipline and production performance, as
compared to Step 2 period?
21
Example : Audit questionnaire for Step 3 Autonomous Maintenance Qualification.
22. ASSESSMENT OF AUTONOMOUS
MAINTENANCE STEP 4
No. Question
1 Are employees competent at their Core Job Task?
2 Have OEE and CpK improvement been achieved?
3 Are employees competent at 5S Step 3?
4 Have 5S 3-Star standards been maintained or 5S 4~5-Star standards been achieved?
5 Have employees been qualified on Routine Maintenance (RM)?
6 Have RM been performed effectively?
7 Have employees been qualified on Corrective Maintenance (CM)?
8 Have CM been performed effectively?
8 Have employees been qualified on Kobetsu Kaizen?
10 Have employees participate in Kobetsu Kaizen projects?
11 Is there an information board at the machine area and is it kept up to date? (Including OEE, CpK,
IFL, AM actions, Fuguai, KKaizen, customer complaints)
12 Has there been improvement in overall team discipline and production performance, as
compared to Step 3 period?
22
Example : Audit questionnaire for Step 4 Autonomous Maintenance Qualification.
25. Planned Maintenance Objectives
More Quality Machine Run Time
Zero Machine Failure or Assist
Zero Repair Delay
Zero Machine Maintenance
Competent Maintenance Team
Competent Production Team
25
26. MAINTENANCE PERFORMANCE
Measurement of machine availability, quality and reliability
PM Time
PM Interval
MTBF – Mean Time Between Failures
YTD calculation of moving average between machine failure or
breakdown
MTTR – Mean Time To Repair (downtime average)
YTD calculation of moving average of time taken to repair machine
failure or breakdown
MTBA – Mean Time Between Assists
YTD calculation of moving average between assistance to the
machine requested by production staff
26
27. MTBF and MTTR
27
Jan 1 Jan 31 Feb 28 Mar 31
PM 1 1
Day
PM 2 1
Day
B/D 5th
1 Day
B/D
10th 1
Day
B/D
10th 1
Day
24
hours
24
hours
24
hours
•MTBF Jan = (120)/1
= 120 hrs
•MTBF Feb = (120 +
600 + 240)/2 = 480
hrs
•MTBF Mar = (120 +
600 + 240 + 408 +
240)/3 = 536 hrs
120
hours
600
hours
240
hours
408
hours
480
hours
240
hours
•MTTR Jan = 24/1 =
24 hrs
•MTTR Feb = (24 +
24)/2 = 24 hrs
•MTTR Mar = (24 +
24 + 24)/3 = 24 hrs
28. MTBA
28
Jan 1 Jan 31 Feb 28 Mar 31
PM 1 1
Day
PM 2 1
Day
Assist 5th
Assist 10th
Assist 10th
24
hours
24
hours
24
hours
•MTBA Jan =
(120)/1 = 120 hrs
•MTBA Feb = (120 +
600 + 240)/2 = 480
hrs
•MTBA Mar = (120 +
600 + 240 + 408 +
240)/3 = 536 hrs
120
hours
600
hours
240
hours
408
hours
480
hours
240
hours
29. TPM – PLANNED MAINTENANCE PROGRAM
Phase 1 TPM PM Steps;
1. 5S Installation, RM, CM and PM. Train Production on RM. Train
Maintenance on PdM.
2. 5S Improvement, RM, CM and PM. Qualify Production on RM and train
Production on CM. Qualified Maintenance on PdM.
3. 5S Standardization, CM and PM. Qualify Production on CM and train
Production on PM. Train Maintenance on RCM.
4. 5S and PM. Qualify Production on PM. Qualify Maintenance on RCM.
Subsequent Phase:
5. 5S and PM. Train Maintenance on ProM.
6. 5S, PM and PredM. Qualify Maintenance on ProM.
7. 5S, PM, PredM, RCM and ProM
29
30. ASSESSMENT OF PLANNED MAINTENANCE STEP
1
No. Question
1 Are employees competent at their Core Job Task – RM, CM and PM?
2 Have PM Time, Interval, MTBF, MTBA and MTTR baselines been established?
3 Are employees competent at 5S Step 1?
4 Have 5S 3-Star standards been achieved?
5 Have employees been trained on PdM?
6 Have employees been trained on Kobetsu Kaizen?
7 Is there an information board at the maintenance area and is it kept up to date? (Including PM
Time, PM Interval, MTBF, MTBA, MTTR, Fuguai, etc.)
