What is an e-r diagram- describe the symbols used in
1. What is an E-R diagram?
2. Describe the symbols used in constructing E-R diagrams.
3. What is a table of entities and activities?
4. Which entities in a narrative are included in the context diagram as internal and which are shown as external?
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as part of a study for the department of labor statistics you are assigned the task of evaluating the improvement in
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1 when do we have a choice as to what will be included in a context diagram2 which activities can be included in the
1 what is an e-r diagram2 describe the symbols used in constructing e-r diagrams3 what is a table of entities and
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discussionreview the course material and other literature on the keys issues and trends in itdiscussion questions1
1 what is the difference between a context diagram a logical dfd and a physical dfd2 what is a systems flowchart3 what
1 why do we need to document an information system2 what is a physical data flow diagram dfd3 what is a logical data
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