what is the architecture of any Data warehousing project?

Answers were Sorted based on User's Feedback



what is the architecture of any Data warehousing project?..

Answer / veera reddy

Basically there are two types of architectures.
1. Top Down(Dependent) and 2. Bottom up(Independent)

In Top Down approach initially DW comes and then DM.
In Bottom Up approach intially DM comes and then DW.

Is This Answer Correct ?    17 Yes 1 No

what is the architecture of any Data warehousing project?..

Answer / praveen kumar

step-01------>source to staging
step-02------>staging to dimension
step-03------>dimension to fact

This is the general procedure.........

Is This Answer Correct ?    13 Yes 0 No

what is the architecture of any Data warehousing project?..

Answer / rekha

PROJECT PLANNING
REQUIREMENTS GATHERING ---PRODUCT SELECTION AND INSTALLTION

DIMESIONAL MODELING --- PHYSICAL
MODELING ---- DEPLOYMENT --- MAINTENANCE

IN EASY TREMS FOR DIMENSIONAL MODELING
1. SELECT THE BUSINEE PROCESS
2 IDENTIFY THE GRANINS
3 . DESIGN THE DIMENSION TABLE
4 . DESIGN THE FACT TABLE
ONCE THESE 4 STPE ARE OVER IT WILL MOVE TO PHYSICAL
MODELING
IN PHYSICAL MODELING U APPLY THE ETL PROCESS AND
PERFORMANCE TECHNOQUES .

Is This Answer Correct ?    3 Yes 0 No

what is the architecture of any Data warehousing project?..

Answer / bsgsr

i simply put this way.
source to staging
staging to dwh

Is This Answer Correct ?    2 Yes 1 No

what is the architecture of any Data warehousing project?..

Answer / kumarapillaietl@gmail.com

first we integrate data into source to staging tables, from staging we movie into work table at the data moment of stage to work we do all transformation logic , then from work table we load data into fact and dimention table using scd 2.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Informatica Interview Questions

if i hv 6 table as source table but can i make 12 as a dim table and 6 as fact table belongs to that src table.

0 Answers   iGate,


Write the program through which the records can be updated?

0 Answers  


How to extract original records at one target & Duplicate records at one target?

12 Answers  


Name 4 output files that informatica server creates during session running?

1 Answers  


Design time, run time. If you don't create parameter what will happen

0 Answers  






to improve the performance of aggregator we use sorted input option and use sorter t/r befor aggregator. But here we are increasing one more cache in our mapping i.e; sorter. So how can u convince that you are increasing the performance.?

3 Answers   IBM,


why dimenstion tables are denormalized in nature ?

3 Answers  


In EMP table, for those emp whose Hiredate is same, update their sal by "sal+500" or else for others keep the sal as it is, how to do it by SQL query

8 Answers   Cap Gemini,


How to load query faster,so that It will take less time to load?

1 Answers   BNP Paribas,


Can yoU use the maping parameters or variables created in one maping into another maping?

2 Answers  


What are some examples of informatica etl programs?

0 Answers  


What are the different types of olap? Give an example?

0 Answers  


Categories