Why maintenance consumes most software cost in Software Engineering - Challenge Your Understanding

Challenge - 5 Problems

🧠 Conceptual

intermediate

Why is software maintenance often more expensive than initial development?

Software maintenance usually costs more than the original creation. Why does this happen?

A Because maintenance involves fixing unexpected issues and adapting to changes over time.

B Because initial development uses outdated tools that increase costs.

C Because maintenance requires rewriting the entire software from scratch.

D Because maintenance is done only by junior developers who work slower.

💡 Hint

Think about what happens after software is released and how it needs to keep working well.

Maintenance includes fixing bugs, updating software for new environments, and adding features. These ongoing tasks add up and often cost more than the initial build.

📋 Factual

intermediate

Which activity is NOT typically part of software maintenance?

Identify the activity that is generally not considered part of software maintenance.

A Updating software to work with new hardware or OS versions.

B Adding new features requested by users.

C Correcting software defects found after release.

D Initial design and coding of the software.

💡 Hint

Think about what happens before and after the software is released.

Initial design and coding happen before release and are part of development, not maintenance.

🔍 Analysis

advanced

How does software complexity affect maintenance costs?

Consider two software systems: one simple and one very complex. How does complexity impact maintenance costs?

A More complex software usually costs more to maintain because it is harder to understand and change safely.

B Complexity has no effect on maintenance costs since maintenance is only about fixing bugs.

C Complexity reduces maintenance costs because complex software is more stable.

D Simple software costs more to maintain because it lacks features.

💡 Hint

Think about how difficult it is to work with complicated systems versus simple ones.

Complex software has many parts that interact, making it harder to find and fix problems or add features without causing new issues.

❓ Reasoning

advanced

Why does software maintenance continue long after initial release?

Why must software be maintained for many years after it is first released?

A Because software is usually incomplete at release and requires finishing later.

B Because software automatically breaks down after a fixed time period.

C Because user needs change, technology evolves, and bugs are discovered over time.

D Because maintenance teams prefer to keep working on old software instead of new projects.

💡 Hint

Think about what happens in the world around software after it is released.

Software must adapt to new user requirements, hardware, and environments, and fix issues found after release, so maintenance is ongoing.

❓ Comparison

expert

Compare the cost distribution between software development and maintenance phases.

Which statement best describes the typical cost distribution between development and maintenance phases of software?

A Development costs are always higher because building software is more complex than maintaining it.

B Maintenance costs often exceed development costs because maintenance lasts longer and involves many small changes.

C Maintenance costs are negligible compared to development because maintenance is only minor bug fixes.

D Development and maintenance costs are usually equal because they require the same effort.

💡 Hint

Consider how long each phase lasts and what activities each includes.

Maintenance spans many years and includes fixing bugs, adapting to changes, and adding features, often costing more than the initial build.