Practice Fundamental Rules And Conventions Of Dfds (7.3) - Software Design Principles and Structured Analysis
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Fundamental Rules and Conventions of DFDs

Practice - Fundamental Rules and Conventions of DFDs

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does a 'Black Hole' represent in a DFD?

💡 Hint: Think about what happens to data.

Question 2 Easy

What do we call a process that generates output without input?

💡 Hint: Consider what it means for data generation.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What defines a 'Black Hole' in a DFD?

A process with outputs only
A process with only inputs
A process that transforms data

💡 Hint: Consider what happens to input data in a process.

Question 2

True or False: In a DFD, data stores can interact directly with external entities.

True
False

💡 Hint: Think about the structural flow of data.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a DFD for an online bookstore, clearly showing processes, data stores, and external entities while adhering to the black hole and miracle rules.

💡 Hint: Make sure all processes produce outputs!

Challenge 2 Hard

Evaluate a provided DFD and identify any rules that are violated regarding data flow, black holes, and miracles.

💡 Hint: Look for any processes that don't clearly show input-output relationships.

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Reference links

Supplementary resources to enhance your learning experience.