Unified Software Development Process (UP) Also known as software engineering process SEP describes how requirements are turned into software Defines who, what, when and how of developing software. UML is the visual part UP is the process part

A divide and conquer approach to capture and handle complexity The complete large system may be incomprehensible Break down into blocks Large blocks are called subsystems Subsystems are made up of components

Also try to describe how the components and subsystems are to be used Describe the intended interaction and sequence of interactions SEP specification work started in 1967 Interactive-Iterative development was formalized

RUP is a commercial variant of UP ‘Who’ introduces the concept of worker or roles ‘When’ describes activities to be performed by individuals or teams A sequence of related activities is known as a workflow ‘What’ describes artifacts (inputs and outputs) – in other words : deliverables

UP instantiation Setting up the environment Setting up the standards Setting up tracking process and reports Adopting quality control methods Permeate this mindset through the organization

UP axioms Identify and develop use cases Do risk analysis of software development Risk analysis done by project manager and architect Architect – strategic aspects of system composition and its deployment on hardware

Stepwise requirement Mini projects – contain all elements of a complete software development –Planning –Analysis and design –Construction –Integration and testing –Internal/external release –Complete documentation Baseline increments

Requirements – what the system should do Analysis – refining and structuring/modeling requirements Design – system architecture, with details, that realizes the requirements Implementation – building the software Test – verifying the software against requirements

Projects can be a sequence of steps/iteration Identify dependencies Parallelize activities Agreed baselines Review of each phase Formal process of change management

Inception – life cycle objectives (initiate project) –Establish feasibility –Create business case –Capturing essential requirements and scope –Identifying critical risks Project managers and system architect Mostly requirements and analysis Maybe prototype for proof of concept Not much testing

Inception Milestones MilestoneDeliverable Project ObjectivesVision Document Scope and Key requirements Understood Initial Use-case model + Glossary Cost and Schedule Estimate/Business case made Project Plan and Estimate signed off Risk AssessmentRisk Assessment document Feasibility StudiesPrototypes developed Outline ArchitectureInitial Architecture Document

Elaboration – life cycle architecture (establishing project) –Create a baseline architecture –Refine risk assessment –Define quality attributes –Capture use cases and functional requirements –Detailed plan for construction Establish core workflows w.r.t. requirements, analysis and design

Elaboration Milestones MilestoneDeliverable Detailed executable and architectural model UML Static and Dynamic Model, Use- case Model Vision well definedVision Document /Glossary– revised Risk re-assessedRevised Risk Assessment document Usability agreed with stakeholdersSRS document with details Project Plan with detailsProject Plan document and dissemination Agreement for ContinuationProject Signoff

Construction – initial operational capability (implementation) –Ensuring consistency with the goals of the first two phases –Maintenance and flexibility are core issues Detect inconsistencies or hidden requirements Finish analysis and design model Code Test

Construction Milestones MilestoneDeliverable Develop a stable software that is deployable Software product, UML Models, Test Suite Stakeholders ready for transitionUser manuals, release preparation Cost re-evaluationRevise project plan

Transition – product release – deployment –Correct defects –Prepare user site –Customize software for user –Modify for unforeseen needs –Manuals and documentation –Consultancy and training –Project review Mainly testing and acceptance testing at user site

Transition Milestones MilestoneDeliverable Beta testing completed, changes made and stakeholders agree on successful deployment Software product Users using the productFeedback Product SupportUser support plans

Stages within UP Get off ground with prototype Develop project model with baseline increments Detail requirements and develop structured use cases Specify details for implementation for functional and non-functional requirements with flexibility Implement, module/unit test Performance testing, field testing, deployment setup Release, customize and maintain

Different Hats Systems Analyst Requirements Engineer Use-case engineer Software analyst Design Engineer Architect Component Engineer