1) My company is very concerned about the distribution and intellectual property restrictions that can come with using some types of open source software. I understand there can be restrictions on us even if we use a product that embeds such open source code. Many of your competitors use restrictive open source licenses. Should I be concerned about this when using ILOG JViews?
This is an important question, especially for our independent software vendor (ISV) customers. We assure you that ILOG JViews has passed the strict licensing guidelines of the world's largest ISVs and can likely pass your requirements too.

If you still have concerns, please contact an ILOG sales representative to get ILOG's open source code usage policy, and to ask other related questions.

2) How is ILOG JViews Charts packaged with JViews Gantt? Are there any usage limitations?
The complete JViews Charts product is included with any purchase of JViews Gantt. Companies looking for a scheduling display product receive a full range of chart types, including treemap views, when purchasing JViews Gantt.

3) I want to build a Web-based scheduling application so that many users can access data at the same time. What facilities do you offer to support this?
JViews products focus on data display rather than data integrity and data synchronization issues. When a user modifies an element of the schedule display, JViews Gantt will update the Gantt data model. The data model, in turn, will be synchronized with the backend data store. JViews application developers have complete freedom to design how this is accomplished. Some possible choices are:

• When one user edits a display, other users’ displays are frozen.
• When a JViews data model tries to update the back-end data store, a collision is detected and the update is rejected. In this case, the user with the rejected action should be notified.
• The moment an interaction is initiated by a user, a “lock” message is sent to the back end data store.

4) How do the Views Gantt C++ and Gantt for .NET products compare with the JViews Gantt Java product?
These products contain different feature sets. They were not made by translating the code base. Views Gantt C++ is part of the ILOG Views product line and was the first ILOG Gantt product. JViews Gantt was re-architected along the lines of the Swing model view architecture and adds a wide range of features for rapid development and new types of data views.

ILOG Gantt for .NET was also re-architected for the .NET platform, and includes an add-on for project management applications. Feature by feature comparisons of the three Gantt products are not meaningful. They do not give enough insight because most developers do not have the luxury of choosing their development platform to use. ILOG has a long history of developing Gantt display components. Each variation of ILOG Gantt components offers lessons that help us continually improve the product.