Architeture influence MDM Data Modeling??

Hi,
I understand If I have MDM SP05 then I can utilize some good functionalities of EP, Java Webdynpro or SAP NW CE, Webservices and BPM. and If same applications I integrate with MDM SP03 then I will loose this functionalities. Will this have any impact / influence on my Data Model designing decisions. What will be the change?
Cheers,
Rajesh

Hi Rajesh,
I don't think you have to think from that perspective. When you say Data Modelling - it is related to repository structure i.e. fields and tables.
Scenario 1 - You don't have any information about upcoming version
In this case since you have no idea what new version would consists of hence there is no point in thinking about data modelling. You can go ahead with the most optimized model based on your current requirements
Scenario 2 - You have some idea about the new features of the new version
Still I don't think you need to consider data modelling because new features might be in the form of new java classes or new iViews or may be introduction of new data type, etc. In all cases you cannot change your current data model.
It's always better to have POC and Live on same version so that things can be reused.
I have just shared my views and didn't provide any solution
Regards,
Jitesh

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MDM Data model design for Main table visa vis lookup table

Hi ,
I would like to know whether the legal entities or Address table which are common for all MDM main tables like Customer ,Vendor,Material,Business Partner etc can also become a main table when their attributes are around 30-40 range.
Is it a sound design approach to make Company table with about 50 attributes and say address table with 20 attributes as Main table and replicate a small company-id table with 2 or 3 attributes to link to the main table(company)? This will ensure replicating that small table(company-id) to all other Main tables(customer,vendor,......) instead of replicating that big company table as lookup for all main tables?
Thanks in advance for any idea or feasibility comments.
-reo

Hi, Deepak
>>> - How can I populate the data in the lookup table at the same time when I am populating the main table ? I have only the XML's that correspond to the main table . I don't have seperate data for the lookup tables .
I don't think you can populate both main table and all fields of lookup tables at the same time, i.e. using same map. You can consider 2 options to upload all information you have:
1) If your XML file contains data you would like to upload to lookup tables, you can upload it to MDM lookup tables with several maps using same XML and choosing different sections of that XML corresponding to different MDM lookup tables.
2) Also you can upload main table simultaneously with lookup table entries (using same map), but in this case new lookup table entries will only contain display field values that you mapped. To do this you should use 'Add' value mapping functionality for fields that you mapped to lookup tables.
>>>- Can I use the standard maps available for import in the business content of material repository in MDM ?
1) In case you have material master repository delivered by SAP and you use XML files which structure corresponds to SAP predelivered XSD schemas then you can use these maps undoubtedly.
2) If your repository is based on SAP predelivered, but you changed it ,you should adjust these maps due to differences in repository structure and XML files structure.
3) If you created your repository from scratch you should consider option of making your own import maps.
Regards,
Vadim Kalabin

Basic questions on data modeling

Hi experts,
I have some basic questions regarding data modeling within MDM. I understand the available table types and the concept of lookup fields. I know that the MDM data modeling concept is different to the relational concept. But having a strong database background my first step was to design a relational data model which I would like to transfer to a MDM repository. Unfortunately I didn't found good information material on this. So here are some questions maybe you can help me:
1) Is it the right approach to model n:m relationships with multivalued lookup fields? E.g. main table Users with lookup field from subtable SapAccounts (a user can have accounts in different SAP systems, that means more than one account).
2) Has a record always be unique in MDM repositories (e.g. should we use Auto ID's in every table or do we have to mark a combination of fields as unique)? Is a composite key of 2 or more fields represented with marking these fields as unique?
3) The concept of relationships in MDM is only based on relationships between single records (not valid for all records in a table)? Is it necessary to define all relationships similar to the relational data model in MDM? Is there something similar to referential integrity in MDM?
4) Is it possible to change the main table to a sub table later on if we realize that it has also to be used as a lookup table for another table (when extending the data model) or do we have to create a new repository from scratch?
Thank you for your answers.
Regards, bd

