Discussion Board, Fundamentals of Database Systems

 

For this Discussion Board, please complete the following:

You have been asked to design a database for CTU, which includes three entities (tables): Students, Faculty, and Courses.

Note: A course refers to a particular course section. For example, the current CS251 you are taking is one course instance (e.g., CS251-01), and another CS251 section is another course instance (e.g., CS251-02). It should also have session information (e.g., 2101A).

Discuss the following:

  • Identify 2–3 attributes for each entity, and describe the relationships between the entities.
  • To help you with the discussion above, provide a summary using the following template table: (Please see the attached photo for the template table)
  • Why is the selection of entities and attributes so important during the design phase of a database?

Needs help with similar assignment?

We are available 24x7 to deliver the best services and assignment ready within 3-4 hours? Order a custom-written, plagiarism-free paper

Get Answer Over WhatsApp Order Paper Now

Human Computer Interaction Discussion 2 and 3

Question 1: which of the interaction types do you feel most influence interface design challenges? 

After reading Chapter 3, which of the interaction types do you feel most influence interface design challenges? You are required to write a statement that is LIMITED to 150 words. This is an opinion question; therefore, research is not required. Should you cite the work of others, please provide the source of your opinion in APA format.
 

Question 2: which of the cognitive frameworks do you feel best help users determine how to complete a task and activity?

 After reading Chapter 4, which of the cognitive frameworks do you feel best help users determine how to complete a task and activity? You are required to write a statement that is LIMITED to 150 words. This is an opinion question; therefore, research is not required. Should you cite the work of others, please provide the source of your opinion in APA format. 

Needs help with similar assignment?

We are available 24x7 to deliver the best services and assignment ready within 3-4 hours? Order a custom-written, plagiarism-free paper

Get Answer Over WhatsApp Order Paper Now

Analyzing SSL packets with Wireshark Unit 5

 

IT543-4: Design an implementation of cryptographic methods for an organization.

Assignment Instructions:

Perform the lab described in the zip folder Wireshark — Capturing SSL Packets.

Follow the directions, perform the indicated instructions, and provide the requested information.

Take screenshots of each step to show that you are working through the steps.

Instructions are 

Needs help with similar assignment?

We are available 24x7 to deliver the best services and assignment ready within 3-4 hours? Order a custom-written, plagiarism-free paper

Get Answer Over WhatsApp Order Paper Now

Data and System Security

Read chapter 13 of your textbook (lecture slides under week 5), and review online library and reputable      articles/journals/online resources and write 3/4 page paper and discuss:

Q). How do you design a secure network. Discuss latest technologies to keep your network secure.

Needs help with similar assignment?

We are available 24x7 to deliver the best services and assignment ready within 3-4 hours? Order a custom-written, plagiarism-free paper

Get Answer Over WhatsApp Order Paper Now

Human computer interaction and usability

 

  1. A Usability Evaluation examines the way users interact with products and services in order to achieve a goal. Often times, there are measures that are tied to those goals that are quantified. Academic literature has a robust catalog of research on studies that examine various perspectives that explore user attitudes and experiences. Such attitudes and experiences include:

    • Learnability 
    • Findability 
    • Satisfaction 
    • Efficiency 
    • Memorability 
    • Effectiveness 
    • Ease of Use 
    • Error Handling 
    • Remember, usability is not one-dimensional. It is a complex system of properties that integrates many factors. It is subjective from user to user. For this assignment,  you are asked to explore one of these topics. You are to conduct an analytical research review of the assigned usability category/dimension above by evaluating 6-10 academic journals that focus on this topic. 

      You MUST include the following as part of the assignment. 

