100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Systems Analysis and Design Chapter 5 Guaranteed A+ $9.49   Add to cart

Exam (elaborations)

Systems Analysis and Design Chapter 5 Guaranteed A+

 2 views  0 purchase
  • Course
  • Systems Analysis and Design Chapter 5 Guaranteed
  • Institution
  • Systems Analysis And Design Chapter 5 Guaranteed

Systems Analysis and Design Chapter 5 Guaranteed A+ Data and Processing Modeling Overview 1. Deliverable of Data and Processing Modeling - The Logical Model: Represents the structured design and organization of data. 2. Three Main Tools of Data and Process Modeling - Data Flow Diagrams (D...

[Show more]

Preview 1 out of 3  pages

  • September 9, 2024
  • 3
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Systems Analysis and Design Chapter 5 Guaranteed
  • Systems Analysis and Design Chapter 5 Guaranteed
avatar-seller
CertifiedGrades
Systems Analysis and Design Chapter 5 Guaranteed A+
Data and Processing Modeling Overview



1. Deliverable of Data and Processing Modeling

- The Logical Model: Represents the structured design and organization of data.



2. Three Main Tools of Data and Process Modeling

- Data Flow Diagrams (DFD): Visual representations of the flow of data within a system.

- Data Dictionary: A repository that defines the data elements used in the modeling process.

- Process Descriptions: Detailed documentation of the operations and logic in a process.



3. Four DFD Symbols

- Process Symbols: Represent processes that transform inputs into outputs.

- Data Flow Symbols: Indicate the flow of data between entities, processes, and data stores.

- Data Store Symbols: Show where data is stored within the system.

- Entity Symbols: Represent external entities that interact with the system.



4. Three Types of Data Flow and Data Processing Combinations to Avoid

- Spontaneous Generation: Outputs from a process without any inputs.

- Black Hole: Inputs to a process without any outputs.

- Gray Hole: Inputs to a process that would not sufficiently produce the outputs.



5. Description of Spontaneous Generation

- Outputs from a process without any inputs: This indicates a lack of input resources leading to
outputs, suggesting incorrect modeling.



6. Description of Black Hole

- Inputs to a process without Outputs: This reflects a scenario where data enters a process but does
not produce any results.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller CertifiedGrades. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $9.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79271 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$9.49
  • (0)
  Add to cart