knowledge discovery in sap bw 3.5: the analysis process
TRANSCRIPT
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Glen LeslieSAP Labs
Product ManagerSAP NetWeaver BW
Knowledge Discovery in SAP BW 3.5:
The Analysis Process Designer
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SAP AG 2003, Title of Presentation, Speaker Name / 2
§§ Analysis Processes Analysis Processes -- OverviewOverview
§§ Analysis Process DesignerAnalysis Process Designer
§§ Analysis Process vs. Data Staging ProcessAnalysis Process vs. Data Staging Process
§§ Integration of Data Mining Workbench into APDIntegration of Data Mining Workbench into APD
§§ Introduction in Data Mining MethodsIntroduction in Data Mining Methods
§§ Summary and OutlookSummary and Outlook
Agenda
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Motivation
Explore your data
thoroughly
Explore your Explore your data data
thoroughly thoroughly Recognize
relationships in your data
Recognize Recognize relationships relationships in your datain your data
Use advanced transformations and analytical
methods
Use advanced Use advanced transformations transformations and analytical and analytical
methodsmethodsPersist
Analysis Results
Persist Persist Analysis Analysis ResultsResults
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Credit Score
èYou know the credit behaviour of your clients
èScore the credibility of your clients (credit rating)
Business Cases
Advanced ‘Slow Sellers’ Analysis
èGroup your customers in an ABC-analysis
èFind A-customers who did not buy during the last month in order to start a marketing campaign
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Analysis Process
Gain New Insights Into
Your Data
Gain New Gain New Insights Into Insights Into
Your Data Your Data Explore meaningful relationships between
your data, which are hidden or too complex to be uncovered through pure observation
(OLAP analysis) or intuition
FeaturesuAdvanced analytical methods (data mining, …)uBlock transformationsu(Persistent) (sub-)query results
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“Knowledge Discovery in Databases”
There are several divergent KDD methodologies / models. Nearly all can be summarized / synthesized into the following 5 main phases:
Task Analysis Preprocessing Data Mining Postprocessing Deployment
ü Task
ü Business Understanding
ü Problem definition
ü Analysis of requirements
ü Data Selection
ü Data Cleaning
ü Data Preparation
ü Data Transformation
ü Model Develop-ment (Training)
ü Running Models (Prediction)
ü Output Generation
ü Evaluation/ Analysis of Results
ü Deployment of results
“Knowledge Discovery in Databases” (KDD) is a process-based approach to the search for potentially high-quality knowledge in source databases
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The Analysis Process Designer: KDD Compliance
Update and Analysis in SAP BW
Preparation
Selection
Transformation
x²+y²+2dx+2ey+f=0
(x,y)=F(x²,y²)
SAP BW
Campaigns-Target groups
Transfer results into & apply in
OLTPs (e.g. SAP CRM)
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A Basic Analysis Process
Sources
Transformation
Target
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Business Benefits
The most important potential which can be realized with this improved information are:
ü Cost reduction (TCO)
ü Revenue improvement (ROI)
ü Improved customer experience and -satisfaction
By being 100% integrated into the SAP BW, the Analysis Process Designer (incl. Data Mining Features) also guarantees, that only a single database is accessed and not different data tables in different source system. This significantly decreases interfacing problems as well as related issues with data integrity, quality and system performance.
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§§ Analysis Processes Analysis Processes -- OverviewOverview
§§ Analysis Process DesignerAnalysis Process Designer
§§ Analysis Process vs. Data Staging ProcessAnalysis Process vs. Data Staging Process
§§ Integration of Data Mining Workbench into APDIntegration of Data Mining Workbench into APD
§§ Introduction in Data Mining MethodsIntroduction in Data Mining Methods
§§ Summary and OutlookSummary and Outlook
Agenda
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Analysis Process Designer Integration
Analysis Process
Target- BW- CRM
Source- BW- Flat File- 3rd Party
Transformations Data Mining- SAP- 3rd Party
BW 3.0B
BW 3.5
Pre-Process(TX: RSANWB)
Analyze(TX: RSDMWB)
Analysis Process Designer
Data Mining
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The Interactive Workbench of the APD (SAP BW 3.5)
Analysis Process
Repository
Drag & DropContext Menu for Display and
Settings
Transaction:RSANWB
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Analysis Process Designer
Sources Transformations
Data MiningTargets
DB Table
Flat File
Master Data
Query
Aggregate
Routine
Sort
Filter
Transpose
Drop Column
Merge
ABC Class.
