WSP07134

• File Number: 8283.200
• Description: Colorado River Decision Support System - CRDSS
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 1/1/1993
• Author: Dames and Moore
• Title: Feasibility Study Report for a Colorado River Decision Support System
• Water Supply Pro - Doc Type: Report/Study

00306~

e

will be a significant cost. Not only do various DMIs need to be
developed. one for each model, but various models need to be
enhanced so that they can serve the needs of users.

3. Development of status and reporting utilities. For two of the four
broad categories of needs, reporting and status information. interfaces
and utilities need to be developed, Costs estimates for these
components are included.

4. Development of analysis software. Analysis software includes
various utilities and interfaces for viewing data and model results (e,g.
plOlting facilities~ as well as utilities for funher analysis of data (e.g,
statistical measures and analysis techniques).

5. Cost of third party software. Implementation of CRDSS requires the
use and installation of third party software.

6. Cost of hardware.Implementation of CRDSS requires the installation
of various types of hardware.

Costs for categories one to four were estimated in person months. Since at the
time of this feasibility study it was unknown which group or implementation
team would be contracted to conduct the various elements of the CRDSS
implementation, the following estimates for a person month were used:

. State water engineer/computer specialist: $4,400/month

. State computer system administrator/modeler: $6.200/month

. University rates: $8.500/month.

. Engineering Consultant rates: $12,OOO/month. and

. Consulting Software Engineering rates: $13,OOO/month.

The first two cost rates are used later in the calculation of probable Operations
and Maintenance; the last three rates are utilized in the following analysis of
system implementation. These rates were acquired through the use of
information on rate structures from various Colorado universities, engineering
consultant finns, and corporate software development finns.

Costs of designing/prototyping the database include the collection of data,
processing the data. populating the database, quality checking data, and
performance tuning of the database (Table 11), The database development
costs are identical for both the centralized and the disnibuted architecture,

e

Table 11: Estimated Costs of Database Design and Development

e

Person $8,500 I $12,000 I $13.000 I
Task Months person person person
month month month
-Design I Prototype " 9 $76,500 .- $10&,000 . $117.000-
Geographic DB' 75 $637,500 $900,000 $975.000

Database Design and
Development

DAMES & M OORE/CA DSWES-46