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CHAPTER 7: DEVELOPMENT STRATEGIES (THE SOFTWARE ACQUISITION PROCESS…
CHAPTER 7: DEVELOPMENT STRATEGIES
KEY TOPICS
The impact of the internet
software as a service (SaaS)
traditional development
-design influenced by compatibility issues
-designed to run on local and wide-area company networks
-often utilize Internet links and resources
-many firms rely on traditional systems
web-based development
-developed and delivered in an Internet-based framework such as .NET or WebSphere
looking to the feature: web 2.0 and cloud computing
Outsourcing
growth
-called a service provider
-Application service providers (ASP)
-Internet business services (IBS)
fees
-fixed fee model uses a set fee based on a specified level of service and user support
-subscription model has a variable fee based on the number of users or workstations that have access to the application
-usage model or transaction model charges a variable fee based on the volume of transactions or operations performed by the application
issues and concerns
-can affect day-to-day company operations and can raise some concerns
offshore
-lower bottom-line costs
-Offshore outsourcing – global outsourcing
In-house software development options
make or buy desicion
developing software
purchasing a software package
customizing a software package
creating user applications
ANALYZING COST AND BENEFITS
financial analysis
cost-benefits analysis checklist
THE SOFTWARE ACQUISITION PROCESS
Evaluate the Information System Requirements
Identify Potential Vendors or Outsourcing Options
Evaluate the Alternatives
Perform Cost-Benefit Analysis
Prepare a Recommendation
Implement the Solution
COMPLETION OF SYSTEMS ANALYSIS TASKS
System Requirements Document
Presentation to Management
Presentation to Management
TRANSITION TO SYSTEM DESIGN
Preparing for Systems Design Tasks
Logical and Physical Design