Throughout the course students study computer networking communication protocols, and in this project will implement a foundational protocol in Python. A key learning outcome is how to code a distributed algorithm with formal communication rules that enables network nodes to build up a global picture of the network topology using only local message passing. The Spanning Tree Protocol solves the problem of providing redundancy and resilience in a computer network while avoiding infinitely looping communications and broadcast storms.

Throughout the course students study computer networking communication protocols, and in this project will implement a foundational protocol in Python. A key learning outcome is how to code a distributed algorithm with formal communication rules that enables network nodes to build up a global picture of the network topology using only local message passing. The Spanning Tree Protocol solves the problem of providing redundancy and resilience in a computer network while avoiding infinitely looping communications and broadcast storms.

Unit 4 Assignment: System Modeling Portfolio

Purpose

To develop a comprehensive modeling portfolio for a case system. This portfolio will demonstrate your ability to use various modeling techniques to visualize system structure, behavior, and data.

Associated Skills

• Explaining the components of UML
• Developing UML diagrams
• Identifying methods for modeling data structures
• Constructing entity-relationship diagrams and data flow diagrams
• Designing database schemas based on business requirements
• Critiquing visual models for completeness and accuracy

Industry Artifact:

System Modeling Portfolio is a professional collection of interrelated models used by system analysts to document system design from multiple perspectives. In professional settings, these portfolios serve as crucial documentation for development teams, maintenance staff, and stakeholders. System analysts create these comprehensive model collections to ensure all aspects of a system are properly visualized before implementation begins, reducing development risks and ensuring alignment with business requirements. A well-crafted modeling portfolio provides a single source of truth that guides implementation decisions and serves as reference documentation throughout the system’s lifecycle.

Objective: Create a set of integrated models that collectively represent a complete system from multiple perspectives.

Instructions

1. Select a System: Choose one of the following case systems OR propose your own system of similar complexity (with instructor approval):
   • Online Course Registration System
   • Hospital Patient Management System
   • E-commerce Platform
   • Bookstore Management System
   • Hotel Reservation System
2. Create the Following Models:
   • Use Case Diagram with Descriptions:
     • Identify at least 5 key use cases.
     • Include all relevant actors.
     • For each use case, write a detailed description (200-300 words) including:
       • Brief description
       • Actors involved
       • Preconditions
       • Basic flow
       • Alternative flows
       • Postconditions
   • Class Diagram:
     • Include at least 8-10 main classes.
     • Show attributes and operations for each class.
     • Indicate appropriate relationships (association, aggregation, inheritance).
     • Include multiplicity in all relationships.
     • Organize classes logically (using packages if needed).
   • Sequence Diagrams:
     • Create sequence diagrams for at least 3 key use cases.
     • Show object interactions over time.
     • Include all relevant objects and messages.
     • Use appropriate UML notation for loops, conditions, etc.
   • Entity-Relationship Diagram:
     • Include all major entities in the system.
     • Show attributes for each entity (including primary keys).
     • Indicate relationships with proper cardinality.
     • Use crow’s foot notation.
   • Data Flow Diagrams:
     • Create a context diagram (Level 0).
     • Create a Level 1 diagram showing major processes.
     • Ensure consistency between levels.
     • Label all data flows appropriately.
   • Database Schema Design:
     • Create a logical schema based on your ERD.
     • Include table definitions with data types.
     • Indicate primary and foreign keys.
     • Apply appropriate normalization (at least 3NF).
3. Write a Model Integration Document (500-750 words) that explains:
   • how the different models relate to each other.
   • any challenges you encountered in maintaining consistency.
   • assumptions made during the modeling process.
   • how these models would be used during system development.

Submission Guidelines / Criteria for Success

• Complete modeling portfolio in a single PDF document.
• All diagrams must be created using appropriate modeling tools.
• Use proper UML and ERD notation.
• Include a cover page and table of contents.

The goal of this assignment is to:

• practice git commands
• familiarize with markdown

Develop a GitHub page using markdown language. It is suggested that you use the template available at

Please REMOVE all unused pages and links.

Use this assignment as an opportunity to develop a professional-level webpage for yourself. The page should contain at least the following information. It is highly recommended to add as much as you can for your future employers.

• Your Name
• Your Picture
• Your Education
• Link to the Department page: cs.uh.edu
• Link to your LinkedIn Profile. The linkedIn profile must have a link to your webpage. (If you have a non-GitHub page, it’s fine as well.)
• Link to your Resume in PDF format
• It should use Google Analytics to collect information about the page traffic

NOTE: As a professional you need a page, please actively maintain it throughout your education and career.

Deliverables:

• URL of the published page.
• URL of the corresponding GitHub repository.
• A screenshot of the Google Analytics report for the past week.

I need help with a basic computer writing task.

Please type the content clearly in simple English.

Use proper formatting and headings.

The work should be original and easy to understand.

Submit the file in MS Word format.

Throughout the course students study computer networking communication protocols, and in this project will implement a foundational protocol in Python. A key learning outcome is how to code a distributed algorithm with formal communication rules that enables network nodes to build up a global picture of the network topology using only local message passing. The Spanning Tree Protocol solves the problem of providing redundancy and resilience in a computer network while avoiding infinitely looping communications and broadcast storms.

Please review all files in zip. This assignment uses gradescope.

This assignment focuses on foundational concepts related to modern cloud-based systems and DevOps practices. It covers the National Institute of Standards and Technology (NIST) definition of cloud computing, including service models and deployment models. The assignment also requires understanding and categorizing real-world platforms such as SaaS, PaaS, and IaaS services based on their functionality and use cases.

In addition, the topic explores virtualization concepts discussed in Chapter 2, including the role of hypervisors in creating virtual machines. Students must distinguish between Type 1 and Type 2 hypervisors and recognize common industry products associated with each type. The assignment further examines virtual machine image management, specifically heavily baked and lightly baked images, and their implications for system flexibility and deployment speed.

Finally, the assignment addresses challenges introduced by virtualization in DevOps environments, including uncertainty factors, and analyzes how DNS configurations that return multiple IP addresses support scalability, reliability, and fault tolerance in distributed systems.

Academic Integrity Statement:

All responses will be written entirely in my own words. No artificial intelligence tools, automated text generators, or external writing assistance will be used in any part of this assignment. The work will reflect my personal understanding of the course materials, textbook, and assigned readings.

and also, Links for this assignment:

Attached Files (PDF/DOCX): Security in Cloud Computing Writing Assignment Instructions.docx, Security in Cloud Computing Writing Grading Rubric.pdf

Note: Content extraction from these files is restricted, please review them manually.