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Ch1_Brief_SDLC_Overview

Ch1_Brief_SDLC_Overview - SDLC Phase/Activity/Deliverable...

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SDLC Phase/Activity/Deliverable Overview
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SDLC Phase/Activity/Deliverable Overview Project Identification & Selection Purpose – identify need for new and/or enhanced system based on business strategy, goals, objectives Activity – annual business/IT alignment process Deliverable – prioritized portfolio of systems development projects that should be undertaken by the organization at least in terms of an initial study Project Initiation & Planning Purpose – formal initiation of a project identified in the Project Identification & Selection Phase Activity o Formal preliminary investigation of the system problem or opportunity at hand o Presentation of reasons why the system should or should not be developed Deliverable – go/no business case, if go: scope, baseline project plan, project team organization Analysis Purpose – decompose the area/focus of study (from project Initiation phase) Activity o Requirements Determination o Requirements Structuring o Alternative Selection Deliverables o Process Model Current/as-is situation Proposed/to-be situation o Data Model Current/as-is situation Proposed/to-be situation Design Purpose Activities o Files & Databases o Forms & Reports o Dialogues & Interfaces o System & Program Structure o Distributed Systems Deliverables
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o GUI Implementation Purpose – physically develop and implement, via the design documents from Design phase, the software and associated databases Activities – code, test, validate Deliverables – application software and associated databases, user training Maintenance Purpose – evaluate enhancements, changes to the implemented application driven by new business requirements and/or logic problems with the existing application. Install new version of software (if purchases package) Activities – scaled down version of SDLC (phases noted above) Deliverables – same as deliverables above
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Other SDLC ‘Flavors’
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Other SDLC ‘Flavors’
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Agile Methods Agile Methodologies The various Agile methodologies share much of the same philosophy, as well as many of the same characteristics and practices (as we discuss separately on  the site). But from an implementation standpoint, each has its own recipe of practices, terminology, and tactics. Here we have summarized a few of the main  contenders these days: Scrum     Extreme Programming (XP)     Crystal     Dynamic Systems Development Method (DSDM)     Feature-Driven Development (FDD)    
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Lean Software Development     Scrum Scrum is a lightweight management framework with broad applicability for managing and controlling iterative and incremental projects of all types. Ken  Schwaber, Mike Beedle, Jeff Sutherland and others have contributed significantly to the evolution of Scrum over the last decade. Over the last couple of years 
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