1. Enterprise Transformation Methodology PIs Leo Mark - Georgia Tech, (leomark@cc.gatech.edu) Spencer Rugaber, Georgia Tech, (spencer@cc.gatech.edu) Wayne Summers, Columbus State, (summers_wayne@colstate.edu) GRAs John Gibby, Georgia Tech Harihar Karthik, Columbus State Robert Liu, Georgia Tech Sponsors AFLAC Georgia Research Alliance

2. Problem Constantly evolving technologies Lagging behind in migration, resulting: Legacy information systems –Complex, undocumented, monolithic –CICS UI -> Web access –VSAM and DB2 databases -> XML –Cobol business logic -> Java or ?

3. Solution Need a methodology for transforming legacy information systems Need guidelines consisting of: –Separating the user interface aspects of software from the business logic –Extracting the enterprise data model –Specifying and encapsulating provided services –Creating, maintaining and evolving the enterprise integration architecture

4. Case Study AFLAC Policy Master System –Generate invoices from policies, processes payments, and reconciles invoice payments. Mainframe-based architecture –JCL Batch Processing of jobs Target architecture: J2EE Output from the case study: Methodology + Prototype

5. Approach Dimension 1: Process –Process definition –Activity measurement –Process verification Dimension 2: System –Business rules –Data modeling –User interface Project Phases (incremental) –P1: Exploration and Definition –P2: Refinement and Alpha test –P3: Implementation and Beta test

6. Research Questions Reverse engineering Iterative transformation Architectural inversion Technology transfer