Basic Concepts Brio 2002
Copyright © 2002, Brio Software Page 9
Specific Design Considerations
When you finally get around to designing your charts, pivots and reports, these
particular considerations should be foremost in your mind. They will help guide
your design decisions.
Design Considerations for Charts
Available design choices for chart sections include the following:
• Global vs. Local Computed Items
Think about the best place to create Computed Items before starting the
Chart design. Remember that items computed locally in the Chart
section only have available to them those fields that have been added to
the Chart Outliner. Globally computed items can even include database
server fields that are not included in the query itself (by using server-
based computed items).
• Starting “raw” vs. starting with a Pivot
Some charts may be easier to create by starting with a pivot and then
selecting the “Chart this Pivot” menu item from the Insert menu.
• 2-D vs. 3-D
Weigh the different effects each chart type has on the interpretation of
the data.
• Direct use vs. Embedded use
Remember that charts destined for embedding should be designed with
that purpose in mind. If you need two similar charts, one for embedding
and one for direct use, create one chart, then duplicate it.
Design Considerations for Pivots
Design choices for pivot sections include the following:
• Global vs. Local Computed Items
The same issues that pertain to computed items for charts apply to pivot
sections as well.
• Starting “raw” vs. starting with a Chart
Like pivots, starting with another section can be an easy way to create
charts. In addition to making the creation of charts easier, it also allows
for the creation of multiple “views” on the same data. This facilitates a
broader range of data interpretation possibilities.
• Using base values vs. using Surface values
By default, a pivot section reaches back to the Results or Tables section
from which it was created for all computations. This can sometimes
create what may look like strange values for certain computations.
(142 paginas)
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