Yes you are correct. It is almost difficult to map relational database to mdm one. But again MDM is not 'just' a database. It holds much more 'master' information as compared to any relational db.
1) Is it the right approach to model n:m relationships with multivalued lookup fields? E.g. main table Users with lookup field from subtable SapAccounts (a user can have accounts in different SAP systems, that means more than one account).
Yes Here you need to use MV look up tables or can also try Qualifier tables if it gets more complex
2) Has a record always be unique in MDM repositories (e.g. should we use Auto ID's in every table or do we have to mark a combination of fields as unique)? Is a composite key of 2 or more fields represented with marking these fields as unique?
Concept of uniqueness differs here that you also have something called Display Fields (DF). A combination of DF can also be treated as Unique one. For instance while importing records if you select these DF as a combination, you will eliminate any possible of duplicates based on this combination. Auto Id is one of the ways to have a unique id once record is within MDM. While you use UF or DF to eliminate any possible duplicates at import level
3) The concept of relationships in MDM is only based on relationships between single records (not valid for all records in a table)? Is it necessary to define all relationships similar to the relational data model in MDM? Is there something similar to referential integrity in MDM?
Hmm... good one. Referencial Integrity. What I assume you are talking is that if you have relationships between tables then removing a record will not be possible as it is a foreign key for some record. Here MDM does not allow that. As Relationships within MDM are physical and not conceptual. For instance material can have components. Now if material does not exist then any relationship to components is not worthwile to maintain. Hence relationshsip is eliminated. While in relational model relationships are more conceptual. Hence with MDM usage of lookups and main table you do not need to maintain these kind of relationships on your own.
4) Is it possible to change the main table to a sub table later on if we realize that it has also to be used as a lookup table for another table (when extending the data model) or do we have to create a new repository from scratch?
No. It is not possible to convert main table. There is only one main table and it cannot be changed.
I went for the same option but it did not work. What I suggest is to look up your legacy system one by one and see what fields in general can be classified as Master, Reference, Transactional - You will start getting answers immediately.

Data Model Exporting - MDM to Erwin or another data model tool

I would like to export the latest MDM physical data model in production to any erwin modelling tool or any othe data modelling tool

To export the schema of an MDM repository to an XML file:
1. In the Console Hierarchy tree, right-click on the MDM repository whose schema you want to export and choose Export Repository Schema from the context menu, or select the tree node and choose Repositories ® Export Schema from the main menu.
If the top-right pane is currently displaying the list of MDM repositories, you can also right-click on the repository in the grid and choose Export Schema from the context menu.
2. Click Save to close the dialog and export the schema.
Schema files are stored in XML format in a user-defined location using a user-defined filename. The file contains the schema definition only; no table or field content.
http://help.sap.com/saphelp_mdm550/helpdata/en/f2/2f21039e9146098e7b238f1a4c8e5e/content.htm
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Custom Data Model Document/Link MDM

Hi Expert,
We implement MDM in this year.
we want create custom data model. Is any SAP document/link for custom data model and load data to custom data model?
Need your response.
Thanks and Regards

Hello,
To create Data Model, you can refer to MDM Console Guide, to download http://service.sap.com/installmdm71.
To load data from an SAP System we have IDoc, and ABAP Proxies, for this we require an Middleware tech, SAP PI is recommended as it come with pre-delivered object that can be used.
If you need more clarity, do post your query
Regards,
Abhishek

What are the steps needs to be perform to define a data model

What are the steps needs to be perform to define a data model
a. Information Gathering
b. Hardware & Software
c. Structure the Information MDM
d. Transfer into a Physical Model BW data model
e. Explore use of existing model Business Content

Hi Siva,
 Very first activity is Proof of concept (POC), here we have to show How BW works for clients Reporting requirement during POC we as BW consultants need to creat some sample BW back end objects and also some reports based on business requirement. This is very crucial stage as Client Judge wethere BW would meet his demands. If every thing is fine then next step is Bidding.
After Bidding the contract then actual Project intiates. from here we follow ASAP methodology.

