100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary Level 3 IT Unit-5 Data Modelling Learning aim A (Distinction level work) £3.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. PEARSON (PEARSON)
  4.  
  5. Information Technology 2016/2017 NQF
  6.  
  7. Unit 5 - Data Modelling

Summary

Summary Level 3 IT Unit-5 Data Modelling Learning aim A (Distinction level work)

1 review
 15 purchases

Distinction level work for the level 3 IT Unit 5 Spreadsheet/ Data Modelling unit part A. Most of the content is in the notes section of each slide.

Preview 6 out of 45  pages

Document information

  • August 6, 2023
  • 45
  • 2022/2023
  • Summary

Subjects

Written for

All documents for this subject (73)

1  review

review-writer-avatar

By: tenisun81 • 1 year ago

This did not help me at all

Seller

avatar-seller
jaylagreen

Reviews received

Content preview

Unit 5
Data
Modelling
Investigating data modelling and
how it can be used in the
decision-making process


Part A

,Contents:
 What is a data model? 5
The Stages in the Decision-Making 6
Process 7
 Why is understanding the scenario important? 8
 Identifying the information and sources 9
 Factors affecting the quality of information 10
 Analysing the information 11
 Identifying alternatives 4 12
 Consequences of alternatives 13
 Making a decision 14
 Justifying the decision 15
 Communicating the decisions to others 16
Spreadsheet Features used to support 17
data modelling 18
 Entering and editing data 19
 Formatting Data 20
 Formulas 23
 Functions
 Validation and Verification

,Contents:
 Analysing and Interpreting Data 24
 Presenting Data 25
 Using Data Modelling to Consider 26
Alternatives 27
 Identifying the Inputs Required 28
 The Range of Outputs Produced 29
 Benefits and Limitations of Alternate Solutions 30
 Impacts and Consequences of each Solution 4 31
 Identifying the Solution that Produces the Best 32
Decision 33
 Evaluating Models 34
 Factors to consider when evaluating the model 35
 How well the model reflects the Scenario 36
 Decisions that can be made using the Model 37
 Whether the Model can be Improved 38
 Other Factors 39
 Documenting and Justifying Decisions 40
 Requirements for Documenting and Justifying the
Model
 Summarising the Situation

,Contents:
v Identifying Information Sources 41
v Indicating Factors Considered 42
 Methods used to Research Decisions 43
 Justifying Choices 44
 Sources 45


4

,Introduction
What is a data model?
A data model is used by a company to represent data.
Data models mimic real life situations where
business decisions need to be made.
The 3 key types of data modelling are:
Conceptual

Logical

Physical

, The Stages in
the Decision-
Making Process

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 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 jaylagreen. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £3.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

65004 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 15 years now

Start selling

Recently viewed by you

Lecture notes ·

(0)

Psy 1004F; Psychology of learning Notes

Exam (elaborations) ·

(0)

Arterial Blood Gas Interpretation questions with correct answers
£3.99  15x  sold
  • (1)
Add to cart
Added