In terms of time: Humans loose focus after 20 minutes unless you change the pace or supply caffeine and sugar. Donuts and coffee help! So does involving the audience.
The ideal time depends on the type of presentation. Presentations to management should be shorter than presentations of technical ideas to engineers, for example. As a rule, technical people find meetings a waste of their time and so we have things like "stand up meetings" limitted to 15 minutes to share progress and blockages. I'm surprised that no data has apeared on the use of electronic meetings and presentations on software development.
Whatever: don't prepare a presentation until you know the audience, the place, and (of course) the content!
For example if there is a data group
Then deleting the last course that contains a particular instructor also wipes out the data about the instructor.
The cure is normalization.
Given 2NF data then each data group will have a prime key and attributes that are determined by the whole of that key.
Therefor look at data groups that are not in the key in 2NF and that have attributes that act as keys to other attributes. In other words there are non-key functional dependencies.
Notice that all the attributes in the 2NF Course that depend on instructor_name move out of Course and into the new group Instructor.
The facts of interest are like this
Here is a list of entities:
Here are the functional dependencies between entities:
So, here is the ERD:
I hope this helps!
|1. Review topics taught||-||1|
|2. Write the questions||1||2|
|3. Review and mark up||2||1|
|5. Generate and publish mock||2||1|
|6. Print final||4||1|
Next step: draw UML activity diagram [ MakeFinal.png ] , then add durations [ MakeFinal2.png ] , then work out the earliest time transitions (arrows) can happen: [ MakeFinal3.png ] , then work out the latest times transitions can happen [ MakeFinal4.png ] , and finally high-light the critical path: [ MakeFinal5.png ] (Note use right click to pop these images into different windows).
Notes -- Analysis [ a1.html ] [ a2.html ] [ a3.html ] [ a4.html ] [ a5.html ] -- Choices [ c1.html ] [ c2.html ] [ c3.html ] -- Data [ d1.html ] [ d2.html ] [ d3.html ] [ d4.html ] -- Rules [ r1.html ] [ r2.html ] [ r3.html ]
Projects [ project1.html ] [ project2.html ] [ project3.html ] [ project4.html ] [ project5.html ] [ projects.html ]
Field Trips [ F1.html ] [ F2.html ] [ F3.html ]
[ about.html ] [ index.html ] [ schedule.html ] [ syllabus.html ] [ readings.html ] [ review.html ] [ glossary.html ] [ contact.html ] [ grading/ ]