April 13, 2022

DBM/380 Normalized Database Design Assignment

Order ID	53563633773
Type	Essay
Writer Level	Masters
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Description/Paper Instructions

DBM/380 Normalized Database Design Assignment

Normalized Database Design

DBM/380 v14

Page 3 of 4

Normalized Database Design

Instructions:

Read the business scenario on page 3. The scenario is communicated in the form of an order form from Brewton Enterprises, Inc.

Create an ERD that represents the data and data relationships associated with the business scenario. Strongly consider sketching a first draft of the ERD on paper first; following the instructions that begin with step 3 below to normalize the design; making any necessary changes to your on-paper ERD; and then creating your final ERD in a software application such as Microsoft® Visio®, Lucidchart, Microsoft® PowerPoint®, or another software tool of your choice.

Fill out the normalization table on page 4.

Begin by defining un-normalized form (UNF).
Consider all of the nouns that appear in the business scenario. Decide which of these nouns should be fields in the database you will be designing. What nouns need to be identified, stored, and tracked in this particular business scenario? The nouns you identify are what you will list in the UNF column. The nouns you list in this column are all the potential field names you are considering to include in the yet-to-be-identified entity/entities.

For example, in an educational scenario, some things (nouns) that typically need to be identified/stored/tracked include student name, student ID, student standing, all of the classes a student takes, all of the teachers that teach the classes, and so on.

In the UNF column, designate any field names that seem to uniquely identify a person, place, or thing (noun) by typing an asterisk next to that field name. These are your potential keys. ID numbers (such as student IDs, order IDs, and social security numbers) that are unique to a specific individual, transaction, or other noun make good keys.

For example, field names that can hold the same value in different situations (such as “John Smith” or “freshman”) are not unique and therefore not suitable for keys.

iii. Also in the UNF column, designate any field names that seem to represent repeating values. Use a closing parenthesis “)” to designate repeating values.

For example, students typically take many classes, so in an educational scenario where “student ID” is a key, “class name” is an example of a repeating value. Because one customer can place many orders, in a business scenario where “customer ID” is a key, “order” is an example of a repeating value.

Also in the UNF column, for any group of repeating values you have identified (the values you marked with a parenthesis), identify the key, or unique identifier, for that group of repeating values. Type an asterisk next to the key associated with each group of repeating values.

For example, in an educational setting that has repeating values of “class name,” “class ID,” and “class instructor,” “class ID” would be a suitable unique identifier/key. In a business scenario that has repeating values of “order,” “order ID” would be a suitable unique identifier/key.

Apply the first normal form rule. 1NF states that each group of related field names should have a unique identifier (primary key), and each field name should represent one and only one value and contain no repeating groups. The result of applying 1NF to the field names in the UNF column will be a grouping of related fields and a repetition of one or more keys.

For example, you may find you will move all of the fields designated with a parenthesis in the UNF column to the 1NF column and then repeat the key in both columns. The key you repeat will be considered the primary key in the UNF column and the foreign key in the 1NF column. In an educational scenario, you might retain the primary key “class ID” in the UNF column; move all of the fields marked with a parenthesis that have to do with classes to the 1NF column; and repeat the “class ID” field in the 1NF column. This repetition allows you to “match” the value of a primary key to the value of a foreign key and relate the eventual data groups/entities/tables.

Apply the second normal form rule. 2NF states that any non-key field must be dependent on the entire primary key. Conceptually, this means that any non-key field must be able to be located uniquely, based on concatenated or compound keys if necessary. The result of applying 2NF to the field names in the 1NF column is typically groups split apart into smaller groups with additional (and repeated) keys.
Identify sensible entity names for each group of fields. The result of applying this last step to the groups of related field names in the 3NF column is one entity name listed in the Entity Name field for each group.

For example, if the 3NF column contains groups of fields related to customers, orders, and sales reps, sensible entity names may be Customer, Order, and Sales Representative, respectively. If the 3NF column contains groups of fields related to students, classes, and teachers, sensible entity names might be Student, Class, and Teacher. Because each entity will eventually be implemented as a relational table, take a moment at this point to double-check that each group in the 3NF form that corresponds to an entity name (that is, each eventual table) contains one primary key. If tables are related, they must have a second foreign key that matches the primary key of the table(s) to which they relate

Brewton Enterprises, Inc. Order Form

Order number: 1234

Order Date: 5/12/18

Customer number: 9876

Customer name: John Doe

Customer address: 456 Bishop Street Honolulu, Hawaii 96813

Tel: (808) 8650990

Sales agent: Lloyd Johnson

Sales agent number: S99

Product No.	Description	Quantity	Unit Price

Normalization of Brewton Enterprises, Inc. Order Form (Brewton Business Scenario)

UNF	1NF	2NF	3NF	Entity Name
Product_No.	Product_No.	Product_No.	Product_No.	Product
Description	Description	Description	Description	Product List
Quantity	Order	Order	Order	Orders
			Order_ID
			Order_Date
Unit_Price	OrderLine	OrderLine	OrderLine	Ordered Items
			ID
			Quantity
	Customer	Customer	Customer
	ID	ID	ID
	Name	Name	Name
	Quantity	Quantity	Quantity	Product Quantity

ERD diagram

RUBRIC

QUALITY OF RESPONSE	NO RESPONSE	POOR / UNSATISFACTORY	SATISFACTORY	GOOD	EXCELLENT
Content (worth a maximum of 50% of the total points)	Zero points: Student failed to submit the final paper.	20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking.	30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking.	40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete.	50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing.
Use of Sources (worth a maximum of 20% of the total points).	Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper.	5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6^th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper.	10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6^th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources.	15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6^th Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources.	20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6^th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment.
Grammar (worth maximum of 20% of total points)	Zero points: Student failed to submit the final paper.	5 points out of 20: The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors	10 points out 20: The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors	15 points out of 20: The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage.	20 points: The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free.
Structure of the Paper (worth 10% of total points)	Zero points: Student failed to submit the final paper.	3 points out of 10: Student needs to develop better formatting skills. The paper omits significant structural elements required for and APA 6^th edition paper. Formatting of the paper has major flaws. The paper does not conform to APA 6^th edition requirements whatsoever.	5 points out of 10: Appearance of final paper demonstrates the student’s limited ability to format the paper. There are significant errors in formatting and/or the total omission of major components of an APA 6^th edition paper. They can include the omission of the cover page, abstract, and page numbers. Additionally the page has major formatting issues with spacing or paragraph formation. Font size might not conform to size requirements. The student also significantly writes too large or too short of and paper	7 points out of 10: Research paper presents an above-average use of formatting skills. The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment.	10 points: Student provides a high-caliber, formatted paper. This includes an APA 6^th edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper.

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DBM/380 Normalized Database Design Assignment

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DBM/380 Normalized Database Design Assignment

DBM/380 Normalized Database Design Assignment

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