Simulating without Data

1
Simulating without Data

• Dr Dean S Hartley III
• Hartley Consulting

December xx, 2002
DSH-0332
2
Personal Information Carrier (PIC)

• The PIC is a dog-tag sized memory card that
  slides into a PC card adapter made especially for
  this device
• The U.S. Army Medical Research and Materiel
  Command (MRMC) Telemedicine and Advanced
  Technology Research Center (TATRC) is developing
  the PIC to contain the entire medical record of
  soldiers, both enlisted and officers, throughout
  their military career
• The intent is to make this information readily
  available anywhere the soldier seeks medical
  treatment

3
Problem
CONUS
THEATER
4
Solution
Hardened Dogtag
Medical Records Database
5
Next Problem

• What are the records to be stored?
• How much room will each take?
• How many records are expected in a lifetime?
• Can the technology support them?
• How can the information be protected?

6
Process

• Define types of encounters
• Estimate text size for each type
• Estimate image size for each type
• Define relevant patient categories (e.g., man,
  woman, enlisted, officer, pilot, etc.)
• Estimate frequencies for each type by category
• Build model

7
Military Medical Encounters
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Distributions
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Pseudo-Data
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Pseudo-Data (2)
11
Pseudo-Data (3)
12
Pseudo-Data (4)
13
Pseudo-Data (5)
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Model Setup in Arena
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Text Rqmts Distribution (Megs)
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Image Rqmts Distribution (Gigs)
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Answer

• Pseudo-data says a 2 meg CompactFlash is
  sufficient for text data
• Pseudo-data says a 2 gig Compact Flash is
  required for image data
• Technology will support megs, not gigs
• Real data not required
• Store text data, facial image, fingerprint images

18
Conclusions

• All models need testing for order of magnitude
  results
• Some problems only require order of magnitude
  results
• This problem only required understanding the
  problem plus pseudo-data