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Custom code management & tools

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Presentation on Custom code management & tools held by Timo John at #sitHH 2015

Why is it worth to invest on custom code?
How can we manage our custom code with SAP tools?
What tools are provided?

Veröffentlicht in: Technologie
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Custom code management & tools

  1. 1. Custom Code Management Tools @Timo_John 27.06.2015
  2. 2. How does your Custom Code look like in all your SAP and non SAP systems? 27.06.2015 Custom Code Management Tools Seite 2 src1 : SAP AG page 9
  3. 3. Motivation 27.06.2015 Custom Code Management Tools Seite 3 src1 : SAP AG page 4
  4. 4. AGENDA 27.06.2015 Custom Code Management Tools Seite 4 Motivation1 Clone Finder3 Code Metric Tool5 Usage & Procedure Logging2 ABAP Test Cockpit6 SQL Performance Tuning Worklist7 Interface Analysis4 Closure8
  5. 5. Custom Code Management What is it? 27.06.2015 Custom Code Management Tools Seite 5 src1 : SAP AG page 4
  6. 6. Motivation Custom code is the most expensive part of the software 27.06.2015 Custom Code Management Tools Seite 6 src1 : SAP AG page 7
  7. 7. Motivation Low usage and quality of custom code drives costs 27.06.2015 Custom Code Management Tools Seite 7 src1 : SAP AG page 7
  8. 8. Motivation Main benefits for reduced custom code objects 27.06.2015 Custom Code Management Tools Seite 8 • Less maintenance and adjustment efforts for custom code • Less security-, destabilization-, data consistency risk • Less testing effort • Less complexity Reduce src1 : SAP AG page 9
  9. 9. Getting started How do I manage my custom code? 27.06.2015 Custom Code Management Tools Seite 9 STEP 1 Analyse custom code in system(s) based on actual usage: Most usage in the system?  Usage, but not core business  Not used  STEP 2 Identify the pain points in - fix them Security Performance Maintenance should be decommissioned If the budget allows it; clean up UPL CCAPPS / ATC
  10. 10. Getting started Where can I start Custom Code Management? 27.06.2015 Custom Code Management Tools Seite 10 • Tools shipped with SAP Netweaver • Custom Code Apps by SAP • ABAP Test Cockpit / Code Inspector • SQL Monitor & SQL Performance Tuning Worklist • Coverage Analyser • Custom Code Lifecycle Management by SAP Solution Manager • 3rd party tools
  11. 11. Custom Code Apps CCAPPS - Tools that help you 02.07.2015 Seite 11 • Set of powerful programs • Take your time Custom Code Management Tools
  12. 12. Usage & Procedure Logging What code is executed in production systems? 02.07.2015 Seite 12 • Monitors executed functions • Integrated in CCLM of Solution Manager • Different aggregations • Long term evaluation possible • Kernel function - No measurable performance impact neither CPU nor runtime1 1) src3 : SAP AG page 7 Custom Code Management Tools
  13. 13. Usage & Procedure Logging Display UPL Data 02.07.2015 Seite 13 • Find code that is used most • Identification of code that is not used with manual work - • Find used EXITS and Enhancements • Use UPL List for ATC object sets • Currently no user segmentation like provided by SCOV src3 : SAP AG page 7 Custom Code Management Tools
  14. 14. Custom Code Apps CCAPPS - Tools that help you 02.07.2015 Seite 14 • Set of powerful programs • Take your time Custom Code Management Tools
  15. 15. SAP Clone Finder Where do we have copy & paste coding? 27.06.2015 Custom Code Management Tools Seite 15 • Copy of SAP code with modifications • Z-Code that is cloned in same / other packages • Persistency of results • Clones across systems • Remote compare
  16. 16. SAP Clone Finder Result List 27.06.2015 Custom Code Management Tools Seite 16
  17. 17. SAP Clone Finder Result 27.06.2015 Custom Code Management Tools Seite 17 • Copy of SAP code with modifications • Z-Code Clones in same / other packages
  18. 18. Custom Code Apps CCAPPS - Tools that help you 02.07.2015 Seite 18 • Set of powerful programs • Take your time Custom Code Management Tools
  19. 19. SAP Interface Analysis Result 27.06.2015 Custom Code Management Tools Seite 19 • In which SAP Tables are my Z-Function Modules registered? • Use of unreleased FMs • List of Enhancements / Badis … • Usage of obsolete Objects • Reports that use SAP Object that have changed after Z-Object.
