Defining the Solution
A. Datum is a growing company, and it understands the importance of avoiding poor design practices that can hamper growth. Database polling is a particularly good example of what not to do because it imposes a serious burden and prevents scalability beyond a small set of users.
With earlier programming technologies, instant notification would be unrealistic or prohibitively difficult and time-consuming to code. However, with .NET you can create a robust, high-performance solution with only a few ingredients: a central database, a client-servicing XML Web service, two independent Windows Forms applications, and a simple Message Queuing notification system. Figure 17-2 diagrams the proposed system, which is named Transact.NET. ...
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