Microsoft Office InfoPath 2007

InfoPath is based on Extensible Markup Language (XML). When you design a form template, InfoPath creates an .xsn file, which is a cabinet (.cab) file that contains the files necessary for the form to function, such as XML Schema Definition(XSD) and XSL Transformation (XSLT) files. When a user fills out a form in InfoPath, the data in that form is saved or submitted as industry-standard XML. However, you don't have to know anything about XML to design a form template or fill out a form. The point is that XML can make it easier for your organization to repurpose the data that it collects by using forms. For example, a single InfoPath form template for trip reports can be used to provide XML data to a customer relationship management system, a petty cash system, and a travel planning system.

Description:
InfoPath can be used to collect business data from the people whom you work with, including your colleagues, partners, suppliers, and customers. For example, you can use InfoPath to create a form template for expense reports for the people in your organization.
InfoPath form templates can be straightforward, simple form templates that are used by several people in a small workgroup. For example, a 10-person sales team can use an InfoPath form to informally collect and share information about sales calls. The data in those forms can be merged into a single summary report that is sent to management each month.
Alternatively, organizations can design highly sophisticated form templates that are connected to existing corporate databases or integrated into existing business systems. For example, the developers in your information technology department can design an InfoPath form template to manage the expense reporting process for your organization. The form template can include views and business logic features that enable different categories of users to submit the expense report, review it, approve it, and reimburse the submitter.

Usage
InfoPath can be integrated with
a) Microsoft Office Outlook
b) Share Point Server
c) Biztalk Server
d) WebServices
e) K2.Net etc.,