Evolution vs. Servicing - Lifecycle Phases

Evolution Phase Definition

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volume_mute

In the evolution and servicing lifecycle model, what characterizes the 'evolution' phase of a software system?

Significant changes are made to the software architecture and functionality

The system is permanently taken out of use and replaced

Only small, essential tactical changes are made to keep the system running

No changes of any kind are permitted to the software

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Servicing Phase Definition

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volume_mute

What characterizes the 'servicing' phase of a software system's lifecycle?

All historical bugs are simultaneously fixed in a single large release

Major architectural redesign is undertaken to add new functionality

Only relatively small but essential changes are made to the system

The system receives its very first release to customers

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Why Systems Transition from Evolution to Servicing

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volume_mute

Why does a software system typically transition from the evolution phase to the servicing phase?

The original developers always quit once a system reaches the evolution phase

Servicing is required before software can legally be sold to customers

Government regulation requires all software to enter a servicing phase after exactly five years

As the software is modified repeatedly, its structure degrades, making significant changes progressively less cost-effective

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Order of Software Lifecycle Phases

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Arrange the four phases of the software lifecycle in the correct chronological order, from first to last.

Software evolution

Software development

Software servicing

Software retirement

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Overlapping Lifecycle Phases

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volume_mute

True or False: The development, evolution, servicing, and retirement phases of a software system have sharp, non-overlapping boundaries, with one phase ending completely before the next begins.

True

False

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Behavior During the Final Stage Before Retirement

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volume_mute

What typically happens to a software system in the final stage before it is retired?

The system receives a complete architectural overhaul to extend its life indefinitely

The system is given new functionality to compete with modern alternatives

All users are immediately migrated to a replacement system with zero transition cost

Only essential changes are made, and users have to work around problems they discover

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Costs Associated with Retirement

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volume_mute

What additional cost is often incurred when a software system is finally retired?

A one-time tax imposed on retired enterprise software

The cost of transferring data from the old system to a newer replacement system

A mandatory licensing fee paid to the original software vendor

The cost of training all users on the retired system one final time

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Classify Lifecycle Activities

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Classify each described activity into the correct lifecycle phase.

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Evolution Phase Definition

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Servicing Phase Definition

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Why Systems Transition from Evolution to Servicing

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Order of Software Lifecycle Phases

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Overlapping Lifecycle Phases

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Behavior During the Final Stage Before Retirement

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Costs Associated with Retirement

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Classify Lifecycle Activities

drag and drop the selected option to the right place

Correct Answer

Explanation

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