    • Abstract
    • Title Page
    • Introduction
    • Literature Review of Term
    • Conclusion
    • Considerations:
    • Must provide a minimum of six sources and how it was evaluated by the authors/scholars in each study
    • Must evaluate the study method used to complete the analysis.
    • Identify any unique similarities or differences across each study.
    • Define your own term based on your understanding of the literature you’ve evaluated.
    • Explain how you derive this definition.
    • Qualify/quantify the definition by explaining how many sources you used to come up with this definition.
    • Make Recommendations of Additional Ideas For Future Literature Review Consideration
    • The paper should be a minimum of 6 pages. This does not include the cover page, abstract, or citations. You must use APA format throughout the entire paper.

Needs help with similar assignment?

We are available 24x7 to deliver the best services and assignment ready within 3-4 hours? Order a custom-written, plagiarism-free paper

Get Answer Over WhatsApp Order Paper Now

SQL and Algebra discussion response

Please respond to the following discussion below with 150 words or more relating to relational algebra and its relation to SQL.

 

As a collection of algebraic structures, relational algebra was  developed at IBM by Edgar F. Codd. It is used to represent data stored  in relational databases, as well as to define queries on that data. An  instance of relational algebra may be described as a procedural query  language that employs unary or binary operators to execute queries.  Users of relational database systems must be able to query database  instances using a query language. Relational algebra or relational  calculus is used to query a relational database system. Recursive  relational algebra is done on a relation, and intermediate outcomes are  also considered relations. For Edgar F. Codd’s relational paradigm, SQL  was one of the first commercially available programming languages.  Despite the fact that they are based on similar principles, their syntax  differs. There are several advantages to relational algebra, including  its closed nature, rigorous basis, and simplicity of semantics. SQL, on  the other hand, is a subset of relational algebra with easy formatting  capabilities, aggregate functions, and a complex semantics. Below is an  example from the course readings that illustrate the difference in  syntax:

SELECT DISTINCT dname
FROM department, course, empcourse, employee WHERE cname = `Further Accounting’

AND course.courseno = empcourse.courseno AND empcourse.empno = employee.empno AND employee.depno = department.depno;

The equivalent relational algebra is

PROJECTdname (department JOINdepno = depno ( PROJECTdepno (employee JOINempno = empno (

PROJECTempno (empcourse JOINcourseno = courseno ( PROJECTcourseno (SELECTcname = `Further Accounting’ course)

)) ))

))

References:

Relational algebra – example. (n.d.). https://web.archive.org/web/20160326123806/http:/db.grussell.org/section011.html.

Relational algebra. (n.d.). https://www.tutorialspoint.com/dbms/relational_algebra.htm.

Needs help with similar assignment?

We are available 24x7 to deliver the best services and assignment ready within 3-4 hours? Order a custom-written, plagiarism-free paper

Get Answer Over WhatsApp Order Paper Now

database discussion response

 Please respond to the following discussion below with 150 words or more relating to relational algebra and its relation to SQL. 

From what I have researched, relational algebra is one of a few  different collections of mathematical formulas to manipulate data in a  relation or table. It is a procedural query language that uses relation  instances for input and relation occurrences for output (AskingLot,  2020). It is the formal description of how a database operates and a  means to interface with it to manipulate and utilize raw data (Russell,  2016). Basic relational algebra operators are select, project, union,  set difference, and Cartesian product.

SQL is the query language that is essentially the front end user  interface built upon relational algebra. Relational algebra and  relational calculus together form the base for the SQL language  (AskingLot, 2020). SQL operator inputs are translated to relational  algebra before being applied to the relation. Some basic syntax  operators for SQL are select, insert, delete, update, and create.

Examples of the differences in syntax are below:

SQL:

SELECT *attribute* FROM *table/relation/s* WHERE *condition to be met*

Relational Algebra:

PROJECT *attribute* (SELECT *condition to be met* (table/relation))

or

π *attribute* (σ *condition to be met* (table/relation))

Needs help with similar assignment?