Scoring
Regression
DecisionTree
3rd Party
AssociationAnalysis
Clustering
Master DataODS Object
CRM System
InfoProvider
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Characteristic: Read data from an InfoObject Master Data
InfoProvider: Use an InfoCube, ODS object, or Multi-Provider as source
Query: Read data from a query
Flat File: Read data from a flat file
Data Base Tables: Read data from a database table
APD – Sources (Step 1)
Read from the following sources :
Based on the task or problem at hand, data must be provided which is statistically and semantically relevant. The APD provides a mechanism for delivering this data in an easy to use, graphical environment. Subsequent steps in the process can then be assured of a firm bases for continued analysis.
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APD Data Transformation (Step 2 & Step 3)
Preparation (Step 2) :
To maintain the quality of the analysis process results a clean,complete and error free database is crucial. In order to ensure quality, the APD provides basic data operations to prepare and cleanse the raw data.
Transformation (Step 3) :
With the help of the robust transformations it is possible to discover and make hidden information relationships apparent.
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Filter: Restrict the amount of data to be processed
Aggregation: Group and aggregate data according to selected fields
Join: Merge data from two different sources
Sort: Sort the data according to the selected fields
Transpose into columns: Transform flat data records into a list
Transpose into rows: Transform a list into flat data records
Hide columns: Hiding of entire columns
Use the following operations to prepare/transform your data:
APD – Data Transformation I: Preparation (Step 2)
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ABC Classification: Calculation of ABC Classification
Regression: Application of linear/non-linear Regression algorithm
Clustering: Application of Clustering algorithm
Scoring: Application of “Weighted Score Table“ algorithm
Decision Tree: Application of Decision Tree algorithm
Data Mining: Application of external (non-SAP) Data Mining Models
Routine: Custom transformation via ABAP routine
Data Mining models can also transform data!
APD – Data Transformation II (Step 3)
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APD – Visualization of Intermediate Results
è Display Data: the data per “process node“ can be displayed at any time in tabular format.
è Elementary Statistics: Advanced visualization methods for a quick view of basic properties and quality of the interim results per “process node”. This functionality includes histograms, distributions and basic statistical measures like means, standard deviations, correlations and visualizations.
è Calculate Intermediate Results: the interim results of each “process node” can be stored temporarily for performance reasons.
A cleansed, complete and error-free database is crucial for meaningful results in an analysis process. This is realized step-by-step within the APD. At the same time it must be possible to check each process step individually.
To facilitate the discovery process the APD provides visualization tools with which intermediate results can be easily displayed or the quality of the data can be analyzed:
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APD – “Data Display“
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APD – Basic Statistics
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APD – Basic Statistics
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ODS Object: Load results back to a transactional ODS; from here updates into other SAP BW Data targets can be performed.
Master Data: Update InfoObject master data
OLTP System: Transfer results to a OLTP system, e.g.CRM system
Association Analysis: Training/Application of the Association Analysis algorithm
Regression: Training of linear/non-linear Regression algorithm
Clustering: Training of Clustering algorithm
Decision Tree: Training of Decision Tree algorithm
APD – Data Targets (Step 4)
Write results back to the following targets :
Data Mining Models as Data Targets :
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§§ Analysis Processes Analysis Processes -- OverviewOverview
§§ Analysis Process DesignerAnalysis Process Designer
§§ Analysis Process vs. Data Staging ProcessAnalysis Process vs. Data Staging Process
§§ Integration of Data Mining Workbench into APDIntegration of Data Mining Workbench into APD
§§ Introduction in Data Mining MethodsIntroduction in Data Mining Methods
§§ Summary and OutlookSummary and Outlook
Agenda
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ETL versus APD
n ETL Processu Extraction: data procurement, that is selection of
relevant data from source systems and supply of the data work area; requires delta capabilities
u Transformation: processing and massaging data to specified structure and quality requirements of the data in the workspace
u Loading: bringing the data physically from the workspace into the Data Warehouse
n Analysis Processu Creation of new information out of existing datau Transformation of datau Writing back new data to BW database or operational
system (CRM)
Similar functionalities, but different objectives.
