Legacy system modernization in Software Engineering - Mini Project: Build & Apply

Legacy System Modernization

📋 What You'll Learn

💡 Why This Matters

🌍 Real World

Modernizing legacy systems helps companies improve performance and maintainability without stopping their business operations.

💼 Career

Understanding how to plan and prioritize legacy system updates is important for software engineers, project managers, and IT professionals working in system maintenance and modernization.

1

Identify Legacy System Components

Create a list called legacy_components with these exact strings: 'Order Processing', 'Inventory Management', 'Customer Database', 'Reporting Module'.

Software Engineering

# Create the list legacy_components with the specified components
# Your code here

Need a hint?

Use square brackets to create a list and include all four component names as strings.

2

Set Modernization Priority

Create a dictionary called priority_levels that assigns these exact priorities: 'Order Processing' to 1, 'Inventory Management' to 2, 'Customer Database' to 3, and 'Reporting Module' to 4.

Software Engineering

legacy_components = ['Order Processing', 'Inventory Management', 'Customer Database', 'Reporting Module']
# Create the dictionary priority_levels with the specified priorities
# Your code here

Need a hint?

Use curly braces to create a dictionary with component names as keys and numbers as values.

3

Select Components to Modernize

Create a list called to_modernize that includes components from legacy_components with a priority less than or equal to 2 using a list comprehension with priority_levels.

Software Engineering

legacy_components = ['Order Processing', 'Inventory Management', 'Customer Database', 'Reporting Module']
priority_levels = {'Order Processing': 1, 'Inventory Management': 2, 'Customer Database': 3, 'Reporting Module': 4}
# Create the list to_modernize with components having priority <= 2
# Your code here

Need a hint?

Use a list comprehension to filter components by checking their priority in the dictionary.

4

Complete Modernization Plan

Create a boolean variable called modernization_complete and set it to True to mark the modernization as finished.

Software Engineering

legacy_components = ['Order Processing', 'Inventory Management', 'Customer Database', 'Reporting Module']
priority_levels = {'Order Processing': 1, 'Inventory Management': 2, 'Customer Database': 3, 'Reporting Module': 4}
to_modernize = [component for component in legacy_components if priority_levels[component] <= 2]
# Set modernization_complete to True
# Your code here

Need a hint?

Simply assign the value True to the variable modernization_complete.