Program Design Concepts
Designing programs that perform system logic is challenging and varied. Analysts must define instructions for programs that describe how to covert the ideas depicted in logical models into actual code and programming logic. Structure charts are one technique that describes a program at a high level. This assessment asks you to explain key concepts associated with program design. Write a short essay response to each of the following questions.
Module Outcomes practiced in this assessment:
Revise logical data flow diagrams into physical data flow diagrams.
Describe features of structure charts.
Develop Program Specifications.
Include a title page and reference page.
Written work is provided in Standard English.
Provide a header for each question and answer.
Each question should include at least one APA reference and inline citation.
At least 3 pages in length, not counting the title page and reference page.
What is the purpose of creating a logical process model and then a physical process model? How are they different? What information is found on the physical DFD that is not included on the logical DFD?
List the steps necessary transform logical models to physical models.
Define a structure chart and explain the importance of sequence, selection, and iteration.
Provide an example of a structure chart you have found online (citation necessary). Explain the purpose of this chart.
What does a data couple depict on a structure chart? What symbols are used to depict it? What does a control couple depict on a structure chart? What symbols are used to depict it?
List the seven types of coupling. Give an example of good coupling and an example of bad coupling.
What is meant by the characteristics of fan-in and fan-out?
Discuss three ways to improve the quality of a structure chart.
Module 4 Assessment Part 3: Entity Relationship Diagram
Module Outcomes practiced in this assessment:
Validate data models.
Describe the process of normalization.
Create an entity relationship diagram.
Entity Relationship Diagrams are used to help show how information in a system is organized. This assessment will have you analyze data from a business situation, construct an ERD, and explain process of normalization and reasons when denormalization may be important.
Assessment Instructions and Requirements
Avery’s gym has partnered with a partner physical therapy business to provide treatment for some of its gym members. Gym members have the option to participate in special physical therapy sessions.
The main feature of this partnership provides gym members with the options to participate in physical therapy sessions. Each Physical Therapy Session must include a gym member, a trainer, and a therapist. Each session generates a unique Claim. Sessions also need to record the date, time and purpose of the sessions. Physical therapy sessions are billed back to insurance and claims must be filed with each physical therapy session.
You have been tasked with developing an Entity Relationship Diagram to help show this part of the larger gym system. You have also been asked to explain the importance of both normalization and denormalization of data structures.
You have been given a report as an example of some of the information generated by the system, and the file contains the following fields. Hint: unique IDs may need to be created to correctly generate the data model.
Physical Therapy Session
Insurance Plan details
Insurance Claim Number
Complete the following tasks:
Normalize the data. Organize the information into data fields appropriate for a relational database. Analyze the information provided and normalize the data to create a database model.
Based on that information construct an ERD. Use Visio. Identify primary and foreign keys. For each entity, develop appropriate and thorough attributes. Use crow’s feet to show relations between entities.
Explain the importance of normalization: provide a summary of the steps necessary for each 1NF, 2NF, 3NF and importance. A minimum of 120 words is expected.
Explain denormalization and explain the main reasons for it. A minimum of 60 words is expected.
Directions for Submitting Your Assessments
Name your Word document with the following convention: IT460_Module4Part1A-B-LastName-FirstName (using your own name).
Name your Word document with the following convention: IT460_Module4Part2-LastName-FirstName (using your own name).
Name your Word document with the following convention: IT460_Module4Part3-LastName-FirstName (using your own name).
Make sure you read all instructions carefully and review the grading rubric before submitting to the Dropbox.
Minimum Submission Requirements
Proper notification of any resubmission, repurposing, or reworking of prior work per the Purdue Global Student Coursework Resubmission, Repurposing, and Reworking Policy Resource.
This assessment should be a Microsoft Word (minimum 350 words) document, in addition to the title and reference pages.
Respond to the questions in a thorough manner, providing specific examples of concepts, topics, definitions, and other elements asked for in the questions. Your submission should be highly organized, logical, and focused.
Your submission should provide a clearly established and sustained viewpoint and purpose.
Your writing should be well ordered, logical, and unified, as well as original and insightful.
Your submission must be written in Standard English and demonstrate exceptional content, organization, style, and grammar and mechanics.
A separate page at the end of your submission should contain a list of references in APA format. Use your textbook, the Library, and the internet for research.
Be sure to include references for all sources and to cite them using in-text citations where appropriate. Your sources and content should follow current APA citation style. Review the writing resources for APA formatting and citation found in Academic Tools. Additional writing resources can be found within the Academic Success Center.
Your submission should:
include a title page;
be typed in Times New Roman, 12 -point font; and
be free of spelling or punctuation errors.
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