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NE Technologies & DSET Corporation

August 1988 - April 2007

January 2005 – April 2007: 

Releasing LSOG 9 to 11 standards & Creating an LSOG Data Dictionary, UOM-LSR Committee of ATIS/OBF.

Environment: Eclipse Platform (MyEclipse, XML Modeling, and IBM Schema Validation), XMLSpy, MySQL.

I was part of the UOM-LSR working committee that takes directions from the LSOP committee (Local Service Ordering & Provisioning Committee). One such action was to create LSOG (Local Services Ordering Guidelines) XML schema document for industry use, ultimately to replace EDI. These LSOG schema documents defined business transaction sets (such as the LSR request and Directory Listing), respective forms, and associated data elements specified in the LSOP guidelines. These schema documents also defined the transport layer and covered extensibility requirements. The current schemas have been identified with potential problems – type heavy, circular references, and way too complex to implement. I was given the responsibility of preparing a comprehensive data dictionary for Local Service Ordering. This work was partially completed and was expected to be fully complete by end of 2006. Subsequent to this completion, a new schema model will be designed and developed for telecom industry use.   

The tech shift years

February - May 2006:

Service Bureau infrastructure setup and configuration for service providers - ATX, Broadview, Global Communications; Environment: Solaris 9, DSET’s ezGateway products

I lead a team of system and network administrators in setting up a service bureau using Sun Enterprise and IBM Blade servers. This service bureau catered to small (regional) service providers by offering ordering gateways and network interfaces for electronic bonding with the incumbent local exchange carriers, long-distance carriers, and other service providers. Work also involved monitoring transaction downloads from customers, validating accuracy of transactions, ensuring delivery to trading partners, receiving responses back, checking for rejects and errors, and uploading the responses back to customers. Each customer had highly secure, intrusion proof data partitions, and secure VPN access was made available to their users.

April 2005 - September 2006:

Application re-architecture of DSET’s ezLocal 4.0.0 Gateway.

Environment: J2EE, Weblogic Server, JMRI, Mercator, Interactive Agent, JMS, SOAP/WSDL, Windows, Solaris, Oracle.

The ezLocal Gateway is a mediation server between competitive local exchange carriers (Cox, mPower, Choice One, TDS Metrocom, and Eschelon etc.) and ILEC’s (the Baby Bells - Bellsouth, Qwest, SBC, and Verizon) providing electronic bonding interface between business applications for the purpose of wholesale trading. The new ezLocal 4.0.0 Gateway was based on J2EE and designed and developed using Weblogic Server platform 8.1. Development was done on Windows and deployment on the Solaris platform. EDI transport module involved design, development and testing of new XSD/EDI maps, integrating the maps with the Interactive Transport (Upstream Interface Module) agent for sending (and receiving) EDI transactions to (and from) the ILECs. I was responsible entirely for this component. Mercator Java APIs were extensively used for data mapping and transformation. The ezLocal gateway Mercator map design is a complex process involving “conversion maps” to take care of legacy systems. The entire map design was done on Windows 2000 using Mercator Design Studio, and tested on a Solaris 9 platform. Mercator Java APIs were used in the EDI transport module to invoke the maps and perform data mapping and transformation. This product is in production since September 2006.

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Feb 2004 - March 2005:

Development of ezPreorder Gateway application.

Environment: Mercator, J2EE, Weblogic Server, JMRI, Interactive Agent, JMS, SOAP/WSDL, Windows, Solaris, Oracle.

The ezPreorder Gateway is an electronic bonding interface designed to handle pre-order transactions for wholesale trading. Work involved re-modeling of an existing gateway and porting it to Weblogic Server platform 8.1. I led a team of 10 engineers in developing this product. The project consisted of four distinct modules based on a J2EE MVC (Model/View/Controller) architecture – (i) the Web Services Interface (on a Web Server), (ii) Session Beans & GUI JSPs (both in a Web Application Container), (iii) Core gateway EJBs (within an EJB Container) and (iv) an Enterprise Information System tier (Oracle 9.2.0.6 database). Re-modeling involved these essential tasks:

  • Redesign the database schema by merging different ILECs (Bellsouth, SBC, etc.) tables into a single table and moving static data to external configuration files.