We are available 24x7 to deliver the best services and assignment ready within 3-4 hours? Order a custom-written, plagiarism-free paper

Get Answer Over WhatsApp Order Paper Now

PhoneGap

Developing in the mobile space can be a daunting task for developers.  Developers must figure out which platforms they should support for their apps, purchase the hardware, and join the developer programs for each platform.   PhoneGap is an open source set of tools which enables developers to create mobile applications for multiple devices by utilizing the same code. It is a hybrid mobile application framework that allows the use of HTML, CSS, and JavaScript to write applications which are based on the open standards of the web.  MonoTouch and Mono for Android rely on the Mono Framework to function. Mono is a cross-platform open source implementation of the .NET Framework.  Mono is a cross-platform open source implementation of the .NET Framework. 

  • How is sharing code being one of the most appealing reasons to use MonoTouch and Mono for Android?  Explain
  • How is the use of debugging tools helpful in resolving mobile application issues quickly?

Needs help with similar assignment?

We are available 24x7 to deliver the best services and assignment ready within 3-4 hours? Order a custom-written, plagiarism-free paper

Get Answer Over WhatsApp Order Paper Now

Week 6 Course Project

 

Week 6 Course Project deliverables are due.

Create a hierarchy chart showing the logical components of your program. Modularize your code according to your chart using the practices learned this week. Your menu should now call individual modules to do the work of the program.

Examples: In the programming tutorial, add a tutorial on working with modules. Then modularize the code so that each tutorial and qu i z is in a module.

Refer the the Course Project Overview for complete details.

Remember to submit your assignment.

Needs help with similar assignment?

We are available 24x7 to deliver the best services and assignment ready within 3-4 hours? Order a custom-written, plagiarism-free paper

Get Answer Over WhatsApp Order Paper Now

Research Report

  

Option 1: Research Report / Individual Project (800 points)

Write a scholarly research report on a topic related to Software Engineering (see Appropriate Topics). Please see Important Notes and Document Details for detailed specifications. 

Appropriate Topics:

The Research Report: Select two of the following research areas providing a complete comparative analysis between the two chosen:

i) Cloud Computing (Intranet, Extranet, and Internet)

ii) Robotic Operating System

iii) Internet of Things (IoT) OS

iv) Apple iOS

v) Android

vi) Linux

vii) zOS

viii) BSD

ix) NOS

x) UNIX

Important Student Notes:

· Each student submission should be checked for plagiarism. Students should be warned that Turnitin has a very good historical memory and is capable of accessing reports from both internal and external resources (i.e. Universities, Governments, etc.) including those originally written in non-English written languages. Plagiarism will result in a grade of zero (non-negotiable) for the assignment and may results in other university actions. The department chairperson will be notified of the violation. Additional Campbellsville University penalties may be applicable. Please see class syllabus for additional details.

· Only one submission attempt is permitted – AS THE STUDENT TO BE SURE BEFORE DEPRESSING ENTER.

· Acceptable file formats for submissions include Microsoft Word (doc, docx) or Adobe Acrobat (PDF). No other formats are acceptable.

· The research paper must be at least 2,500 words supported by evidence (citations from peer-reviewed sources). 

· A minimum of four (4) peer-reviewed journal citations are required. 

· Formatting should be double-spaced, one-inch boarders, no extra space for headings, no extra white space, no more than two levels of heading, page numbers, front and back matter).

· Extra white space use to enhance page count will negatively affect student grade. 

· Chapter 1 illustrates the document details of the research report and constitutes Background/Introduction, Problem Statement(s), Goal(s), Research Question(s), Relevance and Significance, Barriers and Issues related to topic chosen. Chapter 2 should consist of student paraphrasing the cited research material (i.e. what happened in case study x). Chapter 3 should be the reasoning for doing a basic compare/contrast or advantages/disadvantage of what was stated in Chapter 2 (do not state because the professor said so). Chapter 4 is a complete analysis, synthesis, and evaluation of what was stated in chapter 2. In effect, chapter 3 is a statement of what will be done and chapter 4 is what was done and what the findings were. Again, thus far the writing is objective and must not contain student opinion. Chapter 5 states results, conclusion, and future work recommendations. Here is where student opinion (or any researcher) can state their respective opinion as the student has now “done the work” and are justified in stating results.

