Keyphrases
- high level
- design process
- knowledge based systems
- building blocks
- design processes
- design decisions
- learning systems
- design principles
- domain knowledge
- knowledge repository
- design tools
- formal methods
- case study
- design issues
- conceptual model
- knowledge level
- expert systems
- object oriented systems
- simulation tools
- interactive systems
- conceptual framework
- knowledge base
- computer systems
- web based educational systems
- prior knowledge
- knowledge representation
- design criteria
- higher level
- semantic information
- knowledge sharing
- knowledge engineering
- knowledge engineers
- technical issues
- human users
- software environment
- knowledge management
- design patterns
- uml models
- web based learning environments