30
Example : Audit questionnaire for Step 1 Planned Maintenance Qualification.
31. ASSESSMENT OF PLANNED MAINTENANCE STEP
2
No. Question
1 Are employees competent at their Core Job Task – RM, CM, PM and PdM?
2 Have PM Time, Interval, MTBF, MTBA and MTTR improvement been achieved?
3 Are employees competent at 5S Step 2?
4 Have 5S 3-Star standards been maintained or 5S 4-Star standards been achieved?
5 Have employees been qualified on PdM?
6 Have PdM been performed effectively?
7 Have employees been qualified on Kobetsu Kaizen?
8 Have employees participated in Kobetsu Kaizen projects?
9 Is there an information board at the maintenance area and is it kept up to date? (Including PM
Time, PM Interval, MTBF, MTBA, MTTR, Fuguai, KKaizen, customer complaints)
10 Has there been improvement in overall team discipline and maintenance performance, as
compared to Step 1 period?
31
Example : Audit questionnaire for Step 2 Planned Maintenance Qualification.
32. ASSESSMENT OF PLANNED MAINTENANCE STEP
3
No. Question
1 Are employees competent at their Core Job Task – RM, CM, PM and PdM?
2 Have PM Time, Interval, MTBF, MTBA and MTTR improvement been achieved?
3 Are employees competent at 5S Step 3?
4 Have 5S 3-Star standards been maintained or 5S 4~5-Star standards been achieved?
5 Have employees been qualified on PdM?
6 Have PdM been performed effectively?
7 Have employees been trained on Reliability Centered Maintenance (RCM)?
8 Have employees been qualified on Kobetsu Kaizen?
9 Have employees participated in Kobetsu Kaizen projects?
10 Is there an information board at the maintenance area and is it kept up to date? (Including PM
Time, PM Interval, MTBF, MTBA, MTTR, Fuguai, KKaizen, customer complaints)
11 Has there been improvement in overall team discipline and maintenance performance, as
compared to Step 2 period?
32
Example : Audit questionnaire for Step 3 Planned Maintenance Qualification.
33. ASSESSMENT OF PLANNED MAINTENANCE STEP
4
No. Question
1 Are employees competent at their Core Job Task – RM, CM, PM, PdM and RCM?
2 Have PM Time, Interval, MTBF, MTBA and MTTR improvement been achieved?
3 Are employees competent at 5S Step 3?
4 Have 5S 3-Star standards been maintained or 5S 4~5-Star standards been achieved?
5 Have employees been qualified on PdM?
6 Have PdM been performed effectively?
7 Have employees been qualified on Reliability Centered Maintenance (RCM)?
8 Have RCM been performed effectively?
8 Have employees been qualified on Kobetsu Kaizen?
10 Have employees participated in Kobetsu Kaizen projects?
11 Is there an information board at the maintenance area and is it kept up to date? (Including PM
Time, PM Interval, MTBF, MTBA, MTTR, Fuguai, KKaizen, customer complaints)
12 Has there been improvement in overall team discipline and maintenance performance, as
compared to Step 3 period?
33
Example : Audit questionnaire for Step 4 Planned Maintenance Qualification.
34. PREVENTIVE MAINTENANCE
Main Sources
Machine Manual Recommendation on Service and Maintenance
Routine Maintenance CAR
Corrective Maintenance CAR
Predictive Maintenance CAR
Reliability Centered Maintenance CAR
35. Machine Function Analysis
35
Function Potential Failure? Cause? Countermeasures?
Inspection, Monitoring,
Corrective Maintenance CM
(tightening, lubrication,
minor repair, etc)
•Mechanical – Alignment,
Tightening
•Electrical – Termination,
Heat sign
•Instrumentation – Tuning,
Setting
Machine
Sections,
Component
or Parts
•Mechanical
•Electrical
•Instrument
36. Preventive Maintenance
Zero Failure Assurance
36
Machine
Sections,
Component
or Parts
•Mechanical
•Electrical
•Instrument
Potential Failure? Frequency? Audit?
