Managing Application Development

8/3/2019 Managing Application Development

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Prof. Rushen Chahal

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 developmentframework: 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 integratedapplication 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 oncorporate model

Strict change control procedure

High IS and users skills and knowledge


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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 developmenttools

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 infrastructureimprovements


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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

Documents

Managing Application Development