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Between 1986 and 1991, Norwest instituted hundreds of
projects14 to improve the Trust TU system's functionality (including
compliance and regulatory changes) and to reduce processing costs.
These projects involved all stages of the Software Development
Methodology.
Between two and five senior programmers were assigned to
accomplish the goal of reducing the monthly cost per trust account
that was being maintained. Before 1987, the average monthly cost
per account was approximately $9. By 1990, the monthly cost per
account was reduced to approximately $4 or $5.
The programmers were also assigned the goal of increasing the
volume of trust accounts maintained in the Trust TU system. In
1986, there were approximately 25,000 trust accounts running on the
system, and the number of trust accounts was increasing by 10 to 12
percent per year. It was assumed that the existing system could
not handle more than 30,000 trust accounts.
To accomplish both goals (reduction in cost and increased
volume), NTS had to increase the speed of the so-called batch
process15 that occurred each night. (During the day, the Trust TU
14 Some of the smaller projects included building reports,
updating software to reflect regulatory changes, converting
acquired bank trusts customers, and changing screens.
15 The batch process consists of editing information,
posting information, extracting information, and producing
(continued...)
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