Getting Started with Dynamic Sensors in Nastel AutoPilot Business Views - a Tutorial
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Dynamic sensors apply to sets of fact instances that can change, such as all employees or queues starting with "S". They are identified with an asterisk in the fact name and can be created, deleted, or changed as conditions vary. Dynamic sensors can include both selection criteria to identify relevant facts and threshold rules. They allow monitoring situations that may involve different facts over time. The example shows creating a dynamic sensor to warn about employees over 200 pounds by selecting their weight facts and setting a threshold rule.
Getting Started with Dynamic Sensors in Nastel AutoPilot Business Views - a Tutorial
- 1. Creating and maintaining AutoPilot Dynamic Sensors (c) Nastel Technologies, Inc. All rights reserved.
- 2. What is a Dynamic Sensor? A sensor that applies to a set of fact instances Examples: All employees, Queues beginning with ‘S’ Identified by * in fact instance name in the sensor Created ‘dynamically’ as situation changes Important Features: Include both selection criteria and threshold rules Once created sensors can be deleted or changed as conditions change Can join one or more facts as long as fact names have same structure 2 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED.
- 3. Example 1 “Employees” 3 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED. Bob •Age=50 •Weight=189 •City=Seattle •Sex=M •Cholesterol=202 Tom Age=45 Weight=202 City=Seattle Sex=M Cholesterol=194 John Age=23 Weight=143 City=Chicago Sex=M Cholesterol=240 Louis Age=54 Weight=205 City=Atlanta Sex=M Cholesterol=174 Sally Age=53 Weight=135 City=Seattle Sex=F Cholesterol=195 Susan Age=35 Weight=153 City=Atlanta Sex=F Cholesterol=179 Warn if employees are over 200 lbs
- 4. Create a policy to… 4 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED. Select the facts required (weight)
- 5. Selection Employees over 200 pounds 5 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED.
- 6. Sensor Rules (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED.
- 7. The result Bob •Age=50 •Weight=189 •City=Seattle •Sex=M •Cholesterol=202 Tom Age=45 Weight=202 City=Seattle Sex=M Cholesterol=194 John Age=23 Weight=143 City=Chicago Sex=M Cholesterol=240 Louis Age=54 Weight=205 City=Atlanta Sex=M Cholesterol=174 Sally Age=53 Weight=135 City=Seattle Sex=F Cholesterol=195 Susan Age=35 Weight=153 City=Atlanta Sex=F Cholesterol=179 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED.
- 8. Changing the sensor name 8 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED.
- 9. Suppose Louis now loses weight? 9 Bob •Age=50 •Weight=189 •City=Seattle •Sex=M •Cholesterol=202 Tom Age=45 Weight=202 City=Seattle Sex=M Cholesterol=194 John Age=23 Weight=143 City=Chicago Sex=M Cholesterol=240 Louis Age=54 Weight=199 City=Atlanta Sex=M Cholesterol=176 Sally Age=53 Weight=135 City=Seattle Sex=F Cholesterol=195 Susan Age=35 Weight=153 City=Atlanta Sex=F Cholesterol=179 Since Louis met the criteria originally he continues to be watched.. (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED.
- 10. Expiring a dynamic sensor 10 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED. Now Louis will be removed after 20 seconds..
- 11. Example 2 11 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED. Bob •Age=50 •Weight=189 •City=Seattle •Sex=M •Cholesterol=202 Tom Age=45 Weight=202 City=Seattle Sex=M Cholesterol=194 John Age=23 Weight=143 City=Chicago Sex=M Cholesterol=240 Louis Age=54 Weight=205 City=Atlanta Sex=M Cholesterol=174 Sally Age=53 Weight=135 City=Seattle Sex=F Cholesterol=195 Susan Age=35 Weight=153 City=Atlanta Sex=F Cholesterol=179 Warn if male employees over 40 have cholesterol over 190
- 12. The wrong way 12 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED.
- 13. The right way 13 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED.
- 14. Advanced: What if Tom leaves? 14 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED. In AutoPilot, this is equivalent to facts going away (becoming null) Option 2 (if processing nulls)Option 1 (initial value requires SU13+)
- 15. Congratulations 15 (C) NASTEL TECHNOLOGIES, INC. ALL RIGHTS RESERVED. You have now learned how to create and maintain dynamic sensors.