Which of the following models are developed on the principles of business management, accounting and econometrics ?

A. relevance
B. media
C. presentation
D. timeliness

A. determine data entry errors on primary keys
B. ensure that the correct type of data is input
C. determine whether a known relationship between two fields is valid
D. determine whether all required fields of the input have actually been entered

A. Decision making
B. Systematic
C. Cognitive
D. Decision support systems

A. Data access system
B. Data analysis system
C. Fore cast-oriented data analysis system
D. System based on accounting models

A. requirements management
B. sampling of existing documentation, forms and files
C. requirements discovery
D. problem discovery and analysis

A. layerware
B. tool kit
C. interfaceware
D. middleware