Part B – Conceptual Data Modelling

Part B – Conceptual Data Modelling

B.1 Overview of Case Study

Steam is a video game business developed by Valve’s online platform for the purchase and distribution of games and other products. To identify users and assign the games and software they purchase/download to their unique account profile/steam library, the Steam DBMS should employ an account-based approach. The Steam system also allows a community of users to exchange in-game goods saved on their user accounts for other items, in-game cash, or real-world currency with one another.

B.2 Revised Business Rules

1. An email address can only create one steam account; therefore, accounts can be uniquely identified by their email address (or Steam id).

2. An account can only have one steam library, wish list and cart.

3. Applications must have at least one content tag and must have an age rating.

4. A developer can push an application to the store without a publisher, but if a publisher pushes an application to the store, they must include the developer.

5. When a user downloads or purchases an application, said application must be added to the user’s steam library, no matter if the application is paid or free.

6. A user can manage their wish list and cart freely, adding or removing applications from them. However, they cannot manage their steam library.

7. While 2 factor authentication is recommended, it is by no means necessary, meaning the phone number attribute is only optional.

8. Users can have multiple items stored inside their steam library, and duplicate items are also allowed.

9. A user’s steam library, wish list and cart can contain multiple or no applications

10. A developer can have multiple published applications within the store

11. A publisher can have multiple games released under their name

12. A publisher may have multiple works of different developers

13. When launching an application, the steam library of the user should be referenced to ensure they own the application.

14. An application can be owned by multiple different accounts, meaning an application can be a part of many different steam libraries, wish lists and carts.

15. Publishers are uniquely identified by a Publisher ID, and publisher accounts cannot be created through a form, but should rather directly contact steam to set up a publisher account.

16. Developers can be identified by a Steam ID or Developer ID.

B.3 ERD Diagram

B.4 Justifications of ERD

Business Rules Related to Entity User:

● BR1: For the user, the email address provided is unique during account creation, which will also supply a distinctive ID from steam, so it can identify and distinguish other users.

● BR7: The user can have the option to either input their phone number for 2 factor authentications or not. Value of the phone number can be NULL or NOT NULL, depending on the user

NOTE: This entity acts as a Supertype of the subtype entity for Developer.

Business Rules Related to Entity Cart:

● BR2: Cart must only be assigned to ONLY one user(cardinality 1 to 1)

● BR5: When a purchase is complete, application will be removed from cart towards the steam library of the user.

● BR6: The user must be able to freely manage the cart, adding and removing applications, as well as purchasing them

Note: This acts as an associative entity between the user and the application.

Business Rules Related to Entity Wish List:

● BR2: Wish list must only be assigned to ONLY one user (cardinality 1 to 1)

● BR6: The user must be able to freely manage the wishlist, adding and removing applications as they want

Note: This acts as an associative entity between the user and the application.

Business Rules Related to Entity Steam Library:

● BR2: Steam library must only be assigned to ONLY one user (cardinality 1 to 1)

● BR5: A user’s purchased/downloaded programme is automatically added to the user’s steam library and is identifiable by its application ID within the system.

● BR6: Users cannot manage their Steam library.

● BR8: A steam library can contain many items, which are identified by the application they are related to. (cardinality 0 to many)

● BR9: The steam library can contain many applications or no applications (cardinality 0 to many)

NOTE: This acts as an associative entity between the user and the application.

Business Rules Related to Entity Application:

● BR3: At least one content tag and an age rating are required in an application. (cardinality 1 to many)

● BR4: The application can have no publisher or a publisher who is also the developer, but it cannot have a publisher who is also the developer. (i.e. developer cannot be NULL, but publisher can be NULL)

● BR14: An application can be owned by many different users (steam libraries). (cardinality 0 to many)

Business Rules Related to Entity Developer:

● BR12: A developer can push multiple applications to the store. (cardinality 1 to many)

● BR16: A developer can be identified by a developer ID, but is primarily identified by their user ID internally.

