Project Title: Development of AD change tracking prototype based on WMI queries

The Challenge

Existing product that we worked on already has the ability to provide information about changes in Active Directory. In addition to plain change tracking there was a need for information – who was responsible for a particular change. This may be done by checking audit events on server. The main problem was to link audit events to changes in AD – unfortunately audit events are more "low-level" then change events. So analysis algorithm must be implemented to recognize what change was made basing on audit events.

Main challenges were:

• no direct link between audit events and change events;
  
• distributed AD nature – to correctly determine some events information from different machines must be collected and analyzed;
  
• possible security issues must be carefully examined.

The Solution

A sub-team of an unusual nature was formed specifically for this task: a software developer working directly with a pure system engineer. System Engineer created specification based on his perception of the problem – a list of possible change events and matching audit events. Then together with the developer they reviewed this table and made analytical decisions on events in "ambiguous" situations. Then developer implemented the engine for analyzing audit events. Then QA cycle was run - SE tested this prototype and developer corrected problems until prototype run smoothly. As a result a prototype was developed which completely satisfied our client.

Tools and Technologies

C++ (VC 6.0)
QT – multiplatform GUI library
Database development – MSSQL
XML, HTML
Project control: version control, bug tracking, daily builds, developing specs before coding

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