Tools and
Materials?
Countermeasures?
Inspection, Monitoring,
Corrective Maintenance CM
(tightening, lubrication,
major repair, etc)
•Mechanical – Alignment,
Tightening
•Electrical – Termination,
Heat sign
•Instrumentation – Tuning,
Setting
37. Preventive Maintenance Schedule
Maintenance Parts, Component
or Section
Month/Maintenance/Action Type
Jan Feb Mar Apr May Jun Jul
Main Conveyor
Finish Conveyor 1
Finish Conveyor 2
Main Drive Motor
Nip Roll
Cutter 1
Cutter 2
Folding Hydraulic
Lot Number Printer
Note:
37
Machine:______________ Year:__________ Engineer/Planner:_________________________
38. Preventive Maintenance Checklist
Maintenance
Action Type
Feeder
Motor
Bearing
Extruder
Screw
Bearing
Hydraulic
Piping &
Coupling
Conveyor
Bearing
Materials
Metering
System
Electrical,
PLC
Cooling
Temperature
Hunting
Tuning
Clean
Inspect
Tighten
Lubricate
Replace
Repair
Tuning
Others
Performed by
Audited by
Note:
Machine:______________ Date:__________ Shift:__________ Team Leader:_________________________
39. Preventive Maintenance Checklist
Maintenance
Action Type
Maintenance Parts, Component or Section
Clean
Inspect
Tighten
Lubricate
Replace
Repair
Tuning
Others
Performed by
Audited by
Note:
Machine:______________ Date:__________ Shift:__________ Team Leader:_________________________
40. PREDICTIVE MAINTENANCE
Predictive maintenance (PdM) techniques are
designed to help determine the condition of in-
service equipment in order to predict when
maintenance should be performed. This approach
promises cost savings over routine or time-based
preventive maintenance, because tasks are
performed only when warranted.
41. PREDICTIVE MAINTENANCE
The main promise of Predicted Maintenance is to allow
convenient scheduling of corrective maintenance, and to
prevent unexpected equipment failures. The key is "the right
information in the right time". By knowing which equipment
needs maintenance, maintenance work can be better planned
(spare parts, people, etc.) and what would have been
"unplanned stops" are transformed to shorter and fewer "planned
stops", thus increasing plant availability.
42. The "predictive" component of predictive maintenance
stems from the goal of predicting the future trend of the
equipment's condition. This approach uses principles of
statistical process control to determine at what point in
the future maintenance activities will be appropriate.
Most PdM inspections are performed while equipment is in
service, thereby minimizing disruption of normal system
operations. Adoption of PdM can result in substantial cost
savings and higher system reliability.
PREDICTIVE MAINTENANCE
43. Vibration analysis is most productive on high-speed rotating
equipment and can be the most expensive component of a
PdM program to get up and running. Vibration analysis, when
properly done, allows the user to evaluate the condition of
equipment and avoid failures. But despite such capabilities,
not even the most sophisticated equipment successfully
predicts developing problems unless the operator
understands and applies the basics of vibration analysis.[2]
PREDICTIVE MAINTENANCE
44. Acoustical analysis can be done on a sonic or ultrasonic level.
New ultrasonic techniques for condition monitoring make it
possible to “hear” friction and stress in rotating machinery,
which can predict deterioration earlier than conventional
techniques.[3] Ultrasonic technology is sensitive to high-
frequency sounds that are inaudible to the human ear and
distinguishes them from lower-frequency sounds and
mechanical vibration. Changes in these friction and stress
waves can suggest deteriorating conditions much earlier than
technologies such as vibration or oil analysis..
PREDICTIVE MAINTENANCE
45. Sonic monitoring equipment is less expensive, but it also has
fewer uses than ultrasonic technologies. Sonic technology is
useful only on mechanical equipment, while ultrasonic
equipment can detect electrical problems and is more flexible
and reliable in detecting mechanical problems.