  • Develop a consistent GUI interface for all ILECs across all services.

  • Separate EDI transport module from Core gateway (required as the older gateway had to be re-compiled for even minor Mercator map changes)

 

I contributed to data modeling, security and access control, user management, and designed the EDI transport modules. Data modeling involved extending the UOM-LSR-PO schema to ILEC-specific data fields, notifications (errors, rejects, responses), and the transactions. Security and User management involved (a) deriving a security policy from the Weblogic security and authentication services, (b) defining granularity of access (c) implementing the security policy, and (d) controlling the security policy. The implementation provided access to gateway components using an SSL license. The EDI transport module involved the design, development, and testing of new XSD/EDI maps, integrating the maps with the Interactive Transport (Upstream Interface Module) agent for sending (and receiving) EDI transactions to (and from) the ILECs. I was responsible entirely for this component. Mercator Java APIs were extensively used for data mapping and transformation. 

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October 2000 to June 2001:

HFC-EM (Hybrid Fiber Coaxial – Element Management) broadband system for AT&T Cable (now Comcast), Telcordia, Piscataway, NJ. 

Environment: DSET Toolkit, JBroker, HP 11i aCC, Java and Oracle.

I led a team of six engineers and completed a part of the Element Management System project for Telcordia Technologies, New Jersey. This project was for the redesign and development of an existing Broadband system based on the DSET Toolkit. The redesign and development involved various components including GUI changes and the use of CORBA as an interface between different modules. The porting of the EMS Manager from a DCE-RPC/DSET V4.2.2 environment to a CORBA/DSET V5.0.1 platform took nine months to develop, one year to test, and three months to deploy.

 

The development work was in the Element Manager Layer of the Hybrid Fiber Coaxial Broadband network. Our software was present in two components of the system – the Communications Server module and the Internal Representation Translator module. The Communications module was responsible for a Q3 interface establishing ACSE associations and invoking ROSE operations on cable network elements (GDMO Agents on ADC’s "triple-play" multi-port cable boxes). The IRT (Internal Representation Translator) module was responsible for converting management commands (FCAPS) into CMIP protocol data units. The upstream interface between the management clients and the DSET modules (IRT/Communications) was through a CORBA/IDL interface.

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In October 2004, the HFC-EM broadband system was first deployed in Los Angeles for 5 Million subscribers successfully.

April 1999 – September 2000:

Local Service Management System, DSET Corporation, Dallas & New Jersey.

Environment: C/C++, TCL/TK, DSET Toolkit, Versant OODB, Solaris.

I was part of a team that successfully deployed Local Service Management Systems for Aerial, Alcatel, and Nortel STPs (Signal Translation Points).  My job included debugging field problems and giving feedback to the development and testing teams. I was involved in testing application modules of LSMS with emphasis on performance, stress, and load testing – modules included Global Title Translations, CLASS, LIDB, and Number Portability databases. I have in-depth knowledge of Number Portability Functional Requirements Specifications, Interface Interoperability Specifications, and the associated System Test Plans. This work also included developing requirements, formal system test plans, and automated test scripts. I have also prepared maintenance and troubleshooting documents for the LSMS Gateway application.

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March 2003 - July 2003:

NPAC Simulator LNP Test Extensions (LTE) enhancements to 3.1 for Neustar Inc.

Environment: HP-UX, HP aCC (C/C++), Perl, TCL/TK, DSET Toolkit.

I completed an enhancement for the LNP Test Extension Suite to conform to the NANC specifications 3.1 to provide additional features and functionality for Neustar Inc. (Number Portability Administration Center). Work consisted of:

  • Requirements gathering, analysis, and design of new enhancements to LNP Test Extensions (LTE) application used by Neustar to test Inter-Operability Interface Specifications between telecom carriers.

  • Design configuration files and start-up options.

  • Develop new application modules using DSET Toolkit, C language (with some TCL/TK scripts), and PERL.

  • Develop detailed System test documents and prepare new NANC 3.1 Test Suites.

  • Generation of Installation Guide and User Guide

  • Implement in production systems; train users.

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