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.

Get fast, custom help from our academic experts, any time of day.

Place your order now for a similar assignment and have exceptional work written by our team of experts.

Secure 100% Original On Time Delivery