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Published byPhillip Cross Modified over 9 years ago
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Chapter 11 Managing Application Development
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Agenda Application management framework Application management issues Criteria for development approach Development approach IS & development approach System factory tasks Methods & tools
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Application Management Framework Objectives and principles for IS development & management Policies, standards, & guidelines for IS development & support Framework for the development or acquisition of IS: methods, tools, procedures Infrastructure projects to re-tool the development framework: training, education, & support
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Application Management Issues Application backlog Maintenance burden IS development process –IS for business not for IT End user computing Transition –Mainframe to client/server –Graphical user interface –Traditional systems development life cycle (SDLC)/object oriented
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Criteria for Development Approach Economic Technical Schedule Operational Functional complexity Development skill Priority Benefits & risks Availability Others?
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Development Approach In house –IS/IT professional –End user Out source –Individual consulting –Consulting firm or software company Off the shelf software package
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IS & Development Approach High potential Strategic Key operational: SDLC or integrated application packages Support: packaged proprietary software
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High Potential - Methods Rapid development user-oriented tools/prototyping New technology or new development tools
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High Potential - Characteristics Evaluate technology or business idea Independent –integration and data management not appropriate Rapid low cost iterative development Business champion End user development or user/IS team New skills/skills transfer Focused pilots/broad potential
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Strategic - Methods Advanced database technology Sophisticated application generator SDLC/prototyping
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Strategic - Characteristics Based on the corporate model Fast & flexible development approach Close partnership between users & IS professionals/new skills Complex applications in modular Creating a new business process External links Interconnect with key operational Executive support Limited package applicability
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Key Operational - Methods System development life cycle Software engineer Corporate data management Industry specific application packages Application generators/CASE/SAP Reengineering
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Key Operational - Characteristics Well designed Efficient, robust, long life Complex and integrated, based on corporate model Strict change control procedure High IS and user’s skills and knowledge
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Support - Methods Standard packages Disinvestment/third party support
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Support - Characteristics Minimum intervention Minimum maintenance IS skills – package selection and implementation / essential interfaces / vendor management Compromise business needs rather than modify package Integration no vital Efficient/low risk
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System Factory Tasks Develop system using advanced development tools Work with end user using prototyping End user support Information services Select, configure, and implement package Upgrade, re-engineer or retrofit systems Develop and implement infrastructure improvements
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Methods and Tools Object oriented software Graphical user interfaces Software engineering Software management tools: CASE Rapid application development & prototyping
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Points to Remember Application management framework Application management issues Criteria for development approach Development approach IS & development approach System factory tasks Methods & tools
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