· Graduate student are expected to be proficient in the use of the English language. Errors in grammar, spelling, or syntax will affect student grade. The Professor, will not provide remedial help for writing problems. If the student is unable to write clearly and correctly, the student should be urged to contact the program office for sources of remedial help. 

· IMPORTANT – please refer to the following url for additional help on writing skills necessary at the graduate level (https://owl.purdue.edu/site_map.html). 

· Final Submission – the final report is due no later than the last day (Sunday) of Week 8. Late submission will be accepted. A total of at least 15 full pages is required (no extra whitespace). Only Microsoft Word or Adobe PDF submission is acceptable.

· The research paper must only include materials derived solely from peer reviewed journals or peer reviewed conference proceedings. Newspapers, websites (URLs), magazines, technical journals, hearsay, personal opinions, and white papers are NOT acceptable citations. Please access the CU Library at http://campbellsville.libguides.com/?b=g&d=a for appropriate materials.  

· APA formatted citations are required for the final submission. IMPORTANT – please refer to the following url for help with APA: https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_style_introduction.html. Please reach out to our librarians for additional citation management and APA help.

· All images, tables, figures are to be included in the appendices and IS NOT included in the 15 page requirement. This means appendices are not included in the 15 page requirement.

· Long quotations (i.e. paragraphs) are NOT permitted. Only one quoted short sentence (less than 14 words) is permitted per page.  

· Footnotes are NOT permitted.

Document Details

This area provides additional details about the content of each of the needed Research Report Chapters (5). For those instructing in Hybrid format, the instructor may want to consider having the instantiated teams work on: 1) an outline of the final research report and 2) a preliminary research report that includes Chapters 1 and 2. For those instructing in Online or F2F formats the instructor may want to consider using the Hybrid format (teams) or single student submission format. The final submission should include DETAILS of each of following: 

1) Chapter 1 – Introduction

2) Chapter 2 – Literature Review

3) Chapter 3 – Methodology Specifics (comparative analysis)

4) Chapter 4 – Findings and Results

5) Chapter 5 – Conclusion and Future Recommendations

6) References – APA

7) Appendices

Chapter 1 Introduction

Background/Introduction

In this section, present enough information about the proposed work such that the reader understands the general context or setting. It is also helpful to include a summary of how the rest of this document is organized. 

Problem Statement 

In this section, present a concise statement of a research-worthy problem addressed (i.e., why the work should be undertaken – don’t say required for the class). Follow the statement of the problem with a well-supported discussion of its scope and nature. The discussion of the problem should include: what the problem is, why it is a problem, how the problem evolved or developed, and the issues and events leading to the problem. 

Goal 

Next, include a concise definition of the goal of the work (i.e., what the work will accomplish). Aim to define a goal that is measurable.

Research Questions 

Research questions are developed to help guide the authors through the literature for a given problem area. What were the open-ended questions asked and why did the student find (or not find) them adequate. 

Relevance and Significance 

The student should consider the following questions as they read through an article stating how the author(s) supported, or left unsupported the evidence, relevance, and significance of their research literature: 

Why is there a problem? What groups or individuals are affected? 

How far-ranging is the problem and how great is its impact? What’s the benefit of solving the problem? 

What has been tried without success to correct the situation? Why weren’t those attempts successful? What are the consequences of not solving the problem? 

How does the goal of the study address the research problem and how will the proposed study offer promise as a resolution to the problem? 

How will the research add to the knowledge base? 

What is the potential for generalization of the results? 

What is the potential for original work? 

Barriers and Issues 

In these paragraphs, identify how the problem is inherently difficult to solve. How did the solution the author(s) propose address the difficulties? 

Chapter 2 Literature Review

In this section, it is important to clearly identify the major areas on which the student will need to focus the student research in order to build a solid foundation for the study in the existing body of knowledge. The literature review is the presentation of quality literature in a particular field that serves as the foundation and justification for the research problem, research questions or hypothesis, and methodology. The student will develop a more comprehensive review of the literature as part of the research. 