NOTE: This entity acts as a subtype for the user entity supertype

Business Rules Related to Entity Publisher:

● BR11: Under their name, a publisher can have zero or more applications published. (cardinality 0 to many)

● BR12: A publisher is not tied to a particular developer, which means that he or she can publish many apps from various developers.–

● BR15: You must contact Steam directly to create a publisher account, as there should be no need for the general public to require one.

Order Now
Universal Assignment (February 1, 2023) Part B – Conceptual Data Modelling. Retrieved from https://universalassignment.com/part-b-conceptual-data-modelling/.
"Part B – Conceptual Data Modelling." Universal Assignment - February 1, 2023, https://universalassignment.com/part-b-conceptual-data-modelling/
Universal Assignment July 31, 2022 Part B – Conceptual Data Modelling., viewed February 1, 2023,<https://universalassignment.com/part-b-conceptual-data-modelling/>
Universal Assignment - Part B – Conceptual Data Modelling. [Internet]. [Accessed February 1, 2023]. Available from: https://universalassignment.com/part-b-conceptual-data-modelling/
"Part B – Conceptual Data Modelling." Universal Assignment - Accessed February 1, 2023. https://universalassignment.com/part-b-conceptual-data-modelling/
"Part B – Conceptual Data Modelling." Universal Assignment [Online]. Available: https://universalassignment.com/part-b-conceptual-data-modelling/. [Accessed: February 1, 2023]

Please note along with our service, we will provide you with the following deliverables:

Please do not hesitate to put forward any queries regarding the service provision.

We look forward to having you on board with us.

Get 90%* Discount on Assignment Help

Most Frequent Questions & Answers

Universal Assignment Services is the best place to get help in your all kind of assignment help. We have 172+ experts available, who can help you to get HD+ grades. We also provide Free Plag report, Free Revisions,Best Price in the industry guaranteed.

We provide all kinds of assignmednt help, Report writing, Essay Writing, Dissertations, Thesis writing, Research Proposal, Research Report, Home work help, Question Answers help, Case studies, mathematical and Statistical tasks, Website development, Android application, Resume/CV writing, SOP(Statement of Purpose) Writing, Blog/Article, Poster making and so on.

We are available round the clock, 24X7, 365 days. You can appach us to our Whatsapp number +1 (613)778 8542 or email to info@universalassignment.com . We provide Free revision policy, if you need and revisions to be done on the task, we will do the same for you as soon as possible.

We provide services mainly to all major institutes and Universities in Australia, Canada, China, Malaysia, India, South Africa, New Zealand, Singapore, the United Arab Emirates, the United Kingdom, and the United States.

We provide lucrative discounts from 28% to 70% as per the wordcount, Technicality, Deadline and the number of your previous assignments done with us.

After your assignment request our team will check and update you the best suitable service for you alongwith the charges for the task. After confirmation and payment team will start the work and provide the task as per the deadline.

Yes, we will provide Plagirism free task and a free turnitin report along with the task without any extra cost.

No, if the main requirement is same, you don’t have to pay any additional amount. But it there is a additional requirement, then you have to pay the balance amount in order to get the revised solution.

The Fees are as minimum as $10 per page(1 page=250 words) and in case of a big task, we provide huge discounts.

We accept all the major Credit and Debit Cards for the payment. We do accept Paypal also.

Popular Assignments

Assessment 4: Tableau Dashboard and Report

Issued:                Monday of Week 4 Due:                     11:59PM (local Time) Wednesday of Week 7 Weight:                60% Report Length: 1500 – 4000 words + Tableau *.twbx file Overview During this assessment you will produce an interactive Tableau Dashboard and an accompanying report detailing the planning of the Tableau Dashboard. Background Tableau dashboards

Read More »

Assessment 3: Critical Review of a Tableau Dashboard

Issued:                Monday of Week 1 Due:                     11:59PM (local Time) Sunday of Week 5 Weight:                20% Length:               5-10 minutes (approx. 500-3000 words) Overview During this assessment you will produce a video presentation critically reviewing a Tableau dashboard from a design planning and communication perspective. Background Tableau dashboards are used extensively for

