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
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 $5.17. You're not tied to anything after your purchase.