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ETL versus APD
Source Systems Data Warehouse
ETL Process
Data Data New Data
APD Process
Data copies New Data
~ = +
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§§ Analysis Processes Analysis Processes -- OverviewOverview
§§ Analysis Process DesignerAnalysis Process Designer
§§ Analysis Process vs. Data Staging ProcessAnalysis Process vs. Data Staging Process
§§ Integration of Data Mining Workbench into APDIntegration of Data Mining Workbench into APD
§§ Introduction in Data Mining MethodsIntroduction in Data Mining Methods
§§ Summary and OutlookSummary and Outlook
Agenda
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What is Data Mining?
Data Mining: an analytical approach that looks for hidden information
patterns in large databases
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What is Data Mining?
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Data Mining in SAP BW APD data flows
APD
Task Analysis Preprocessing Data Mining Postprocessing Deployment
ü Task
ü Business Understanding
ü Problem definition
ü Analysis of requirements
ü Data Selection
ü Data Cleaning
ü Data Preparation
ü Data Transformation
ü Model Develop-ment (Training)
ü Running Models (Prediction)
ü Output Generation
ü Evaluation/ Analysis of Results
ü Deployment of results
Step 1: Select Data
Step 2: Preparation
Step 3: Transformation
CRMother Systems (e.g. CRM)
Step 4: Store/Transfer Data
SAP BW
Step 5: Deploy DataCamp.Targetgroups
ABC Analysis
A B C
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Top Five Reasons for Using SAP Data Mining
1. Fully integrated
2. Standard and out of the box functionality
3. Easy to use
4. Extensible with 3rd party tool connection
5. Delivered with best business practice scenarios
=Requirements Return
TotalCost ofOwnership
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1. Fully Integrated
Web shop
Campaign
Call Center
Analyze
DeploySAP BW
SAP CRMIntelligenceConnector
AnalysisProcessDesigner
DataMining
Measure InfoProviders
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2. Standard Functionality
DataMining
SAP BW
SAP CRM
n Time required to activate SAP Data Mining:
n Additional licenses required to be able to use SAP Data Mining:
00
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3. Easy to Use
Drag & Drop
Map Data Flow with
Arrows
Visualize Complete Data Process inSingle Screen
Double Click on Nodes to
Get Properties
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With BW3.5, SAP releases an API which 3rd party vendorscan use to connect their solution to the SAP Data Mining framework.
n User benefits from greater flexibility and choice in terms of data mining engines
n Additional algorithms and complementary functionality are offered
n Delivered connector by 3rd party minimizes cost and effort required for integration
n List of certified 3rd party vendors is available on SAP service marketplace
4. Extensible with 3rd Party (1)
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Complexity
BusinessNeed
SAP OLAP
SAP Data Mining
3rd Party Data Mining (with SAP Partners)
4. Extensible with 3rd Party (2)
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5. Delivered with Best Business Practice Scenarios
SAP delivers with BW ready to go and easily extensible reports, data infrastructure, and mining models for selected best business practice scenarios. The immediate benefits of using this business content are reduced implementation time and costs.
A few examples include:
n Churn Management: monitor, understand, predict and manage customer attrition behavior
n Cross Selling Analysis: discover cross-selling opportunities in your product and service portfolio
n Customer Migration Analysis: monitor changes in customer behavior by tracking segment migration over time
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SAP Data Mining < BW 3.5
£ Data Mining methods have been available in SAP BW since Release 3.0B:ð ABCð Association Analysisð Regression ð Decision Treeð Clustering
£ Training and application of the SAP Data Mining Methods via a separate Workbench (Data Mining Workbench)
£ single "Data Source“ à BW Query
£ Training, Evaluation and application of Data Mining Models via "Wizard“
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APD – Process Summary
Step 1: Select Data
Step 5: Deploy DataCampaigns-Target groups
CRMOther System (e.g. CRM)
Step 4: Store/Transfer Data
ABC Analysis-Customer
A B C
BW
Step 2: Prepare Data
Step 3: Transform DataSAP Data Mining Integrationè Analysis Process Designer
functions as a new, graphical Frontend for Data Mining to train and apply Data Mining models.