  20. 20. SAP Interface Analysis Result List 27.06.2015 Custom Code Management Tools Seite 20
  21. 21. Custom Code Apps CCAPPS - Tools that help you 02.07.2015 Seite 21 • Set of powerful programs • Take your time Custom Code Management Tools
  22. 22. SAP Code Metric Tool What is the most complex code in one section? 27.06.2015 Custom Code Management Tools Seite 22 • Analyses the code for static metrics • List all SAP modifications • ( incl. Exit - coding ) • Limitations: • No detection of complexity across modularisation units
  23. 23. SAP Code Metric Tool Identification 27.06.2015 Custom Code Management Tools Seite 23 Lines of coe / number of statemts - what is the biggest codings? Complexity ( conditions / decisions ) - where is the “spaghettiest” code? Database interaction - who is reading / writing DB? Autors / Version / Changes - which code was fixed most? …
  24. 24. SAP Code Metric Tool Identification 27.06.2015 Custom Code Management Tools Seite 24 Mehr Details über die Liste
  25. 25. SAP Code Metric Tool Identification 27.06.2015 Custom Code Management Tools Seite 25
  26. 26. SAP Code Metric Tool Alternative : Code Inspector Metrics 27.06.2015 Custom Code Management Tools Seite 26 Metrics: Max nesting, long coding block, comments, others • Less Information available compared to Code Metric Tool • Not so handy in use • Can be used to create tends charts if executed regularly (Excel)
  27. 27. ABAP Test Cockpit Use ATC to analyse trends based on statistic 27.06.2015 Custom Code Management Tools Seite 27 • Schedule ATC periodic runs to monitor trends in the coding • Use stable check variant • Combine Information with Code Inspector Metrics (Nos / Loc ) • ATC messages per number of statements; lower is better
  28. 28. ABAP Test Cockpit Use ATC to analyse trends based on statistic 27.06.2015 Custom Code Management Tools Seite 28 09.06.2015 19.06.2015 2.597Prio1 / 116.359Nos = 2,23% 2.650Prio1 / 117.775Nos = 2,25%
  29. 29. ABAP Test Cockpit - Evaluation bonprix Z-Tool to analyse ATC result trends 27.06.2015 Custom Code Management Tools Seite 29 • In which package are the most ATC findings / exemptions? • Comparison between packages • Trends • Usage of Pragmas
  30. 30. SQL Performance Tuning Worklist Where do we waste performance? 27.06.2015 Custom Code Management Tools Seite 30 1. Start SQL Monitor on productive system 2. Merge with Coverage Analyser data from test system 3. Merge with ATC findings from development system 4. Inspect results in development system SWLT What Code is working on which tables hard and has ATC Issues?
  31. 31. SQL Performance Tuning Worklist Select screen 27.06.2015 Custom Code Management Tools Seite 31 Select data to include in evaluation
  32. 32. SQL Performance Tuning Worklist Identification 27.06.2015 Custom Code Management Tools Seite 32 See the results of used data in one place
  33. 33. SQL Performance Tuning Worklist + UPL Identification 27.06.2015 Custom Code Management Tools Seite 33 Found performance Issue within 10 minutes
  34. 34. SQL Performance Tuning Worklist Second Example 27.06.2015 Custom Code Management Tools Seite 34
  35. 35. Closure There tools that help you out! 27.06.2015 Custom Code Management Tools Seite 35 src1 : SAP AG page 4 Why do we do it? • Less maintenance and adjustment efforts for custom code • Less security-, destabilization-, data consistency risk • Less testing effort • Less complexity Reduce PLEASE DO TESTING WITH BUSINESS!
  36. 36. Questions & Links links & text to scan 27.06.2015 Custom Code Management Tools Seite 36
  37. 37. Questions & Contact Information 27.06.2015 Custom Code Management Tools Seite 37 src1 : SAP AG page 9 @Timo_John Custom Development ABAP bonprix Handelsgesellschaft mbH Haldesdorfer Straße 61 22179 Hamburg http://scn.sap.com/people/timo.john
  38. 38. Resources 27.06.2015 Custom Code Management Tools Seite 38 scr1: Custom Code Management – Decommissioning[PDF] SAP 2014 scr2: Custom Code Management Custom Code Apps [PDF] SAP Active Global Support scr3: CCM Usage & Procedure Logging[PDF] SAP Active Global Support Usage & Procedure Logging [SCN] SCN 2015
  39. 39. VIELEN DANK FÜR IHRE AUFMERKSAMKEIT!

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