Legacy to SOA: What You Need To Know

Legacy to SOA: Issues & Solutions
A A pptem lis can Sy tioatio n Splic ystAp em B
Application System C
What exactly is in
your programs and data?
Alan KaplanPresident / CTO Automation Discovery,
Xactis Corporation Validation and Transformation
Supporting HP, Sun, EDS, Merging Business and Technical Knowledgeand other Prime Contractors Legacy to SOA: What information needs discovery?
Step 1 Step 2 Step 3
Data
Application Information Database Information Knowledge & Expertise
View and baseline all View and baseline the The written / spoken
source code that creates metadata by checking all language business rule is
the data element records that contain the documented with subject
of concern. data element of concern. matter expertise.
Business Rule - Technical Data rules (metadata) are Explaining the "know-how" - Definition: Viewing the entire inferred from analyzing all rules & business processes source code segment that records containing the variable behind the variable / data field of sets the value of a variable of of concern -- by data profiling concern, merging views concern, showing all inputs, and metadata enhancing with for business & finance outputs, and related rules. data quality assessment and managers, with the technical statistics to identify all issues/ documentation for IT.Establish a baseline to under- corruption for the variable / data stand the important rules and field of concern.functionality in existing code.
Then monitor / test only the
changes. Legacy to SOA
Who in the company Managementneeds discovery?
Business analystsTools, Methods and Services
are provided for creating and Technical analysts
sharing a Rules and
Metadata Repository - a Architects (especially for SOA)
knowledge base that will be
used by: Programmers
Testers
Data specialists
IT Governors
Auditors (Regulatory Compliance) Legacy to SOA
Why discovery? Legacy Modernizing, Migrating & Re-Architecting
Business, Finance, IT and into a Web-enabled Services Framework (SOA)
Compliance Departments Systems Integration (EAI & EII) with very high
seek legacy understanding. data quality
The ROI is immediate and Improved Business & Compliance Intelligencereadily apparent when
Enterprise Business Rule Business Continuity from reverse-engineering,
and Metadata Repositories documenting information only possessed only
serve as a baseline to assist: by Subject Matter Experts (SME's)
Ease of maintenance/use fewer maintainers/
more uptime
Increased quality of testing/fewer testers
Audit trail of all software and metadata changes Legacy to SOA: Automation Discovery & Validation Tools
Source Code Analysis Toolset - Parsing the language
to be eliminated or transformed
Data Profiling for validating rules that are producing
useable information - also for Data Quality Assurance
and Remediation
Metadata statistics analysis "Data Report Card"
for data quality assessment, remediation, and
enhancing metadata
Rules & Metadata Repository, with:
. Management and Business Analyst views
. Programming rules from source code
. Data Rules (Metadata) from data profiling
Code transformation tools - FROM the legacy
language and TO the languages involvedLegacy to SOA: Source Code Analysis Toolset
A warehouse of
data fields, their rules,
attributes and
relationships.Legacy to SOA: Data profiling report of issues
56 Data Quality Issues Identified - Field By Field Listing
Id Subject Status Priority Created Owner Owned Assigned to Assigned Due Publish-date able?
Record in ZoneSupplier not joinable to 19/04/2005 Charles 19/04/2005 2 ZoneSupplierRange Opened Low 3:03:58 PM Edwards 3:03:58 PM Y
3 Barcode field is unique in BarCode Opened Low 22/04/2005 Charles 22/04/2005 Y table 1:05:47 PM Edwards 1:05:47 PM
4 UnitOfTrade mostly unique- what do Opened High 22/04/2005 Sam 22/04/2005 Y dups represent? 1:08:31 PM Banks 1:08:31 PM
5 Barcode has many diff... [download for more]