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Types of InfoObjects-Different types of InfoObjects SAP BI BW

Warm wishes to all readers again. Grt to see u all again.
Correct me if there are any mistakes pls.

The question may like this:

What are InfoObjects?
What are the types of InfoObjects?
What are Fixed Dimension InfoObjects, Can you say some of them? And how they differ from Characteristic InfoObjects and KF InfoObjects?

Business evaluation objects are known in BI BW as InfoObjects. These play vital/important role in modeling. Everything is based on InfoObjects we create. Business evaluation objects (for example, customers, and sales) are referred to as InfoObjects in BW. InfoObjects are the smallest components in BW. For exapmle, Business Object like customer, product, etc....

So what they are so used for?
They are used to structure the information that is needed to create larger BW objects, such as InfoCubes or ODS Objects or InfoProviders.

InfoObjects are divided into:
1.       Characteristic InfoObjects  (Diagram 1)
2.       KeyFigure InfoObjects (Diagram 2)
3.       Fixed Dimensions –SAP defined (Diagram 3)
a.        TimeCharacteristics
b.       TechnicalCharacteristics
c.        UnitCharacteristics

Types Of InfoObjects

1.       Characteristic InfoObjects: Objects that are used to calculate and analyze present Key Figures.
                Eg.           Sales Office: 0 SALESOFFICE,
                                Customer: 0CUSTOMER,
                                material: 0MATERIAL)
2.       Key Figure InfoObjects:
Data part of an InfoObject. They are quantifiable values. (provides the values to be evaluated)
                Eg.           Quantity Sold: 0QUANTITY,
                                Revenue: 0REVENUE)

3.       Time Characteristic InfoObjects :
Characteristics that are assigned to the dimension of time. Time characteristics form the time reference frame for   many data analyses and evaluations. they are delivered with Business Content & its not possible to define your own Time Characteristics.
                Eg.           calendarday: 0CALDAY: Time characteristics with largest granularity
                                calendaryear:0CALYEAR : Time characteristics with smallest granularity
                                Fiscal Year: 0FISCYEAR : Time characteristics with smallest granularity)
4.       Technical Characteristic InfoObjects:
Only of structural use within BW. These have an organizational function within SAP.
                Eg.           requestid: 0REQID
                                Changeid: 0CHNGID
                                (infoobject changeid delivers the numbers allocated during change runs)
                                (infoobject 0reqid delivers the numbers the system allocates when loading requests)
5.       Unit InfoObjects:
Units for the Key Figures. they enable keyFigure values to be partnered with the corresponding units in evaluations.
                Eg:           currency: 0CURRENCY
                                amount 0AMOUNT
                                unit: 0UNIT

Characteristi InfoObjects: (Diagram1 )
KeyFigure InfoObjects: (Diagram 2)

FixedDimension InfoObjects: (Diagram 3)

The vital/imprtance of InfoObjects  of Incan be evaluated by reading the below points:
Everything is based on InfoObjects!
The Communication Structure displays the structure of the InfoSource. It contains all (logically grouped) of the InfoObjects belonging to the InfoSource of the SAP (BW) System, like Chars & KeyFigure Objects.
Extract Structure is a record layout of InfoObjects.
Transfer Structure maps data source fields to InfoSource InfoObjects.
The update rules specify how the InfoObjects (Key Figures, Time Characteristics, and Characteristics) are updated in the DataTargets from the Communication Structure of an InfoSource. You are therefore connecting an InfoSource with an InfoCube or ODS object.
The update rules assign InfoObjects in the InfoSources to InfoObjects in data targets & establish many to many relationships between InfoSource & DataTargets.
Transfer rules are a set of transformations defining the mapping of fields available in a specific DataSource to the fields used in the InfoSource definition. We create transfer rules by assigning a data source to InfoSource and assigning InfoObjects to the fields.
From 3 types of transfer rules, you are only ever allowed to enter one which is InfoObject.
Routine: Conversion routines are ABAP programs that you can create yourself. The routine always refers to just one InfoObject of the transfer structure.
An InfoSource is a quantity of InfoObjects that belong together and that contain all the information available on a business process (for example, cost center accounting). The structure where the InfoObjects are stored is called a communication structure.
An InfoSource contains a number of InfoObjects which structure the information needed to create InfoCubes / ODS Objects in the SAP (BW) System.
Is used to load data from Communication Structure to Data Targets i.e ODS, Infoobjects, InfoCubes by using Update Rules.
The components of an InfoSource is
Communication Structure
InfoArea is used to organize InfoCubes & InfoObjects. Each InfoCube is assigned to an InfoArea.
Through IOC, each InfoObject is assigned to an InfoArea.

Thanks for reading

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