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© 2013 IBM Corporation Reducing Cost with R in IBM Storage Products Manufacturing Elaine Jones Integrated Supply Chain Engineering
IBM Integrated Supply Chain © 2013 IBM Corporation 2ISC Engineering The Challenge Reduce cost of software tools used by Tape Head/Drive Engineering for data acquisition, analysis, and reporting. We had reduced the SAS license cost for the team to $54k/year. Dropped modules Cut the number of seats Can we eliminate this cost completely?
IBM Integrated Supply Chain © 2013 IBM Corporation 3 How we used SAS Started in 1997 Supporting tape head and drive manufacturing: from wafers to completed tape drives Electrical, magnetic and mechanical testing – over 1300 parameters Shop floor control: tracking by component and assembly serial numbers SAS provided a means to: Query DB2 databases and perform data exploration Combine and manipulate data from different databases Statistical Analysis: GRR, Regression, Process Capability Analysis Populate the data warehouse for automated Statistical Process Control (SPC) and on-demand SPC charts
IBM Integrated Supply Chain © 2013 IBM Corporation 4 Alternatives to SAS Solution from IBM Global Services Our organization would be charged Added dependency outside our control R Software NY Times article about R Software on IBMs internal homepage Identified two engineers in IBM Mainz, Germany who were using R. – They also had previously had used SAS
IBM Integrated Supply Chain © 2013 IBM Corporation 5 Exploring R Software as a Potential Replacement for SAS Demonstrated required capabilities: Query six different DB2 servers using IBM SQL Last or First record selection from a group (usually timestamp) Transpose data from wide to long, and from long to wide Export a file to be opened in Excel or JMP Run a script automatically Execute a batch file to FTP an output file to a remote server Load database connection details automatically when R is launched
IBM Integrated Supply Chain © 2013 IBM Corporation 6 Easing the Transition for end users Created connections file that is loaded when R is launched. Added to the.First function in the Rprofile.site file: Created qrY function to simplify RODBC functions:
IBM Integrated Supply Chain © 2013 IBM Corporation 7 Easing the Transition for end users qrY function handles the database connections, and returns helpful information to the user: Created DB2LIST function to r un a query using the values of a data.frame column as an input condition handy when list is from one database and data you want to pull is in another
IBM Integrated Supply Chain © 2013 IBM Corporation 8 Data Flow for SPC Control Charts Tape Parametric Data DB2 SPC Data Warehouse DB2 Web-based SPC Programs Run daily Extract data Transform data Export/Load SPC charts on-demand and scheduled runs SPC charts on-demand and scheduled runs Purpose: load summary data into data warehouse for SPC to support on-demand chart display and efficient automated detection of out-of-control conditions.
IBM Integrated Supply Chain © 2013 IBM Corporation 9 Data Flow for SPC Control Charts Tape Parametric Data DB2 SPC Data Warehouse DB2 Web-based SPC Programs Run daily Extract data Transform data Export/Load SPC charts on-demand and scheduled runs SPC charts on-demand and scheduled runs Could R handle this? 3 different servers in Singapore ~ 40 custom DB2 tables Over 3000 SPC charts 30 SAS Programs
IBM Integrated Supply Chain © 2013 IBM Corporation 10ISC Engineering Data Flow for SPC Control Charts Tape Parametric Data DB2 SPC Data Warehouse DB2 Web-based SPC Scripts Run daily Extract data Transform data Export/Load SPC charts on-demand and scheduled runs SPC charts on-demand and scheduled runs
IBM Integrated Supply Chain © 2013 IBM Corporation 11ISC Engineering Benefits Realized annual savings by dropping our SAS group license Retained control over the SPC process – no reliance on outside organizations Fewer lines of code in R scripts Access to all R packages Support through R-help support and stackoverflow.com Developed our own custom training program and R resource portal
IBM Integrated Supply Chain © 2013 IBM Corporation 12 Acknowledgments John Schexnayder Hans-Jüergen Eickelmann Thorsten Müehge Peter Golcher Darren Ellenburg Questions: Contact Elaine Jones
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