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System Development and System Practices (General Objectives (1) Record…
System Development and System Practices
Solving Problems
1.Recognize & define a problem or opportunity using systems thinking
2.Develop & evaluate alternative system solutions
3.Select the system solution that best meets your requirements
4.Design the selected system solution
5.Implement & evaluate the success of the designed system
System Thinking
•Thinking in big picture
•Looking into real world
•Modeling problem from different viewpoints
•Define root definition of relevant systems
Development Approaches
Structured System Analysis & Design Method (SSADM)
System Engineering
Structured System Analysis
1) A structure of Steps And Tasks which the project team should consider
2) A set of techniques to be applied in each step that provide (largely diagrammatic) structured definition ofuser requirements and system components.
Holistic Thinking
Evaluation System
1) Efficacy
2) Efficiency
3)Effectiveness
System Engineering
V-Model
Information System Engineering
Information System Engineering is concerned with concepts, tools and methods for building information systems
General Objectives
1) Record Requirements
2) Monitor Progress
3)Produce Good Design
4)Development Efficiency
5) Feedback through development
6)Documentation
7) Produce Systemsacceptable to users
Methodology Benefits
1) Project control, ease of management, quality standards
2) A better development process
3) Reduce maintenance costs
4) A standardized process
5) Simplified short development time
6) Produce systems acceptable to users
7) Reduce application backlogs
Systems Practice
1) Custom
2) Subset of some standard
4) None (Most companies do not use any methodology)
3) Packaged Methodology
Manuals, training, CASE support, forms, templates
Issues in System Practices
Scope of Methodology
