Software reengineering in Software Engineering - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

What is the primary goal of software reengineering?

Software reengineering involves modifying existing software. What is its main purpose?

A To reduce the number of users of the software

B To develop new software from scratch

C To replace software hardware components

D To improve software maintainability and extend its life

💡 Hint

Think about why companies update old software instead of discarding it.

The main goal of software reengineering is to improve the software's structure and maintainability so it can be used longer and adapted more easily.

📋 Factual

intermediate

Which activity is NOT part of software reengineering?

Identify the activity that does NOT belong to software reengineering processes.

A Forward engineering to build new software from requirements

B Reverse engineering to understand existing code

C Code restructuring to improve readability

D Data reengineering to improve database design

💡 Hint

Software reengineering works on existing software, not starting fresh.

Forward engineering is creating new software from scratch, which is outside the scope of reengineering that focuses on existing systems.

🔍 Analysis

advanced

Analyzing the impact of reengineering on software quality

How does software reengineering typically affect software quality?

A It usually decreases quality due to introducing new bugs

B It improves quality by cleaning and updating the codebase

C It has no effect on software quality

D It only improves performance but not quality

💡 Hint

Consider what happens when old, messy code is cleaned up.

Reengineering improves software quality by restructuring code, fixing defects, and making it easier to maintain and extend.

❓ Comparison

advanced

Comparing reverse engineering and forward engineering

Which statement correctly compares reverse engineering and forward engineering in software reengineering?

A Both reverse and forward engineering are used to write new code from scratch

B Reverse engineering creates new software; forward engineering analyzes existing software

C Reverse engineering extracts knowledge from existing software; forward engineering builds software from specifications

D Forward engineering is part of reengineering; reverse engineering is not

💡 Hint

Think about the direction of each process: from code to design or design to code.

Reverse engineering means understanding existing software by extracting design or requirements, while forward engineering means creating software from those specifications.

❓ Reasoning

expert

Why is documentation important in software reengineering?

Choose the best reason why documentation is critical during software reengineering.

A It helps new developers understand the existing system and reduces errors

B It replaces the need to test the software after changes

C It slows down the reengineering process and should be avoided

D It is only useful for marketing the software

💡 Hint

Think about how clear information helps teams work better on old software.

Good documentation provides clear understanding of the system, which helps developers make safe changes and maintain the software effectively.