3rd Annual Plex/2E Worldwide Users Conference Page based on Title Slide from Slide Layout palette....

3rd Annual Plex/2E Worldwide Users Conference

14A2E Data Model Cleanup

Darryl MillingtonHawkBridge Pty Ltd

September 21, 2007

Session Abstract

> There are many reasons for 2E data model cleanup, yet many developers often are unaware how to go about it.

> This session will provide some technical tips and techniques on accomplishing this in order to ensure performance and consistency for your generated 2E applications.

2 20 September 2007 6B - Picture This! Using 2E with Graphical Tools Copyright © 2007 CA

Speaker Bio

> Darryl has worked as a CA 2E developer since 1988 travelling extensively as an independent consultant throughout Australia, New Zealand, USA, UK and Asia.

> He is a regular speaker at CA conferences and has been speaking on CA 2E-related topics since 1991.

> [email protected]


Session Agenda

> Why Cleanup

> Benefits for a Cleanup

> What do you Cleanup

> How do you Cleanup

> Measuring Cleanup Success

> Q&A



Why Cleanup

> 10+ years of development in a single data model by many people

> Data models contain large numbers of redundant, retired and superceded objects

> Longer timeframes and higher costs to maintain objects no longer required and used

> Size of data models impacts performance of developers and increases generation times


Benefits for a Cleanup

> Data model size will be greatly reduced

> Lower ongoing project costs and timeframes

> Better quality documentation and understanding of development environment

> More accurate impact assessments and development estimates


What do you Cleanup

> Job Lists

> Model Object Lists

> Fields

> Conditions

> Files

> Access Paths

> Functions

> Action Diagrams


How do you Cleanup

> Step 1: Save a copy of the data model before cleanup so that you can recover from deleting incorrect objects

> Step 2: Rebuild *ALLOBJ model object list using: WARNING: Do not perform this on Change Control Models

CLRPFM YMDLOBJRFP

CALL YLODOBJH1I

> Step 3: Rebuild data model *USRSPC object(s) using: YDLTOBJTBL


How do you Cleanup

> Step 4: Remove data model inconsistencies: YCHKMDL in *UPDATE mode

> Step 5: Verify and fix data model consistency: YCHKMDL in *ANALYZE mode

> Step 6: Remove unwanted Job Lists: RMVM on all the YJOBLST* files in the data model

> Step 7: Remove unwanted Model Object Lists: YWRKMDLLST and option 4


How do you Cleanup

> Step 8: Remove ALL commented-out action diagram code HawkBridge have a custom program for this

> Step 9: Delete all unreferenced fields Y2 USER(*DSNR) OPNACC(*NO)

F7, F11 and Option D

> Step 10: Delete all unreferenced internal functions: YDOCURF OBJTYP(*FUN) OUTLST(MYLST)

YFLTMDLLST MDLLST(MYLST) GENATR(*INTFUN)

YEXCMDLLST MDLLST(MYLST) ERRLVL(*NOMAX) RQSDTA('YDLTMDLVSN OBJSGT(&Y@)')


How do you Cleanup

> Step 11: Delete all unreferenced non-current versions: YBLDMDLLST OBJNAM((*ALL *ALL *FUN)) MDLLST(MYLST)

CUROBJ(*NO)

YFLTMDLLST MDLLST(MYLST) CUROBJ(*NO)

YEXCMDLLST MDLLST(MYLST) ERRLVL(*NOMAX) RQSDTA('YDLTMDLVSN OBJSGT(&Y@)')

> Step 12: Loop back to Step 9 until no objects deleted

> Step 13: Delete all unreferenced access paths & arrays: YDOCURF OBJTYP(*ACP *ARR) OUTLST(MYLST)

YWRKMDLLST and option 24


How do you Cleanup

> Step 14: Delete all unreferenced conditions: YDOCURF OBJTYP(*CND) OUTLST(MYLST)

YFLTMDLLST FILTER(*OMIT) MDLLST(MYLST) OBJNAM((*ALL *ALL *CND)) OBJATR(VAL)

YFLTMDLLST FILTER(*OMIT) MDLLST(MYLST) OBJNAM((*ALL '*ALL values' *CND)) OBJATR(LST)

YWRKMDLLST and option 24


How do you Cleanup

> Step 15: Delete unused files: SELECT T01.OBJATR, T01.FIL FROM YFILDTARFP T01

WHERE T01.@@FIL NOT IN (SELECT T02.@@OBJ FROM YRELDTARFP T02 WHERE T02.RELCDE <> '005') AND T01.@@FIL NOT IN (SELECT T03.@@FIL FROM YMSGDTARFP T03)

Y2 USER(*DSNR) OPNACC(*NO)

’Rel Lvl’ = ’DFN’

Search for file defined as relation and use Option D


Measuring Cleanup Success

> Run the measures before and after cleanup

> Summarise Model Objects SELECT OBJTYP, OBJATR, COUNT(*) FROM YMDLOBJRFP

GROUP BY OBJTYP, OBJATR ORDER BY OBJTYP, OBJATR

> Summarise Function Complexity SELECT COUNT(*) FROM YMSGACTRFP ACT WHERE

ACT.ELMTYP = 'CND‘ AND ACT.@@ELM >= 1000000 AND ACT.@@SUB2 >= 0

> Summarise Model Library Size WRKLIBPDM and F14

Questions and Answers


3rd Annual Plex/2E Worldwide Users Conference

6BPicture This! Using 2E with Graphical Tools

Darryl MillingtonHawkBridge Pty Ltd

September 20, 2007

3rd Annual Plex/2E Worldwide Users Conference Page based on Title Slide from Slide Layout palette....

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