Unified Software Practices v 5.0 Copyright  1998 Rational Software, all rights reserved 1 R Rational Unified Process  “de facto standard”, framework for defining any software engineering process  Rational Corporation (now part of IBM)  Almost all Government software projects  Define “roles”, “deliverables”, workflows  Architecture centric (UML diagrams)  Iterative, customer-driven, ongoing change management  OTHERS  “latest book” – XP, Fusebox, Scrum …  Capability Maturity Model (CMU)  Consulting Companies (DMR, Accenture, etc.)  ISO 9000, DOD and DND standards

Unified Software Practices v 5.0 Copyright  1998 Rational Software, all rights reserved 2 R RISKRISK T I M E Waterfall Development Delays Reduction of Risk Subsystem Testing System Testing Code & Unit Testing Design Requirements Analysis

Unified Software Practices v 5.0 Copyright  1998 Rational Software, all rights reserved 3 R Apply the Waterfall Iteratively to System Increments  Earliest iterations address greatest risks  Each iteration produces an executable release, an additional increment of the system  Each iteration includes integration and test T C D R T I M E Iteration 1Iteration 2Iteration 3 T C D R T C D R

Unified Software Practices v 5.0 Copyright  1998 Rational Software, all rights reserved 4 R Iterative Development Accelerates Risk Reduction Waterfall Iterative RISKRISK T I M E Iteration

Unified Software Practices v 5.0 Copyright  1998 Rational Software, all rights reserved 5 R Iterative Development Characteristics  Critical risks are resolved before making large investments  Initial iterations enable early user feedback  Testing and integration are continuous  Objective milestones provide short-term focus  Progress is measured by assessing implementations  Partial implementations can be deployed

Unified Software Practices v 5.0 Copyright  1998 Rational Software, all rights reserved 6 R Apply Best Practices Throughout the Life Cycle Management Environment Business Modeling Implementation Test Analysis & Design Preliminary Iteration(s) Iter. #1 Phases Process Workflows Iterations Supporting Workflows Iter. #2 Iter. #n Iter. #n+1 Iter. #n+2 Iter. #m Iter. #m+1 Deployment Configuration Mgmt Requirements ElaborationTransitionInceptionConstruction