custom code management & tools

Custom Code Management Tools

@Timo_John

27.06.2015

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

Motivation



AGENDA


Motivation1

Clone Finder3

Code Metric Tool5

Usage & Procedure Logging2

ABAP Test Cockpit6

SQL Performance Tuning Worklist7

Interface Analysis4

Closure8

Custom Code Management

What is it?



Motivation

Custom code is the most expensive part of the software



Motivation

Low usage and quality of custom code drives costs



Motivation

Main benefits for reduced custom code objects


• Less maintenance and adjustment efforts for custom code

• Less security-, destabilization-, data consistency risk

• Less testing effort

• Less complexity Reduce


Getting started

How do I manage my custom code?


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

Getting started

Where can I start Custom Code Management?


• 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

Custom Code Apps

CCAPPS - Tools that help you

02.07.2015 Seite 11

• Set of powerful programs

• Take your time


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


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



Custom Code Apps


02.07.2015 Seite 14


• Take your time


SAP Clone Finder

Where do we have copy & paste coding?


• Copy of SAP code with modifications

• Z-Code that is cloned in same / other packages

• Persistency of results

• Clones across systems

• Remote compare

SAP Clone Finder

Result List


SAP Clone Finder

Result


• Copy of SAP code with modifications

• Z-Code Clones in same / other packages

Custom Code Apps


02.07.2015 Seite 18


• Take your time


SAP Interface Analysis

Result


• 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.

SAP Interface Analysis

Result List


Custom Code Apps


02.07.2015 Seite 21


• Take your time


SAP Code Metric Tool

What is the most complex code in one section?


• Analyses the code for static metrics

• List all SAP modifications

• ( incl. Exit - coding )

• Limitations:

• No detection of complexity across modularisation units


Identification


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?

…


Identification


Mehr Details über die Liste


Identification



Alternative : Code Inspector Metrics


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)

ABAP Test Cockpit

Use ATC to analyse trends based on statistic


• 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

ABAP Test Cockpit

Use ATC to analyse trends based on statistic


09.06.2015 19.06.2015

2.597Prio1 / 116.359Nos = 2,23% 2.650Prio1 / 117.775Nos = 2,25%

ABAP Test Cockpit - Evaluation

bonprix Z-Tool to analyse ATC result trends


• In which package are the most ATC findings / exemptions?

• Comparison between packages

• Trends

• Usage of Pragmas

SQL Performance Tuning Worklist

Where do we waste performance?


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?


Select screen


Select data to include in evaluation


Identification


See the results of used data in one place

SQL Performance Tuning Worklist + UPL

Identification


Found performance Issue within 10 minutes


Second Example


Closure

There tools that help you out!



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!

Questions & Links

links & text to scan


Questions & Contact Information



@Timo_John

Custom Development ABAP

bonprix Handelsgesellschaft mbH

Haldesdorfer Straße 61

22179 Hamburg

http://scn.sap.com/people/timo.john

Resources


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

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/90f3e740-f05d-3210-62ab-d8d383735c50?QuickLink=index&overridelayout=true&59661390722567

https://websmp208.sap-ag.de/~sapidb/011000358700000426882012E

https://websmp104.sap-ag.de/~sapidb/011000358700000427102012E

http://scn.sap.com/docs/DOC-54826

VIELEN DANK FÜR IHRE AUFMERKSAMKEIT!

custom code management & tools

Technology

motivation custom code

custom code objects

identification of code

copy of sap code

sap netweaver custom

modifications zcode

party tools

sap ag page