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Below is a summary of Y2K issues concerning the GURU application.
Presence of Dates in GURU Datafiles
Dates currently exist in several of the GURU datafiles which comprise the
GURU database. Specifically, the datafiles and date fields are as follows:
| Master Patient Directory: PTNT_DIR.ITB |
|
Birthdate |
BIRTHDAT |
dd-dd-dd |
|
Status Date |
LASTDATE |
dd-dd-dd |
| Master Download Patient Directory: CHLD_DIR.ITB |
|
Birthdate |
BIRTHDAT |
dddddddd |
|
Status Date |
LASTDATE |
dddddddd |
| Addresses: CHLDSITE.ITB |
|
Status Date |
LASTDATE |
dd-dd-dddd |
| Encounters: PTENCNTR.ITB |
|
Date of Encounter |
ENC_DATE |
dd-dd-dd |
|
Date of Discharge |
DIS_DATE |
dd-dd-dd |
| Immunizations: PTNTIMMS.ITB |
|
Immunization Date |
VAC_DATE |
dddddddd |
| Problem Lists: CHLDPROB.ITB |
|
Date Problem Began |
BEGINDAT |
dd-dd-dddd |
|
Date Problem Resolved |
ENDNGDAT |
dd-dd-dddd |
Procedures to Handle Potential Y2K Problems
- All of the above datafiles with 2-digit years will be modified so that
the date fields will be of the format "dddddddd". All data will be modified
appropriately (i.e. "122299" -> "12221999"). Procedures have been written and
tested to accomplish the above.
- GURU's environmental variable E.Y2K4 will be set to TRUE throughout
all applications, forcing all dates from the #DATE variable and TODAY()
function to contain 4-digit years.
- All display screens will be reviews to ensure handling of 4-digit years
is appropriate. However, not all dates will be displayed with 4-digit years,
and the appearance of many screens will remain unchanged.
- A complete test environment has been established on a standalone
computer to copy the entire Primary Care Clinic application and make the
above datafile and program changes. Testing has been underway since September,
including data entry & updates, file downloads/uploads, display screen,
report printouts, using system dates after January 1, 2000. With the
exception of a few miscellaneous infrequent reports
that are run solely by Julie Spangler, all other applications are currently
running (as of 11/30/99) without incident.
- The completion of 'going live' with Y2K updates will require downtime of
2-3 hours to complete transfer of updated programming and to perform procedures
to alter the datafiles. This can be accomplished anytime before 12/31/99.
Specifically, the procedure will occur as follows:
- Call CIS operator to run batch program to disable all users from GURU
application.
- Update startup file CHP.MNU to disable any subsequent application launches
(i.e. change to a simple BYE statement)
- Transfer all datafiles to GURU7a directory (already in existence) where
the latest programming application will already reside.
- Perform prewritten procedures to perform datafile modifications to date
fields (estimated time 1-2 hours).
- Call Becky (or delegate) to change command line for GURU application to
redirect to new GURU7a directory.
- It is expected to have the GURU application developer on-site at CHP from
Saturday, January 1 to Monday January 3 to be available for any incidents which
may occur.
submitted by Stuart T. Weinberg, MD
GURU Application Developer
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