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Table for the Selection of Life-Cycle

Lifecycle model

capability

Pure

Waterfall Code & fix Spiral

model

Modified

Waterfall

Evolutionary

Prototyping

Staged

Delivery

Evolutio

nary

Delivery

Design-to-

Schedule

Design-to-

Tools

Commercial Off

the Shelf

Software

Works with poorly

understood

requirements

Poor Poor Excellent Fair to

Excellent Excellent Poor Fair to

Excellent Poor to Fair Fair Excellent

Works with poorly

understood

architecture

Poor Poor Excellent Fair to

Excellent Poor to Fair Poor Poor Poor Poor to

Excellent Poor to Excellent

Produces highly

reliable systems Excellent Poor Excellent Excellent Fair Excellent Fair to

Excellent Fair Poor to

Excellent Poor to Excellent

Produces system

with large growth

envelope

Excellent Poor to

Fair Excellent Excellent Excellent Excellent Excellent Fair to

Excellent Poor N/A

Manages risks Poor Poor Excellent Fair Fair Fair Fair Fair to

Excellent

Poor to

Fair N/A

Can be constrained

to a predefined

schedule

Fair Poor Fair Fair Poor Fair Fair Excellent Excellent Excellent

Has low overhead Poor Excellent Fair Excellent Fair Fair Fair Fair Fair to

Excellent Excellent

Allows for

midcourse

corrections

Poor Poor to

Excellent Fair Fair Excellent Poor Fair to

Excellent Poor to Fair Excellent Poor

Provides customer

with progress

visibility

Poor Fair Excellent Fair Excellent Fair Excellent Fair Excellent N/A

Provides

management with

progress visibility

Fair Poor Excellent Fair to

Excellent Fair Excellent Excellent Excellent Excellent N/A

Requires little

manager or

developer

sophistication

Fair Excellent Poor Poor to

Fair Poor Fair Fair Poor Fair Fair

Adapted from McConnell (1996)