Systems Design and Implementation Techniques

Systems Design and Implementation Techniques

Course Content

Introduction

• Objectives and constraints of design
• Design and implementation in the systems development life cycle
• The products of analysis
• Design approach and architecture

Input and output design

• The design boundary
• Output design and technology
• Input design and technology
• Selection of appropriate output and input technologies

Human-Interface Design

• Design of input and output screens
• Dialogue types
• Usability and style guides
• Dialogue modelling
• Prototyping the interface

Logical Data Design (normalisation)

• Notation and conventions of relational data analysis
• Principles of progressive normalisation
• Rationalising results
• Building the normalised (Third Normal Form) data model

Logical Process Design

• Class diagrams (UML)
• Interaction Diagrams (UML)
• Sequence Diagrams (UML)
• Communication Diagrams (UML)
• Structured English
• Data Action Diagrams

Systems Controls

• Risk in systems development
• Physical security
• Logical security
• State machine diagrams (UML)
• Backup and recovery procedures
• Software controls
• Audit trails
• Legal requirements of the designer
• Ethical issues affecting the designer

Physical Design

• Optimising the physical design
• Principles of physical data design
• Design of codes and keys
• Principles of physical process design
• Common design patterns
• Interface and sub-system design
• Component diagrams (UML)
• Deployment diagrams
• Principles of re-factoring
• Principles of round-trip engineering

Testing

• Test cases from design models
• Design and code inspections
• Unit or component testing
• Component integration testing
• System testing
• System integration testing
• User acceptance testing
• Requirement traceability

Systems Implementation

• Implementation planning and preparation
• Changeover methods
• Handover procedures

Training

• Analysing training needs
• Methods of training delivery
• Evaluation training

Post-implementation

• Post implementation and post project reviews
• Benefits realisation
• Types of maintenance
• Change control
• Build and release strategy
• Regression testing
• Objectives and constraints of design re-visited