Read More »

Wireless Communication Engineering Assignment Help

Looking for Wireless Communication Engineering Assignment Help? If you are looking for wireless communication engineering assignment help, just get it quickly online! The good news is that you no longer need to chase your professors around with confusion about assignments. Nor do you have to stress out as chase that

Read More »

Assessment 2: Planning and Creating Static Visualisations

Due:                     11:59PM (local Time) Sunday of Week 3 Weight:                20% Length:                1000-2500 words Overview During this assessment you will produce written report detailing the planning and creation of three static visualisations derived from a data table. In this assessment, the quality of the presented visualisations is not assessed, only the

Read More »

Nursing Healthcare Case Study Assignment Help

ASSESSMENT ITEM 2: DESCRIPTION Shared decision-making is a model for clinical practice which includes patients’/clients’ values and preferences and supports them to make decisions about their own care and treatment options in collaboration with their healthcare team (Geddis-Regan et al., 2020). A patient’s/client’s culture affects the way they understand health

Read More »

BSBCRT311 Apply Critical Thinking Skills in a Team Environment

Table of Contents Table of Contents…………………………………………………………………………………………………………………. 3 About the Business Services Training Package…………………………………………………………………………………………………………………. 4 About this Unit of Competency……………………………………………………………………………………………………………… 6 Chapter 1: Prepare to Address Workplace Problem…………………………………………………………………………………………………………………. 7 ………………………………………………………………………………………………………………………………………… 8 Key Points: Chapter 1…………………………………………………………………………………………………………….. 30 Chapter 1 – ‘True’ or ‘False’ Quiz……………………………………………………………………………………………………………. 31 Chapter 2: Evaluate Solutions for Workplace Problem…………………………………………………………………………………………………………………

Read More »

BSBCRT311 Apply critical thinking skills in a team environment

WORKPLACE PROJECT TASK   Student details  Student name  Student email address  Assessment Details  About this task  This workplace project requires you to use critical thinking to resolve two typical problems in the workplace.   This assessment includes the following tasks:  Task 1: Workplace Problems  Task 2: Self-reflection  You will need 2 participants who

Read More »

BSBCRT512 Originate and Develop Concepts

Contents Section 1: Scoping a relevant issue. 5 Section 2: Generating and evaluating solutions. 8 Section 3: Concept finalisation. 11 Student name:   Assessor:   Date:   Business or Community/Social group this assessment is based on:   Documentation reviewed as preparation:   Job role assumed for this assessment:   Section

Read More »

EMS5RCE – Risk Engineering (2022)

Assignment 2 Due Date: 13th February 2023, 23:59PM 1        Outline You have been tasked to evaluate the risks associated with moving from a traditional construction method for constructing concrete formwork (such as precast), to an advanced method that will be designed to take advantage of additive and/or automated and digital

Read More »

NIT3171 ICT Business Analysis & Data Visualization

Individual Assignment – Business Analysis Case Study (Stage II – 35 marks weighing 35%) Report Submission Date (through the dropbox): (10% will be deducted for each day of delay) Presentation (5 minutes each) 10 Marks: In this assignment, a Melbourne housing dataset is given to you to apply data mining

Read More »

HSC ECONOMICS The Global Economy

HSC ECONOMICS  Assessment Notification: Task 1 Subject: Economics Topic The Global Economy Nature of Assessment Task Oral presentation with a written component Weighting 25% Teacher Ms R Ali Date of Notification Term :4 Week 5A  (2022) Due Date Term 1 (2022), Week 7A,Friday (written component) and Week 8B(Oral component)  

Read More »

Behaviour & Environment Case Study

Section 1: Overview of Issue of Human-Environment Relations & Proposed Intervention (Delete this and enter your text for this section here) Section 2: Identify all key stakeholders: (Delete this and enter your text for this section here) Section 3: Explain how the Intervention Strategy should be implemented (Delete this and

Read More »