Project Preparation
Here Senior Consultant would go to Client place for Business Process Transistion and to know in what way the Architectue should be set up so here Basis People will come into picture.
Blue Print
Transistion could be understood by BRD (Business Requirement Documents) BRD states what is exact requirement and it is given by End users.
 By seeeing thr BRD's we as BW consultants must prepare APPlication Design Documents . The Application Design Documents states all the Technical aspects that needs to be performed as BW backend and also as well as Frontend.
Realization Phase
Here as BW consultants we must start confuguring as mentioned in ADD's by taking care of all performance aspects, once all the configuration are done we do Unit testing. unit testing is an activity where we check all the design process wether it running correct or not. After unit testing we move the design objects to Qulaity for Integration Testing.
Testing
 Here end user will check all the objects, reports on end to end basis. after integration testing is done then UAT ( User acceptance Testing) would come into picture where user check each process and sign off.
Go live
Here all the object will be moved to Production where end users and power users can start working on the system. intially for some days Development team would be taking care of all support activites there after it will be transitoned to support team.
Hope It helps you.
Assign Points if it usefull
Regards
Sujan

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Hi,
Can any one point me the step by step to connect, retrieve data from SAP MDM with NetWeaver Developer studio..
I have installed NWDS and MDM 5.5 SP06 .. I tried by importing jar files in to NWDS preferences.. But I am unable to connect to MDM.. I copied the code and pasted in NWDS but all the methods, imports are in error status..
Thanks
Rajeev.

Hi Rajeev,
In addition to Ravi's answer for MDM - NWDS you need to install JDK 1.5 on your machine before NWDS 7.0/7.1
also you must have MDM_JAVA_API and MDM_JAVA_WD_FRAMEWORK components needs to be deployed on your track.track specifically NWDI I am stating.
some external lib files may or may not be required to be deployed on the track.
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you can follow the below link as well more information on NWDI
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Deep

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What I am trying to do is change the caption of a button to a value in my Data Connection (sample XML Data). So I am using the Data Model from the DOM to change the caption and I am getting a value which is good to see. The problem is its the same first value over and over as my subform repeats instead of moving to the value of the next record. I don't believe its because of the event I'm running it under since I've changed that multiple times without any "new" results.
Does anyone have any suggestions of what I am doing wrong?

We did it. We chose another naming convention and only set up XI and MDM.
I would do only DEV and QA.Then it depends on your goal. the only thing, Dont map the users credentials to your other SAP BI structure.
In a perfect world, i would have doubled the logical database instance but i m not sure about your objectives.

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hello all,
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i want to know if there are any basic tutorials or examples of how to get, for example, read all the records in the product table and how to search and get a result set, like on name or id, etc.
just some basic read and search examples to introduce me and get me started. if you know of any, it will be much appreciated.
thanks very much,
mm

Hi Mike,
please have a look here:
http://help.sap.com/saphelp_mdm550/helpdata/en/46/281bc8218b14dbe10000000a155369/frameset.htm
The corresponding sources can be downloaded from this page:
http://service.sap.com/installMDM
--> MDM 5.5 SP05 - Java API Migration Guide or MDM 5.5 SP05 - Java API
and the latest Javadoc can always be found here:
https://help.sap.com/javadocs/MDM/current
Kind regards,
Andreas

BOM...data model

Hi,
Anyone have tried BOM in MDM?? Well I am trying to integrate with a PLM system to handle a Product Master which also incudes some BOM materials. I will appreciate if you can share some tips for data model and challenges faced.
Cheers,
Rc

Hi Rajesh
Refer to the following link, namely section 4 (use case 5).
http://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/80765a21-78f3-2b10-74a2-dc2ab57a1bd2?quicklink=index&overridelayout=true
Document titled - "SAP Netweaver How to guide - Best practices for Repository Migration from SAP Netweaver MDM 5.5 to SAP Netweaver MDM 7.1"
Regards
Neelesh