è Train Data Mining model (the model is a target node in the Analysis Process)
è Application of Data Mining models for prediction in Analysis Processes (the model is a transformation node in the Analysis Process)
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§§ Analysis Processes Analysis Processes -- OverviewOverview
§§ Analysis Process DesignerAnalysis Process Designer
§§ Analysis Process vs. Data Staging ProcessAnalysis Process vs. Data Staging Process
§§ Integration of Data Mining Workbench into APDIntegration of Data Mining Workbench into APD
§§ Introduction in Data Mining MethodsIntroduction in Data Mining Methods
§§ Summary and OutlookSummary and Outlook
Agenda
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Data Mining Methods - Explorative
A B C n 20% of customers generate 60% of sales
Clustering
ABCClassification
AssociationAnalysis
WeightedScore Tables
……
Gender
………………
IncomeAgeCustomer
……
Score
Weight
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Clustering
Cluster Distribution
Fields Used in Clustering
Distribution of Specified
Field
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ABC Classification
ABC Classes
Gain Chart
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Weighted Score Tables
Weighting SchemeSummary
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Association Analysis
List of Cross-Selling Rules
Probability Indicators
Export to CRM
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Data Mining Methods - Predictive
Historical
New Data
Historical
Historical
New Data
New Data
Train Model Evaluate
Model
Apply Model
1 2
3
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?Age
Sales
Complaints
# of Products
Gender
Income
Buy
Yes
No
Complaints
Gender
Income
Data Mining Methods - Predictive
>4<=4
MF
<=30 k >30 k
Regression
Decision Trees
No
No Yes
Yes
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Regression
Quality Measures
Coefficients for Linear
Regression
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Decision Trees
Distribution within Specified Node
Rule within Specified Node
Preview Pane
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SAP BW Advantages as a Data Mining Platform
n Tight integration with operational systemsn Reduction of processes and support staffn SAP BW Customers already own it!
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Closed-Loop Analytics with SAP Data Mining
From Diagnostic Analytics with Best-of-Breed…
… To Closed-Loop Analytics with SAP.
Transforming Insight into Action !
Data Mining
Data Store
OperationalProcesses
SAP BW SAP CRM
Data Store
OperationalProcesses
SAP BW
SAP CRM
Models
Results
Best-of-Breed Data Mining
Data Store
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Roles Required for Data Mining
BusinessAnalyst
StatisticianIT AdminBusinessAnalyst
Best-of-Breed Solutions SAP Solution
IT Admin
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SAP Data Mining vs. Best-of-Breed Solutions
SAP Data Mining may not have as extensive breadth of algorithms as best-of-breeds products have, but if you don’t need it, why pay for it?
SAP
BoB
Coverage ofAnalyticsNeed
BoB Functionality SAP Functionality
SAP
BoB
Offered Used Offered Used
+
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§§ Analysis Processes Analysis Processes -- OverviewOverview
§§ Analysis Process DesignerAnalysis Process Designer
§§ Analysis Process vs. Data Staging ProcessAnalysis Process vs. Data Staging Process
§§ Integration of Data Mining Workbench into APDIntegration of Data Mining Workbench into APD
§§ Introduction in Data Mining MethodsIntroduction in Data Mining Methods
§§ Summary and OutlookSummary and Outlook
Agenda
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SAP AG 2003, Title of Presentation, Speaker Name / 54
Outlook
BW Integration
l Process Chain Integration
l Data Targets: Flat File, InfoCubes
l Write Back to SAP operational systems
l Variables
Enhanced Transformations
l Formula Editor
l Prognosis
l Sampling, Binning, Normalization, ...
l Boolean Algebra: Union, Subtract, ...