Less risk different license access smart investment

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less risk, different license access, smart investment in staff, contractrual guarantee , better upgrade path - DEPEPENDENCY, more follow up, limits to changes, overhead costs, commjunication, misunderstanding, requires different management skills, knowledge transfer, increased risk, web, different time zones, cultural and management differences,
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Custom Development Build it yourself Pros Get exactly what you want, unique solutions Be flexible and creative in solving business problems Use current tech & standards Builds technical skills within the organization Cons Significant time and effort, cause delays on other IT Requires a variety of skills, but high skilled IS professionals are difficult to hire and retain Risks building new system from scratch are high +end user development?
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“Packaged” Software Purchase or license hosted COTS solution & customize Pro More efficient, already created and tested Fast install, cost and time savings Good support, vendor expertise Con Must accept standardized functionality, poor fit? Customization is difficult Rely on vendor for maintenance and evolution Systems integration with legacy systems
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Hosting “Packaged” Software ASP – provider hosts someone else’s software SaaS – software vendor hosts its own software No infrastructure required, but dependent on host’s reliability Security & performance risks Service Level Agreements (SLA), often web of 99.999% uptime
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Outsourced External developer Pros Low cost of entry, saves time and money Short startup time Best-in-class expertise, lower skills risk Cons Security, compromising confidential information Losing control over future development Losing important skills of in-house professionals You should never outsource what you do not understand Carefully choose the right outsourcing firm
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Outsourced You should never outsource what you do not understand Carefully choose the right outsourcing firm Clear, frequent communication Treat as a partnership Vs. “offshoring”
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Outsourced Three types of outsourcing contracts: Time and arrangements: pay for whatever time and expenses are needed to get the job done Fixed-price contract Value-added contract: the outsourcer reaps some percentage of the completed system’s benefits
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Acquisition Strategy
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Acquisition Issues Request for proposal (RFP) solicits a formal offer from a potential vendor, developer, or provider RFPs describe in detail the system or service that is needed, and vendors respond by describing in detail how they could supply those needs Request for information (RFI) small projects Request for quote (RFQ) pricing for COTS
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Alternatives Matrix Alternative matrix combines several feasibility analyses into one matrix for easy comparison Such as technical, economic and organizational feasibilities for each system candidate, pros and cons, risks, and other information Matrix is a grid with alternatives across the top and different criteria along the side Weights and scoring among alternatives
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Alternatives Matrix
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Architecture Design
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