Fortis Bank Nederland “Enterprise Service Bus”

ESBDue to the expected integration of Fortis with ABN-AMRO the need arose to be prepared for integration. The ESBM project was setup to deliver an Enterprise Service Bus based on WebServices with Soap over http, WS-Security and MQSeries.

Mr Ritter was asked to design and develop an ESB implementation with the following requirements:

  • Based on the IBM Websphere Messagebroker platform
  • Define modulair building blocks which can be easily replaced and changed
  • Support for webservices (WS-Security)
  • Http and MQ transport
  • Support for error tracking and tracing

In two months he delivered a proof of concept version showing its ability to integrate an Oracle application with a mainframe application. During the demonstration performance test where executed using the SoapUI WebService test tool.


Ford “Visteon seperation”

FKV4_ford_logoAs part of its efforts to separate from Ford, Visteon is undertaking a Clone project to replicate the legacy applications and systems that Ford currently provides to Visteon. Teams are working on an aggressive timeline to separate in 18 months.

Mr Ritter was selected for his mainframe skills to participate in the process of testing the mainframe jobs scheduled by a CA7 job scheduler. Besides his main assignment he also assisted in solving some issues with MQseries coomunication on the IBM mainframe.

Capgemini Academy “SOA Solutions for Integration Architecture”

Together with two other colleagues Mr Ritter developed a three-day Capgemini Academy course “SOA Solutions for Integration Architecture.  The training includes theory and interactive workshops. Mr Ritter contributed by developing course material based on his practical experience. He acted as a trainer in the first training sessions. This course is still available at the academy.

Click to show course details

Click to show course details

The training includes:

  • Positionering binnen IAF
  • System Domain Architectuur
    • Legacy structuren and Client/Server, batch georiënteerde systemen
    • Multichannel architecturen op basis van Java en .NET
    • Technologieën en producten
  • Enterprise Domain Architectuur
    • Service Oriented Architecture als basis voor loosely coupled architecturen, Messaging and Message Brokers
    • Technologieën en producten
  • Data-integratie structuren
    • Operational Datastore en Data Warehouse

IB-Groep “Troubleshoot E-Service”


DUO / IB-groep

The IB-groep is a governmental organisation for student administration. The IB-Groep E-service offers direct web access to student information via the internet.  The end users on the website complained about problems getting to their data. Mr Ritter was asked to find the root cause of these problems.

The website directly connects via an MQSeries based middleware infrastructure to their back office systems running on IBM mainframeAS400 and Windows 2000. IB-Groep experienced a wide range of errors, from lost messages to timeout situations and lost connections. Mr Ritter was asked to determine the cause of all these problems, find solutions and to give advice for improving the infrastructure.

Mr Ritter first setup a measurement system to collect information on current system behaviour. This included network- , computer system traces and response time overviews. This information was presented in spreadsheet format to management on a daily basis showing availability and periods of system outage. This proved to be a very fruitfull approach. Mr Ritter concluded from all collected data that there was a serious network problem, some internal systems had performance problems and the Service Level Agreement with its external mainframe supplier was not met.

Meetings were arranged with the external mainframe supplier to improve performance to aggreed SLA levels. Also network and system specialists where involved to find the bottlenecks and improve system performance. Mr Ritter coordinated work between these specialists and conducted further tests. All problems were identified and solved. Mr Ritter compiled a final report on the current state of the infrastructure and improvements to be made.

Winterthur (Reaal)

Winterthur is looking for solutions to integrate its existing mainframe applications with the internet for building new Business to Consumer applications. The goal of the pilot project was to determine the right direction and final requirements for legacy enablement. Mr Ritter was responsible for designing and developing the complete solution based on IBM MQSeries middleware and the MQSI Message Broker. A proof of concept was delivered and demonstrated to management.

RAET Mainframe services

IBM_zEnterprise_MainframeComputer Science Coorporation is based in Apeldoorn (formerly named RAET) and supports a large IBM mainframe environment for running “in service” applications.

Mr Ritter started as a Network engineer in a SNA/VTAM network environment. He developed maintenance procedures based on TSO/ISPF scripts, created automated maintenance jobs, simplified and tuned network topology. This resulted in improved network performance and he reduced the procedure for introducing new network users from one week to 6 hours. Besides his  daily job as a Network engineer he also worked on a internal project “Release”. Release is now the required procedure for the installation of new software and promotion through the test and production phases.


Netview NPDA

His last project is the introduction of automated operations using IBM Netview application. This resulted in a now fully operational Automated Operations systems based on Netview. This system is activated at system startup (IPL) and controls and monitors all application activity on the mainframe including the external network.


The main console


The bridge

Any alert message is processed and appropiate actions are taken to resolve problems when possible or inform the operator when manual intervention is required.