1 managing the development and purchase of information systems (part 3) bus3500 - abdou illia, fall...
TRANSCRIPT
1
Managing the development and
purchase of information systems
(Part 3)
BUS3500 - Abdou Illia, Fall 2005
(Week 12, Wednesday 11/16/2005)
2
LEARNING GOALS
Explain Purchase of IS process
3
Purchasing Software Commercial off-the-shelf (COTS) software
Less expensive May not contain all the needed features
Phases in COTS SDLC System planning Systems analysis Request for proposals Proposal evaluation Implementation Maintenance
}here is the difference
4
Request for Proposals (RFP) Details the requirements for the new
systems and invites interested parties to submit a proposal for the system
Sections in an RFP Summary of existing systems Specific description of the features of the new
system Proposal evaluation criteria Budget constraints Timetable for deliverables Details of other miscellaneous information
5
Request for Proposals (RFP) Summary of existing systems
Internal business processes Type of computers used etc.
Description of the features of the new system Requirements for hardware Requirements for software Requirements databases Requirements for network How many transactions per minutes? etc
Proposal evaluation criteria Features, reliability, speed, etc.
Budget constraints Maximum budget vs. No budget information
Details of other miscellaneous information Vendor’s past projects, client references, etc.
6
Evaluating Proposals Usually using a point-system
Number of points for each requirement More points to more important requirements
Evaluation approaches Specific requirements
Eliminate proposals that don’t meet requirements Compare remaining proposals
Demonstrations At vendor’s location vs. At client site
Benchmarks Running system with sample data to see how it
performs
7
Summary QuestionsMalaga Notes
1) What is a COST software? How does the Traditional SDLC SDM differ from COST SDLC? In what kind of situations Prototyping might be the best SDM to use?
2) What are the common sections found in a Request For Proposals? What is a point-system for evaluating proposals? What are the common proposal evaluation approaches?