 |
$100
Million Plus
| Amount invested: |
$100M Plus |
| Organization: |
Motor Vehicle Licensing Agency |
| Original Plans: |
To replace a mainframe system with a
client/server system (Sequent/Unix) to "lower the costs of computing".
|
| Unanticipated problems: |
The application could not support more than 50
users with an 'acceptable' response time of 10-15 seconds. With 100 users
online this frequently increased to minutes. The supplier, scrambling for
some type of solution,
actually put data integrity at risk by convincing the customer to remove
record-locking protection on updates.
Their rationale was that "it's a one in a million chance of
two users accessing the same record simultaneously." After this change the
response time improved to 10-15 seconds for up to 100 users, but still
increased rapidly thereafter. The problem is that as they issue around 3
million licenses per year the "one in a million" chance actually occurs
about three times per year when duplicate licenses are issued to different
vehicles.
|
| Project Status: |
The mainframe was finally replaced, some three years later
than expected, but the user still uses an outsourcing firm to run and
maintain their legacy mainframe
applications, at a cost close to the original total mainframe cost! The
eventual budget for the replacement system was three times the old
mainframe budget and six times the anticipated cost. In addition there has
been a 50% increase in clerical staff to handle the same volume of
transactions. |
|