Best Practice at presentation layer .
1. Catalogue to map to one business layer and one BMM layer only .
2. Use Parent folder and sub folder to group fact and similar dimension together .
3. Avoid use of alias while adding new column in Presentation layer .
4. The column should be shorter alphabetically .
5. Get customer sign off about the column before building reports
6. Make proper use of permission in the PPL .
7. Don’t use “ in column .
8. PPL column name should not have same name as table name
9. Limit number of object in folder to 10 t0 12 .
10 Use object description
11-Remove the primary key column and other column
1. Catalogue to map to one business layer and one BMM layer only .
2. Use Parent folder and sub folder to group fact and similar dimension together .
3. Avoid use of alias while adding new column in Presentation layer .
4. The column should be shorter alphabetically .
5. Get customer sign off about the column before building reports
6. Make proper use of permission in the PPL .
7. Don’t use “ in column .
8. PPL column name should not have same name as table name
9. Limit number of object in folder to 10 t0 12 .
10 Use object description
11-Remove the primary key column and other column
Best Practice at BMM layer .
1.
Always use Start schema and
minimize snow flex .
2.
Create dimension hierarchies
for every dimension in BMM
3.
Define Key at each level of
hierarchies
4.
Combined all the attribute
that describe single entity into single
logical table.
5.
Never delete logical column
that map to key of physical DIM table
6.
Do not keep unwanted phycal
column in logical tables
7.
Whenever do necessary consistency
check right click on the changed business modal instead of going for full to avoid
time.
8.
Fix the warning if any don’t
ignore
Best Practice at Physical layer .
1.
Try to always import table
instead of creating to avoid data type and name issue
2.
For each DIM only one
primary key is must but for fact no need.
3.
If only composite key is available
create a single physical key and add all the composite into it
4. Avoid using complex join
in PH layer .
5.
Always use number – number join
6.
Facts should not be joined
.
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