I need a brief overview/answer of each:* Principle roles for a system analyst* I

I need a brief overview/answer of each:* Principle roles for a system analyst* Involving individuals with various perspectives in system analysis and design activities* Connection between business and information system functions* Similarities and differences between an information system and activities of system analysis and design* Automation of system analysis and design activities* Input and output data for phases of the systems development life cycle* Showing dependencies with a data flow diagram* Logical and physical model differences* Relationship between system analysis and project management activities* Reasons for systems analysis and design failures

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