Assignment BMSC Pharmacology Breakdown

  Section Word Limit Marks Research Time Writing Time Description Clarity N/A 5 10 mins 1 hr sentence structure; typographical errors; scientific style Reference N/A 5 20 mins 40 mins correct use of referencing style and in text citations; typically 5-10 references depending on the topic/experimental platform and drugs used

Read More »

Assessment Task 3: Portfolio Output 3

This task requires you to create a blog post and a 3-4 minute edited video that critically and creatively responds to one of the Digital Media Contexts from weeks 7-10 (this must be a different topic from what you chose for Portfolio Output 2). Your video is to be embedded

Read More »

Formulae Sheet

Formulae Sheet Current ratio Current assets Current liabilities     Quick ratio or acid test Cash + marketable securities + net receivables Current liabilities     Current cash debt coverage Net cash provided by operating activities Average current liabilities     Receivables turnover Net sales Average net trade receivables  

Read More »

Cashflow and Financial Analysis

Assessment Task: 20% Cashflow and Financial Analysis – Template IMPORTANT:  Preparing the cashflow statement and financial analysis template. The template is prepared to satisfy all the assignment business’s so there may be extra line items in the template. To submit the cash flow statement, you need to use the template

Read More »

Cashflow and Financial Analysis – Ship’em In&Out

Assessment Task: 20% Cashflow and Financial Analysis – Ship’em In&Out IMPORTANT:  Preparing the cashflow statement and Financial analysis To submit the cash flow statement, you need to use the template document in CANVAS. The template is prepared to satisfy all the assignment business’s so there may be extra line items

Read More »

Pros and Cons of Chat GPT Assignment Help

How great is Chat GPT Assignment Help? Chat GPT Assignment help is definitely an incredible possibility for students. It is a technological advancement that can generate essays and articles on a massive range of topics. Moreover, you can just ask any question, and you will get your answer right away.

Read More »

Question 10 – REPORTS

Complete the table below, by listing three types of financial reports that are produced in your workplace. Type of Report Content of Report Frequently of Report                  

Read More »

Question 9 – BUSINESS RECORDS

Work through the following table and indicate whether each record should be kept or destroyed. Detail the reason for your answer and how long the record should be kept (for example, legislation requirement – retain for five years). Record Keep – Yes or No Reasons Suppliers Invoices     Employee

Read More »

Question 6 – BUSINESS ACTIVITY STATEMENT

Using the following information, complete the Business Activity Statement, you may need to refer to the ATO website to help you complete. Download and complete the Business Activity Statement (BAS). It can be found separately on the course page.

Read More »

Question No 5 – BREAKEVEN ANALYSIS & MOVING

AVERAGE Activity 5.1 – Break-even Answers A. B.   Manage 8 Buildings Manage 10 Buildings Manage 15 Buildings Manage 20 Buildings Manage 25 Buildings Income           Less Variable Costs           Less Fixed Costs           Total Cost    

Read More »

Question 3 – Depreciation

You are the Licensee-In-Charge of Hope & Murphy Real Estate and wish to purchase computers for your new office in the CBD. Using the information below: Office fit out                      $120,000 Assets effective Life          4 years Purchase Date                  1st July STRAIGHT-LINE METHOD CALCULATION Years 1 to 4 – JOURNAL ENTRIES DEPRECIATION                                               

Read More »

Question 1 – PROFIT & LOSS AND BALANCE SHEET

Please note: Editing has been restricted in this document. From the information provided below, complete the following table: Account Name Classification Profit & Loss or Balance Sheet Amount Pay Superannuation Expense Profit & Loss $117,325 Pay Mobile Phone     $7,500 Pay Office Rent     $65,000 Land & Buildings

Read More »

Case Study – WORLDUCATION

Worlducation is a social startup that manufactures tablet computers for primary school students. They not only focus on the hardware, but they also have a competitive team creating software, content and activities to better engage and educate the students. Worlducation aims to change the way children learn at school by

Read More »

Can't Find Your Assignment?

Open chat
1
Free Assistance
Universal Assignment
Hello 👋
How can we help you?