State the advantages and disadvantages of the evolutionary model of software development?

Answer 1

Advantages

• Risk analysis is better.
• It supports changing requirements.
• Initial Operating time is less.
• Better suited for large and mission-critical projects.
• During life cycle software is produced early which facilitates customer evaluation and feedback.

Disadvantages

• Not suitable for smaller projects.
• Management complexity is more.
• End of project may not be know which is a risk.
• Can be costly to use.
• Highly skilled resources are required for risk analysis.
• Project's progress is highly dependent upon the risk analysis phase.

Answer 2

· Deals constantly with changes.

· Provides quickly an initial version of the system.

· Involves all development teams.

· Initial supports changing requirements.

· Risk analysis is better.

· Initial operating time is less.

· Better suited for large and mission-critical projects.

· During life cycle software is produced early which facilitates customer evaluation and feedback.

Evolutionary development model has more week point as well.

· Quick fixes may be involved.

· The systems structure can be corrupted by continuous change.

· Invisible process not well-supported by documentation.

· Special tools and techniques may be necessary.

· The client may have the impression the first version is very close to the final product and thus be less patient.

· Not suitable for smaller projects.

· Management is more complex.

· Highly skilled resources are required for risk analysis.

· Project's progress is highly dependent upon the risk analysis phase.