![Page 1: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/1.jpg)
IS Development
Yong Choi
School of Business
CSU, Bakersfield
![Page 2: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/2.jpg)
Study Objectives IS A&D Methodology Alternative IS Conversion Strategy Implementation Issues Measuring IS Success
![Page 3: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/3.jpg)
IS A & D Methodology
Systems development life cycle (SDLC) Prototyping Outsourcing
• Application Software Packages
Object Orientation
![Page 4: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/4.jpg)
Systems Development Life Cycle (SDLC) The oldest methodology Very formal Partitions the systems development process
into distinct stages. Develop system sequentially (stage by stage).
![Page 5: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/5.jpg)
![Page 6: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/6.jpg)
Pros and Cons of SDLC
Suitable if domain is well structured Online TPS
Not appropriate if domain is semi- or unstructured
![Page 7: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/7.jpg)
Prototyping
Building of an experimental system quickly and inexpensively End users can have a chance to evaluate
systems Less formal than SDLC
![Page 8: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/8.jpg)
Pros and Cons of Prototyping
Suitable if domain is semi- or unstructured Various DSS
Useful if technical requirements are unclear. Not appropriate for large and complex
technical systems - large TPS Design problem due to rapid development
![Page 9: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/9.jpg)
Outsourcing
It is the process of turning over an organization's computer operations, telecommunications network, or application development to external vendors.
![Page 10: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/10.jpg)
When to use outsourcing
Existing capabilities are limited – short of technological ability and IS staff
Systems that do not related with organization's secret (competitiveness)
Save costs To learn about more advanced technologies
![Page 11: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/11.jpg)
Pros of outsourcing
Economy Can reduce application development and
implementation time and cost Service quality Predictability
![Page 12: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/12.jpg)
Cons of outsourcing
Loss of control Vulnerability of strategic information Dependency
![Page 13: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/13.jpg)
Application Software Packages
One of the outsourcing methods Ready-to-use software
a set of prewritten, predesigned, pretested information systems
ERP systems
![Page 14: IS Development Yong Choi School of Business CSU, Bakersfield](https://reader036.vdocuments.us/reader036/viewer/2022082613/5697c0121a28abf838ccbf84/html5/thumbnails/14.jpg)
Object-Oriented A&D
New way to develop systems Very relevant to the Internet environment Time and cost effective method Developers OOAD knowledge Object library Still evolving