Chapter 3 Approach/Methodology

This chapter includes a summary of how the student are going to proceed with the evaluation of the problem statement and associated research question(s). Given the short time of this course, a compare / contrast or advantage / disadvantage analysis is recommended that 

Chapter 4: Findings, Analysis, Synthesis

Include an objective description and analysis of the findings, results or outcomes of the research. Limit the use of charts, tables, figures to those that are needed to support the narrative. Most of these illustrations should be included as part of the Appendix.

The following topics are intended to serve as a guide: 

Data analysis 

Findings & discussion

Analysis

Synthesis

Discussion 

Chapter 5: Conclusions

Conclusions – Clearly state the conclusions of the study based on the analysis performed and results achieved. Indicate by the evidence or logical development the extent to which the specified objectives have been accomplished. If the research has been guided by hypotheses, make a statement as to whether the data supported or rejected these hypotheses. Discuss alternative explanations for the findings, if appropriate. Delineate strengths, weaknesses, and limitations of the study.

Implications – Discuss the impact of the work on the field of study and its contributions to knowledge and professional practice. Discuss implications for future research.

Recommendations – Present recommendations for future research or for changes in research methods or theoretical concepts. As appropriate, present recommendations for changes in academic practice, professional practice, or organizational procedures, practices, and behavior.

References

Follow the most current version of APA to format the references. However, each reference should be single-spaced with a double space in between each entry. 

Formatting Details

Margins 

The left-hand margin must be 1inches (4 cm.). Margins at the right, top, and bottom of the page should be 1.0 inch. (See exception for chapter title pages below.) The Research Report text may be left-aligned (leaving a ragged right edge) or may be both left- and right-aligned (justified). 

Line Spacing 

Double-spacing is required for most of the text in documents submitted during the Research Report process. 

Paragraph Spacing 

The text of the document is double-spaced. There should be no extra spaces between paragraphs in sections; however, indent the first line of each paragraphs five spaces. 

Page Numbering 

All pages should have page numbers in Arabic numerals in the upper right-hand corner. 

Type Style

The body text, the student should use 12-point Times New Roman. Text for the cover page may be larger but should not exceed 14-point size. Text for the chapter title text should be 14-point size. Be consistent in the use of typefaces throughout the document. Do not use a compressed typeface or any settings on the word processor that would decrease the spacing between letters or words. Sans serif typefaces such as Helvetica or Arial may be used for relatively short blocks of text such as chapter headings and captions but should be avoided in long passages of text as they impede readability. 

Title Page 

Every document that is submitted must have a title page. The title page includes the exact title of the research report, date of submission, the team name, and the name of each team member. 

Chapter Title Heading, Subheadings, and Sub-Subheadings 

It is required that submitted Research Report use no more than three levels of headings in the body text. All headings should have only the first letter of each word capitalized except that non-major words shorter than four letters have no capital letters. 

Instructions for heading levels follow: 

Level 1: Chapter Title Heading 

This heading starts two inches from the top of the page, is centered on the page, and is set in 14­point type. The first line contains the chapter number (e.g., Chapter 4). The second line is blank. The third line displays the chapter title, is centered on the page, and is set in 14-point type.  

Level 2: Subheading 

Start the subheading at the left margin of the page, four spaces (i.e., two returns when the document is set for double-spacing) down from the title, set in bold 12-point type. Double-space (one return) to the subheading body text. Indent the first line of the body text five spaces. 

Level 3: Sub-Subheading 

Start the sub–subheading at the left margin of the page, double-spaced (i.e., one return when the document is set up for double-spacing) from the subheading, set in 12-point italics. Double-space (one return) to the sub-subheading body text. Indent the first line of the body text five spaces. 

Needs help with similar assignment?

We are available 24x7 to deliver the best services and assignment ready within 3-4 hours? Order a custom-written, plagiarism-free paper

Get Answer Over WhatsApp Order Paper Now