-Agile vs. Waterfall -Development Processes and Documents Product Development Best Practices JohnGibbon.com

Waterfall Agile Release Why

Agile versus Waterfall Waterfall / Traditional Agile / Recent Document, Feature, and Process Driven Familiar and Understandable Scalable: Distributed Teams & Junior Members Long Term Goals Defined No Throw Away Code Better Suited for Mission Critical Deliverables Less Death Marches Demonstrable Intermediate Milestones; More Predictable Releases Integration Testing Built-in Flexible (Agile) During Development More Realistic Requires Trust, Negotiations, & Cooperation

Waterfall / Traditional

Agile / Recent

Document, Feature, and Process Driven

Familiar and Understandable

Scalable: Distributed Teams & Junior Members

Long Term Goals Defined

No Throw Away Code

Better Suited for Mission Critical Deliverables

Less Death Marches

Demonstrable Intermediate Milestones; More Predictable Releases

Integration Testing Built-in

Flexible (Agile) During Development

More Realistic

Requires Trust, Negotiations, & Cooperation

(Usually) Agile Methodology Iterative and Incremental Development Short, Iterative Cycles (2-5 weeks) with Demonstrable Deliverables Plan, Requirements Analysis, Design, Code, Test, Document At End, Should Have Releasable Software Re-evaluate Priorities at End of Each Iteration Stories or Use-Case Based Development Time Driven, Not Feature Driven Development -Burn Down and Backlogs Scrums – daily face-to-face meetings -Pigs and Chickens Test Driven Development

Short, Iterative Cycles (2-5 weeks) with Demonstrable Deliverables

Plan, Requirements Analysis, Design, Code, Test, Document

At End, Should Have Releasable Software

Re-evaluate Priorities at End of Each Iteration

Stories or Use-Case Based Development

Time Driven, Not Feature Driven Development

-Burn Down and Backlogs

Scrums – daily face-to-face meetings

-Pigs and Chickens

Test Driven Development

Development Processes and Documents

What: Use Case Focused Product Requirements PRD (Product Requirements Document): Uses Cases and More ! Description of Actors or Users Series of Use Cases: General to Specific Non-Functional Product Requirements: Scalability, Security, Reliability, Availability, Installation, etc . Or Interactive Prototypes!

PRD (Product Requirements Document):

Uses Cases and More !

Description of Actors or Users

Series of Use Cases: General to Specific

Non-Functional Product Requirements: Scalability, Security, Reliability, Availability, Installation, etc .

How: Technical Specifications Architecture Diagrams & Technical Specifications Patterns Standards -Unit Tests - Test Driven Development -Code Standards – Code Review Test Plan Integration and Use Case Test Release Process and Document

Architecture Diagrams & Technical Specifications

Patterns

Standards

-Unit Tests - Test Driven Development

-Code Standards – Code Review

Test Plan

Integration and Use Case Test

Release Process and Document

Describe Overall Architectural Pattern Struts framework implementing MVC with Java Servlets and JSPs controller: struts controller servlet and action classes CONFIDENTIAL Page Especially to Create Rules for What Logic Lives Where

Describing a New Architectural Pattern CONFIDENTIAL Page Architectural Next Steps: transform XML to HTML via XSLT (Collaboration Diagram: Object View with Numbered Sequences)

Architecture Overview Page J2EE Foundation Application Services Search J2EE Application Server Reporting Workflow Forms Security Auditing Doc Mgmt Messaging Enterprise User Remend Manager Inbox File Cabinet Reports Contacts Config & Admin Vendor Vendor Workspace Inbox Tasks Actions Reports -- Workflow, Forms, Reports -- Domain REO Foreclosure Loss Mit Asset Eval Occupancy Cash4Keys Eviction ••• Title Legal HUD ••• Process Audit Approval ••• Counseling Workout Refinance ••• Legacy Data RDBMS Doc Mgmt Proprietary DB Servicing Integration Modules Data API Document

Inbox

File Cabinet

Reports

Contacts

Config & Admin

Inbox

Tasks

Actions

Reports

Occupancy

Cash4Keys

Eviction

Title

Legal

HUD

Process

Audit

Approval

Counseling

Workout

Refinance

RDBMS

Doc Mgmt

Proprietary DB

Servicing

Overall Service Topology