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

which transformation should we use to get the 5th rank member from a table in informatica?can we achieve this in sql?

6 Answers   IBM,


Hi I have a source (flat file) like ID Name Attachments 101 abc [07012005072902]_CMM27-11-01 Page106 (2).pdf 102 bcd "[19012005124259]_Anfrage-Vendors.doc [19012005124336]_Anfrage.xls" 103 def "[19012006092602]_IMG_0310.JPG 19012006092631]_IMG_0311.JPG [19012006092702]_IMG_0312.JPG [19012006092727]_IMG_0313.JPG" But I need to generate duplicate records based on attachments column. Target (Table) like ID Name Attachments 101 abc [07012005072902]_CMM27-11-01 Page106 (2).pdf 102 bcd 19012005124259]_Anfrage-Vendors.doc 102 bcd [19012005124336]_Anfrage.xls 103 def [19012006092602]_IMG_0310.JPG 103 def [19012006092631]_IMG_0311.JPG 103 def [19012006092702]_IMG_0312.JPG 103 def [19012006092727]_IMG_0313.JPG 103 def [19012006092750]_IMG_0314.JPG 103 def [19012006092814]_IMG_0315.JPG Here no. of Attachments we can't decide because it is dynamic. It will be great if somebody help me on this. Thanks in Advance. ganga

2 Answers  


In joiner, how to load Master table in Target?

2 Answers  


Converting Rows to columns I have Relational source like his. JAN FEB MAR APR 100 200 300 400 500 600 700 800 900 100 200 300 I need to convert these rows into columns to the targe. MONTH TOTAL JAN 1500 FEB 900 MAR 1200 APR 1500 Please experts help me

8 Answers   HP,


What are the different types of repositories created using informatica?

1 Answers  


Explain why we use partitioning the session in informatica?

1 Answers  


What is persistent lookup cache?

1 Answers  


When to use normalization transformation other than cobol source?

2 Answers  


What is data transformation manager process?

1 Answers  


What does cheating measurement mean?

1 Answers  


Give one example for each of conditional aggregation, non-aggregate expression, and nested aggregation?

1 Answers  


Why update strategy and union transformations are active?

1 Answers  


Categories