Infrared monitoring and analysis can be effective for spotting
both mechanical and electrical failures; some consider it to
currently be the most cost-effective technology.
PREDICTIVE MAINTENANCE
46. Oil analysis is a long-term program that, where relevant, can
eventually be more predictive than any of the other
technologies. Analytical techniques performed on oil samples
can be classified in two categories: used oil analysis and
wear particle analysis. Used oil analysis determines the
condition of the lubricant itself, determines the quality of
the lubricant, and checks its suitability for continued use.
Wear particle analysis determines the mechanical condition
of machine components that are lubricated.
PREDICTIVE MAINTENANCE
48. MTBF, MTBA and MTTR
Jan 1 Jan 31 Feb 28 Mar 31
PM 1
1 Day
PM 4
1 Day
PM 3
1 Day
PM 2
1 Day
49. Reliability Centered Maintenance –
Capacity Improvement
PM Component
or Part
Frequency of
Replacement
Can it’s life be
prolonged
If yes –
how?
If no –
how?
Expected
new lifespan
Actions
PM Component
or Part
Upgraded
Procedure
Upgrade
Replacement
Previous
Lifespan
New
Lifespan
Availability
Improvement
OEE
Improvement
50. PM Interval, MTBF, MTBA and MTTR
50
Jan 1 Month ?
PM 1
1 Day
PM 2
1 Day
Jan 31 Feb 28
51. Notification for Maintenance
Review and Approval to Proceed
Generating Work Order
Permit to Work
Execution of Work
Review for Acceptance
Closing of Work Order
Handover
Updating Machine Breakdown Schedule
Updating Parts or Component Breakdown History Report
FAST STEPS AND TOOLS
52. SOP FOR PLANNED MAINTENANCE
Generating Preventive Maintenance Schedule
Generating Work Order
Permit to Work
Execution of Work
Review for Acceptance
Closing of Work Order
Handover
Updating PM Schedule
Updating Parts or Component Lifespan History Report
SOP FOR PLANNED MAINTENANCE
53. SOP FOR PREDICTIVE MAINTENANCE
Determination methodology of failure mode capture
Determination of Failure Specification and Control Limits
Determination of Action Threshold Trend
Updating Parts or Component Breakdown History Report
Compilation of Saving and Improvement
55. FAST STEPS AND TOOLS
Identification of Issues or Problems
Tools;
Affinity Diagram
Selection Matrix
Defining Issues or Problems
Tools;
5W1H
Charts
SMART Target
55
56. Identification of Causes and Root Causes
Tools;
Relation Diagram
Affinity Diagram
Why-Why
Verification Matrix
Selection Matrix
56
FAST STEPS AND TOOLS
57. Identification of Solutions and Actions
Tools;
Tree Diagram
Affinity Diagram
Verification Matrix
Selection Matrix
Planning for Implementation
Tools;
WBS
Gantt Chart
FAST STEPS AND TOOLS
58. AFFINITY DIAGRAM ANALYSIS
TOPIC OF PROBLEM
DISCUSSION
IDEA
CATEGORY 1
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
CATEGORY 2
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
CATEGORY 3
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
CATEGORY 4
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
CATEGORY 5
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
59. RELATION DIAGRAM ANALYSIS
WHY IS THE
CONDITION IS
NOT POSITIVE
IDEA CATEGORY
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA CATEGORY
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA CATEGORY
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA CATEGORY
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
Relationship
Interaction
Analysis
between
ideas
60. TREE DIAGRAM ANALYSIS
GOAL OF
IMPROVEMENT
WITH SMART
TARGET
SOLUTION
CATEGORY 1
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
SOLUTION
CATEGORY 2
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
SOLUTION
CATEGORY 3
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
SOLUTION
CATEGORY 4
IDEA
IDEA
IDEA
IDEA
IDEA
IDEA
VERIFIED
CONSTRAINTS
(ROOT CAUSES)
61. SELECTION MATRIX
IDEA BUS IMPACT
CUSTOMER
IMPACT
INVESTMENT COMPETENCE
FAST
REALIZATION
SCORE
Rank selection criteria with 1 to 5 to indicate minimum to
maximum relevancy
Multiply
ranks