Compute the cost benefit of reengineering using appropriate data.P1 = Current annual maintenance cost for an application = $2000P2 = Current annual operations cost for an application = $4000P3 = Current annual business value of an application = $10000 P4 = Predicted annual maintenance cost after reengineering = $500P5 = Predicted annual operations cost after reengineering = $3000P6 = Predicted annual business value after reengineering = $10000P7 = Estimated reengineering costs = $1000 P8 = Estimated reengineering
calendar time = 0.1 yearsP9 = Reengineering risk factor (P9 = 1.0 is nominal) = 1.0L = Expected life of the system = 4 yearsCmaint = [P3 - (P1 + P2)] * L = $16000
What will be an ideal response?
A cost-benefit analysis model for reengineering has been proposed by Sneed. Nine parameters are defined:
P1 = Current annual maintenance cost for an application
P2 = Current annual operations cost for an application
P3 = Current annual business value of an application
P4 = Predicted annual maintenance cost after reengineering
P5 = Predicted annual operations cost after reengineering
P6 = Predicted annual business value after reengineering
P7 = Estimated reengineering costs
P8 = Estimated reengineering calendar time
P9 = Reengineering risk factor (P9 = 1.0 is nominal)
L = Expected life of the system
The cost associated with continuing maintenance of a candidate application (i.e., reengineering is not performed) can be defined as
Cmaint = [P3 - (P1 + P2)] * L
The costs associated with reengineering are defined using the following relationship:
Creeng = P6 - (P4 + P5) * (L - P8) - (P7 * P9)
The overall benefit of reengineering can be computed as
Cost benefit = Creeng - Cmaint
You might also like to view...
If a query includes columns from multiple tables that have the same name, the statement must precede those column names with _________.
a. their database names. b. their database names and a dot. c. their table names and a dot. d. their table names.
Define a FIXED number by the grammar: N -> D. | D.D D -> ND | N N -> 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 Give a regular expression for FIXED numbers.
Fill in the blank(s) with the appropriate word(s).
Data duplicated in more than one location within a database is called ________
A) doubled B) redundant C) excess D) duplicated
The value in the middle of a sorted numerical sequence is known as the ____.
A. mode B. median C. average D. range