Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

10 Questions

2 Views

Systems Analysis: Data Flow Diagrams

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the minimum number of input data-flows and output data-flows required for a data store?

Two inputs, two outputs

One input, one output (correct)

Multiple inputs, one output

One input, multiple outputs

What is the purpose of a context diagram?

To show data storage only

To show one process, representing the entire system (correct)

To show external entities only

To show multiple processes, not representing the entire system

What is the notation used to show data flows in a data flow diagram?

Only Yourdon

Only Gane & Sarson

Several notations, including Yourdon, De Marco, Gane & Sarson, and SSADM (correct)

Only Unified Modeling Language

What is the process number assigned to the context diagram?

0 Signup and view all the answers

What is the purpose of examining the data flow to or from a data store?

To identify fuzzy areas Signup and view all the answers

What is the purpose of working backward from an output data flow?

To examine the data flow from an entity on the input side Signup and view all the answers

What is the maximum number of processes that can be included in a level?

9 Signup and view all the answers

What is not included in a context diagram?

Data storage Signup and view all the answers

What is the purpose of analyzing a well-defined process?

To understand how a process works Signup and view all the answers

What is an example of an external entity in a data flow diagram?

Mother Signup and view all the answers