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Paul Donohue

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Top Stories by Paul Donohue

JP Morgan in London recently used PowerBuilder to implement an XML interface between a Web-based bond trading system and one of their back-office systems. This is the first of two articles that describe how this system was developed. Some Background Trading bonds in Europe was a very old-fashioned process involving many manual processes and disparate systems. When a dealer wanted to purchase a bond they would contact a bank, such as JP Morgan, by telephone or fax. The details of the trade would be written down and then entered into a back-office system. The dealers, banks, and clearinghouses all had computer systems but little information was communicated electronically. The same deal might be entered into three different systems before it was settled. The major players in the European bond market (JP Morgan, Deutsche Bank, and Citibank) invited a British software h... (more)

Interfacing PowerBuilder with the Web Part 2

This is the second of two articles describing how JP Morgan in London developed an XML interface between a Web-based bond trading system and one of its back-office systems. Part 1 (Vol. 8, issue 8) focused on parsing the XML file; Part 2 shows how to write an NT service in PowerBuilder. Why Use an NT Service? JP Morgan's XML interface has to perform three core functions: Process incoming XML messages. Watch for state changes in the database. Process outgoing XML messages. These tasks had to be performed 24/7, without human intervention, in a secure and reliable manner. The ideal s... (more)

Interfacing PowerBuilder with the Web Part 2

This is the second of two articles describing how JP Morgan in London developed an XML interface between a Web-based bond trading system and one of its back-office systems. Part 1 (Vol. 8, issue 8) focused on parsing the XML file; Part 2 shows how to write an NT service in PowerBuilder. Why Use an NT Service? JP Morgan's XML interface has to perform three core functions: Process incoming XML messages. Watch for state changes in the database. Process outgoing XML messages. These tasks had to be performed 24/7, without human intervention, in a secure and reliable manner. The ideal s... (more)

Interfacing PowerBuilder with the Web Part 1 of 2

JP Morgan in London recently used PowerBuilder to implement an XML interface between a Web-based bond trading system and one of their back-office systems. This is the first of two articles that describe how this system was developed. Some Background Trading bonds in Europe was a very old-fashioned process involving many manual processes and disparate systems. When a dealer wanted to purchase a bond they would contact a bank, such as JP Morgan, by telephone or fax. The details of the trade would be written down and then entered into a back-office system. The dealers, banks, and c... (more)