BW Star Scheme & Multi dimensional Data Modelling

Hi BW Experts,
Can any one please let me know when i have to check in help.sap or serivices.sap
for detailed info on BW Star Scheema and Multi dimensional Data Modelling and how it is used in BW.
Please update me where i have to check for this info
Thanks

hi...
star schema..
Please check the threads below..
Differences between Star Schema and extended Star Schem
What is the difference between Fact tables F & E?
Invalid characters erros
mdm..
http://help.sap.com/bp_biv133/documentation/Multi-dimensional_modeling_EN.doc
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Excel Workbook with Excel Data Model stored on SharePoint - daily refresh

I'm not sure if this is exactly the right forum but I'm hoping that someone here can either answer or point me in the right direction.
I have an Excel Workbook with an Excel Data Model.
The Excel Data Model uses SQL to contact our data warehouse and pull through data into tables.
We are storing the Workbook on a SharePoint site and viewing it using Excel Services.
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Is this possible with a workbook that has an Excel Data Model (I've seen lots of posts that relate to workbooks with connections to tabular models).
Thanks
Paul

Hi Paul,
I have answered this issue in this thread that you posted in SQL Server PowerPivot for SharePoint forum, please see:
http://social.msdn.microsoft.com/Forums/en-US/9627939c-e9f1-48ae-a6ed-0c238d8f2d69/excel-workbook-with-excel-data-model-stored-on-sharepoint-daily-refresh?forum=sqlkjpowerpointforsharepoint
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http://social.msdn.microsoft.com/Forums/en-US/home?forum=sqlkjpowerpointforsharepoint
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Hi Guys,
The MDM ABAP API involves creation of a DDIC structure in SRM. This structure should have the same fields with the MDM table fields. We would like to ask the corresponding ABAP Data Types for the following MDM Data Types.
MDM SRM
1. Look up (flat)
2. Look up (taxonomy)
3. Look up (heirarchy)
4. Look up (qualified flat look up)
Any significant inputs on this?
Thanks and regards,
RE

Hi,
Refer the below link. This is from the MDM Reference guide and contains the sample source code as well for almost all the things like creating repository, creating tables and fields etc. It would be helpful to you.
http://help.sap.com/saphelp_mdm550/helpdata/en/47/5fd3f7cbd75518e10000000a421138/frameset.htm
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Data Modeler : Modifying the Table Report layout

Hi ,
I'm using SQL Data Modeler (DM) 4.0 EA .
I used the File -> reports option to generate the reports on Table and in the report
1) I couldn't see the column data type ? (Refer below table ) , Is there any options to bring on the Data Type in the Report ?
No
Column Name
PK
FK
M
Data Type
DT
kind
Domain Name
Formula
(Default Value)
Security
Abbreviation
1
ID1
P
Y
(10)
LT
2
ID2
F
Y
(10)
LT
3
ID3
Y
(1)
LT
4
ID4
Y
(10)
LT
5
ID5
F
(20,4)
LT
2) In options to manage the Table report (Reports -> Manage). Currently I can only remove a heading (like Descriptions Notes ,columns,column comments.). Is there is any way to customize the report in such a way that I can remove some columns (mostly the empty ones) from the report and add the column comments along with the column table than a new column comments table.
Please let me know ,is there is an option to customize the report .
Note: I even tried generating the report using the search then report , but it doesn't give a complete report (i was only able to generate a report on column or table name or constraints , not all together.)
Thanks,
Srinivasan.K

Thanks for the immediate reply.
I checked on the DM again, the report comes good for the one which has the data type . But now all my data type changed to UNKNOWN and lokks like ,due to this my table report is coming without the "Data Type".
Can you please help me in fixing this unknown data type issue ?
Table report for the ones with proper Data type:
Columns
No
Column Name
PK
FK
M
Data Type
DT
kind
Domain Name
Formula
(Default Value)
Security
Abbreviation
1
ID1
Y
NUMERIC (10)
LT
2
SCRIPT
Y
VARCHAR (1024)
LT
3
UPGRADE_S
Y
VARCHAR (10)
LT
4
UPGRADE_D
Y
VARCHAR (250)
LT
5
UPGRADING_F
Y
VARCHAR (20)
LT
6
TIMESTAMP2
Y
Timestamp
LT

Architeture influence MDM Data Modeling??

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