1. CIS 210 Systems Analysis and Development
Week 8 Part I
Finalizing Design Specifications ,

2. Objectives Upon completion of part I you will be able to:
Understand and be able to explain the concepts related to system design specifications
Understand and be able to explain the concepts related to structured charts
Understand and be able to explain the concepts related to evolutionary and throwaway prototyping
Understand and be able to explain the concepts related to the role of CASE tools in capturing design specifications

3. Overview Today’s Emphasis on Speed Traditional Design Specification
Blurring the lines
Analysis and design
Design and implementation
Traditional Design Specification
Clear lines
Completed by analysts
Agile Methodologies
Focus on software
Rapid iterative movement between design and coding

4. Finalizing Design Specifications
Overview
Result of the SDLC
Software requirements specifications
The Final Design Specification Process
Blueprint for physical system
Deliverables and Outcomes
Set of physical design specifications

5. Traditional Methods Overview Specification Documents Structure Charts
Pre-CASE
Natural language documents
Specification Documents
Computer-based requirements documents
Structure Charts
Show breakdown of the system
Modules
Data couple
Flag
Pseudocode

6. Traditional Methods for Representing Specifications
Prototyping
Overview
Construction of model system
Allows testing by users and developers
Evolutionary prototyping
Prototype becomes actual system
Throwaway prototyping
Does not preserve prototype
Quick development

7. Traditional Methods for Representing Specifications
Rapid Application Development (RAD)
Planning
Design
Construction
Cutover
Advantages
Disadvantages

8. Agile Methodologies Overview eXtreme Programming Requirements
Functional design
Code
Testing
eXtreme Programming
Simple design
constraints
Refactoring

9. Summary Finalizing design specifications Specifications documents
Structure charts
Prototyping
Rapid application development
Agile methodologies