SAP BW SRM Workflow data model design
Hi All,
I have a requirement from my client to design SAP BW SRM Work flow report, in output user is interested for document flow/chain starting from Shopping cart (SC) - Bid invitation (RFx) - Bid (RFx responses) - Purchase order (PO) - Confirmation. There are standard datasources and DSO's for the same but I want to check experts ideas on data model design. I am thinking to build infosets on top of DSO's but it will impact Query performance as data volume for sure will be more and will increase down the line. In addition I need to consider below exceptions or restrictions as well:
1. Document may/may not start with SC for example one possibility is document start at SC and end at Confirmation or start at RFx and end at PO etc.
2. User is expected to see below various possibilities of document chain in report output:
SC - RFx - RFx responses - PO - Confirmation or
SC - RFx - RFx responses or
SC - PO - Confirmation or
SC - RFx - RFx responses - PO
SC - RFx or
RFx - RFx responses or
RFx or
RFx - RFx responses - PO or
RFx - RFx responses - PO - Confir or
PO - Confiramtion or
PO
your help and ideas on this is greatly appreciated
Thanks and Regards,
Reddy
Hi All,
Any inputs or ideas on the data model design? Thanks for your help in advance
Regards,
Reddy
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Performance impacts of attributes versus entities in data model design
I'm trying to understand the performance implications of two possible data model designs.
Here's my entity structure:
global > the person > the account > the option
Typically at runtime I instantiate one person, one account, and five option 's.
There are various amounts determined by the person's age that need to be assigned to the correct option.
Here are my two designs:
Design one
attributes on the person entity:
the person's age
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the person's option 4 amount
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the option's amount
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the person's option 3 amount if the option is number 3
the person's option 4 amount if the option is number 4
the person's option 5 amount if the option is number 5
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attributes on the person entity:
the person's age
attributes on the option entity:
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the option's option 1 amount
the option's option 2 amount
the option's option 3 amount
the option's option 4 amount
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the option's option 5 amount if the option is number 5
Given the two designs, I can see what looks like an advantage for Design one in that at runtime you have less attributes (6 on the one pension member + 1 on each of 5 options =11) than Design two (1 on the one pension member + 6 on each of 5 options = 31), but I'm not sure. An advantage for Design two might be that the algorithm has to do less traversing of the entity structure: the supporting rule table finds everything for the option's amount on the option.
Either way there is a rule table to determine the amounts:
Design one
the person's option 1 amount =
2 if the person's age = 10
5 if the person's age = 11
7 if the person's age = 12, etc.
Design two
the option's option 1 amount =
2 if the person's age = 10
5 if the person's age = 11
7 if the person's age = 12, etc.
Here it looks like the rulebase would have to do more traversing of the entity structure for Design two.
Which design is going to have better performance with a large amount of rules, or would it make a difference at all?Hi!
In our experience you only need to think about things like this if you were dealing with 100s or 1000s of instances (typically via ODS). As you have a very low number, the differences will be negligible, and you should (usually) go with the solution which is the most similar to the source material or the business user's understanding. I also assume this is an OWD project? Which can be even better, since the inferencing is done incrementally when new data is added to the rulebase, rather than in one "big bang" like ODS.
It looks like design 1 is the simplest to understand and explain. I'm just wondering why you need the option entity at all, since it seems like a to-one relationship? So the person can only have one option 1 amount, one option 2 amount etc, and there are only ever going to be (up to) 5 options...is that assumption correct? If so, you could just keep these as attributes on the person level without the need for instances. If there are other requirements for an option instance then of course, use them, but given the information here, the option entity doesnt seem to be needed. That would be the fastest of all :-)
Either way, as the number of instances is so low, you should have nothing to worry about in terms of performance.
Hope this helps! Write back if you have any more info / questions.
Cheers,
Ben -
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Hello,
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Hi All,
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Hello Experts,
I have a BW 3.5 AS IS system where I have a data flow
6Data sources---> 1 infosource-> UR> ODS> UR-> Cube
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What is the Best method to implement this.(If a start routine exist in AS IS in UR, then What i need to do to in BI 7.0 to implement this START routine as its realed to structure coming from infosurce)
Thanks alot for your suggestionsHello,
here is some points which can helps your requirements
The InfoSource is not mandatory anymore. However, they can be used eg where you need
InfoObject based information and this is not part of the DataSource.
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eg. A flexible infosource is necessary inorder to use currency or unit conversion from source Datasource-->define infosource as intermediate structure
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Hope this will helps you
Thanks
Ramesh. -
Workflow - data model creation
Hi
I have installed 10g r2 in a kubuntu system, and is ok. Also I have install OWF, but now I
have not idea about how install all tables, etc . owf engine need to work
Any hint please?
THANKS! :)Please use Oracle Workflow Configuration Assistant to create a Workflow schema and have the workflow DB objects created in it. Workflow Configuration Assistant can be invoked from $ORACLE_HOME/wf/admin/install there you might find a batch/shell script to invoke the Config Assistant.
Thanks - Vijay -
Query about Data Model Design, UPDATED_ON
hi on a *.ppt called ODTUG2007_Advanced_APEX.ppt, that i found on google <www.oracle.com/technology/products/database/application_express/ppt/ODTUG2007_Advanced_APEX.ppt>, i found a something that might be very interesting in using in my APEX app... it said something about some Standard Columns, and "phrases" (created_by, created_on, updated_by, updated_on) that i would like to see and learn how to implement.
So i do appreciate if anyone has got an example, or can explain them to me...
Best regards.
Jaison GonzálezJaison,
There's another way to do that might work for you:
1. Create the fields updated_by and updated_on in the table;
2. Create in the page the items PX_UPDATED_BY and PX_UPDATED_ON of type "Text field (saves state)";
3. Go to the properties of the item.
PX_UPDATED_BY
Source:
- Source Type: Database column;
- Source Value or expression: updated_by
- Post Calculation Computation: :APP_USER
Default:
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PX_UPDATED_ON
Source:
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Default:
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When the user submits the changes, the table fields are updated.
Regards,
Ricardo Stumpf
Brasília - Brazil
Message was edited by:
Stumpf -
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,
RajeshHi 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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