Legacy Application Modernization

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Legacy Application Modernization
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Legacy Application Modernization
Presented by
Idit BermanSolutions Director Modern Software
Technologies, Ltd. (MOST)
Jay AvilevInternational Sales Manager Modern
Software Technologies, Ltd. (MOST)
Daniel J. SycalikProject ManagerTreehouse
Software, Inc. (TSI)
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Agenda

• Goals
• Challenges
• Solutions
• Questions

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Goals
Business drivers to modernization

• Standardization of IT infrastructure
• Simplified support with fewer technologies
• Better utilization of technical personnel
• Operational efficiencies
• Agility to respond faster to market changes and
  demands for new functionality
• Requirements for new capabilities such as Web
  Enablement

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Goals
How do we modernize?

• How do we preserve our investment?
• How do we reduce the cost and impact to users?
• How do we preserve business logic?
• How do we preserve our data?

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Data Challenges

• Transform non-relational data structures
• Minimize performance impact to production systems
• Minimize system downtimes
• Reduce learning curve
• Reduce data discovery time

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Reengineering Challenges

• Pseudo-conversational transaction handling
• System Variables
• NATURAL 4GL functions
• loop management
• report screen titles
• window controls
• Preservation of NATURAL STACK
• Co-existence

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How Do We Modernize?

• tRelational for ADABAS data analysis, modeling,
  and mapping
• Data Propagation System (DPS) for ETL and CDC
• OnTarget Relational for transforming
  NATURAL/ADABAS applications to NATURAL/DB2
• OnTarget Reengineer for reengineering
  NATURAL/ADABAS applications to COBOL/DB2

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tRelational DPS
How do we transport our ADABAS data?

• Modeling and Mapping
• Extract, Transform, and Load (ETL)
• Change, Data, Capture (CDC)

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tRelational Data Analysis and Modeling
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tRelational Statistical Analysis
This screen shows descriptor/superdescriptor
usage statistics to determine candidate Primary
Keys and indexed columns.
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tRelationalPC - Example Auto Generation
Auto Generation Example Five tables with Primary
Key and Foreign Key constraints, and the added
DPS Sequencer (MU or PE occurrence).
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DPS Materialization (ETL)
DPS Parameters
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DPS Propagation (CDC)
DPS Parameters
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OnTarget
How do we transform our ADABAS application?

• Transforming and Reengineering NATURAL/ADABAS
  Applications
• Preserve Business Rules/Logic

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OnTarget Reengineer Solution
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OnTarget - Solution Architecture

BUSINESSCONTROLLER
BUSINESS LAYER
BUSINESS LOGIC PROCESSOR
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OnTarget Solution Architecture

BUSINESSCONTROLLER
BUSINESS LAYER
BUSINESS LOGIC PROCESSOR
DATA ACCESS CONTROLLER
ADABAS
DATA LAYER
DB2
DATA ACCESS MODULES
VSAM
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OnTarget -Solution Architecture
SEND MAP RETURN TRANSID
TRANSACTION
CICS BMS - HTML -
PRESENTATION LAYER
RECEIVER
SENDER
BUSINESSCONTROLLER
BUSINESS LAYER
BUSINESS LOGIC PROCESSOR
DATA ACCESS CONTROLLER
ADABAS
DATA LAYER
DB2
DATA ACCESS MODULES
VSAM
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OnTarget - Solution Architecture
SEND MAP RETURN TRANSID
TRANSACTION
CICS BMS - HTML -
PRESENTATION LAYER
RECEIVER
SENDER
BUSINESSCONTROLLER
BUSINESS LAYER
BUSINESS LOGIC PROCESSOR
RUNTIME MANAGER
STORAGE MANAGER
DATA ACCESS CONTROLLER
ADABAS
DATA LAYER
DB2
DATA ACCESS PROCESSOR
VSAM
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Project Overview
How do we modernize?

• Assessment Phase
• Data Analysis
• Application Assessment
• Conversion Phase
• Database Design
• Implementation -- May be Phased (partition of the
  application)

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Summary of Benefits
Why use a product solution?

• Reduce risks
• Reduce timeline and costs
• Proven methodologies
• Reliable and consistent
• Project may be implemented in parallel with full
  synchronization

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Are we on target?
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Questions and Comments
?
For more information, contact
Martin SprattMarket Segment Manager IBM (309)
797-7312 sprattm_at_us.ibm.com
Jay AvilevInternational Sales Manager MOST 972-3
-911-5504 jay.a_at_mosteam.com
Mitch DoricichSales ManagerTreehouse Software,
Inc. [phone] ext. 226 mdoricich_at_treehouse.c
om