Monthly Archives: June 2023

Choose a transaction that you are likely to encounter, perhaps ordering a cap and gown for graduation, and develop a high-level DFD or a context diagram. Share why you selected this transaction and share your thoughts on the data flow for the transaction with the class. 

Heuristic Usability Analysis of your Prototype

1. Usability Test/Test Plan
   1. Scenarios (from project 3)
   2. Tasks (from project 3)
   3. Task List (from project 3)
2. Usability Data
   1. Use two participants.
   2. You can observe them using your prototype.
   3. Write your observation.
   4. Interview them after they used your product.
   5. Give them a questionnaire. 
   6. Make sure your data is clear and understandable. 
3. Recommendations
   1. After your users have used your product, what are your recommendations for any usability problems that you observed from your users or that you got from the questionnaire.
   2. You can also rate the recommendations as major, minor, or non-issue, etc. if you like.

1. Discuss what performance management is and how it influences effective teams.
2.  define leadership behaviors (in your own words) and note which behaviors are beneficial at specific organizational activities (example: project planning, leading coworkers, etc…).  Please note at least five organizational activities and be specific when responding.
3. Note at least two organizational capabilities and compare and contrast each.

Use APA references and in-text citations.

Write the required program to design and run the functions listed in the image below

1. How is the implementation of network security similar and different between on-perm and cloud environments? Give some examples. 

2. How is the management of network security similar and different between on-perm and cloud environments? Give some examples. 

For this verse, you need to write a program that asks the user to input the inventory id number (integer) and the price (float) for 5 inventory items. Once the 5 inventory items are input from the user, output the results to the screen. Please ensure you use meaningful names for your variables. If your variables are not named meaningfully, points will be deducted. You should have 10 total variables defined. 5 integers for the inventory item ids and 5 floats for the inventory item prices. I already have it mostly done I can send you my code

reparation

1. Download KNIME (Links to an external site.) to complete this assignment.
2. Before you start working on this assignment, study the KNIME Quickstart Guide (Links to an external site.) to get familiar with the tool.
3. Download the file adult.csv available in the data folder on the KNIME Hub. The data are provided by the UCI Machine Learning Repository.

Part 1:

1. Create a new workflow and name it as: your_firstname_lastname_decision_tree.
2. In your workflow, train a Decision Tree to predict whether or not a person earns more than $50K per year:
   • Partition the dataset into a training set (75%) and a test set (25%). In your Partitioning node, apply stratified sampling option on the income column.
   • Train a Decision Tree model on the training set, and apply the model to the test set.
3. Use the Scorer node to evaluate the accuracy of the model.
4. Change the label of each node from the default (such as “Node 1”) to a brief description (e.g. “Read data from adults.csv”).
5. Try out other parameter settings to get a higher accuracy. For example, change the quality measure, pruning method, or minimum number of records.
6. When you are satisfied, export your workflow project and change the file name to include your full name. e.g. “potter_henry_decision_tree.knwf.”

Part 2:

1. Research and prepare answers to the following questions in a Word or pdf file:
   • What’s the purpose of applying stratified sampling option on the income column?
   • What’s the purpose of pruning and minimum number of records?
   • How did you changed parameter settings to get a higher accuracy?

Complete questions in the attach

1. How does prescriptive analytics relate to descriptive and predictive analytics?  

2. Explain why solving problems under uncertainty sometimes involves assuming that the problem is to be solved under conditions of risk.

3. Investigate via a Web search how models and their solutions are used by the U.S. Department of Homeland Security in the “war against terrorism.” Also investigate how other governments or government agencies are using models in their missions.

Case Study 7.1

Describe 3 theories/ideas that you think characterize the future of Cyberwarfare, and explain their significance.

Writing Requirements

• 3-4 pages in length  (excluding cover page, abstract, and reference list)

Case Study 8.1

Paper

The topic for the Final paper is: “The issues and challenges of Cyber Warfare”

Writing Requirements

• 7-8 pages in length  (excluding cover page, abstract, and reference list)