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System Development Process ((Evaluation system (Efficacy, Efficiency,…
System Development Process
Development approaches
System engineering
Structured system analysis & design method
System thinking
Thinking in big picture
Solving problems
Analyzing a problem and formulating a solution
Structured System Analysis
systems approach to the analysis and design of information system
Structured definition
structure of steps and tasks
Holistic thinking
Holistic process of inquiries
Iteration: identify the context of the system
Iteration: Function of the system
Iteration: Processes
Evaluation system
Efficacy
Efficiency
Effectiveness
System engineering
A robust approach to the design, creation, and operation of systems
V-Model
System engineering domain
Component engineering domain
Information system engineering
Is concerned with concepts, tools and methods for building information system
A disciplined focus on the end product, its enabling products, and its internal and external operational environment
A consistent vision of stakeholders’ expectations independent of daily project demands
General objective
7 general objectives of methodology
Methodology benefits
Project control, ease of management, quality standard
A better development process
Scope of methodology
uccess not guaranteed
Repeatability is acid test of a methodology
Issues in system practice
nitial effort on tangible ‘hard’ aspects such as program code and data structures but omitting the resources (people, money and equipment)
Resolving application backlog
Miscomunication between individuals, team, customers, and organization during development phase
Management attitude towards application of methodology
System practice
Custom
Subset of some standard
Packaged methodology
None