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7A Development Strategies (3 key to consider development path (2.Software…
7A Development Strategies
3 key to consider
development path
1.Internet impact
Traditional development
Firms are using legacy applications that are not easily replaced
System design is influenced by compatibility issues
Systems are design to run on local & wide-area company networks, so security issues are less complex
Web-based features are treated as enhancement rather than core elements
may require power PC
Web-based development
Saas (Software as a Service)
Easily scalable
Systems are developed and delivered in an Internet-based framework (.NET, WebSphere)
reduce the need for maintenance, operation
require additional layer (middleware)
2.Software outsourcing
Service provider: a firm that offers outsourcing solution
2 popular options:
ASP
Application Service Providers
: charge subscription fee
IBS
Internet Business Service
(Managed hosting): provide powerful web-based support for transaction
Outsourcing fee
Fixed fee model: based on specified level of service and support
Subscription model: variable fee based on number of users
Usage model (Transaction model): variable fee based on volume of transaction or operation
Offshore outsourcing (Global outsourcing): send IT work overseas to lower bottom-line cost
In-house software development
Make (Build) or buy decision
Make in-house software
Buy software package (horizontal vs vertical application)
Reason for in-house development
Satisfy unique requirements
Minimize changes in business procedure
Meet contraints of existing system
Develop internal resources
Reason for buying package
Lower cost
Less time to implement
Less IT staff
Create User Application
: service desk or information center hướng dẫn user tự làm form, report thông qua UI
SA role: work as an
evaluation and selection team
, giúp owner ra quyết định chọn option nào
phân tích Cost and Benefits
Financial Analysis Tools
Payback analysis
ROI
NPV
Check list
Liệt kê những phương án
Identify all cost and benefits for each phương án
Xem xét future growth, scalability