Jet-engine maker Pratt & Whitney was an early adopter of portal technology. In three years, the company has built more than 100 applications supporting 4,000 employees, suppliers and customers. Here\u2019s a sample of Pratt\u2019s portal capabilities:Parts repair tracking. Customers can view data about the status of jet-engine repairs online. Site has reduced e-mail traffic about repair questions by 1 billion messages a year.Time and attendance. Employees can fill out time sheets online from anywhere. Online warranty claims. Allows customers to file claims and check their status online.Supplier portal. Access to long-range purchasing forecasts and delivery schedules for 450 parts suppliers.Wireless diagnostics. Application under development would allow technicians to have remote access to engine performance data?eventually while engine is in flight?to diagnose engine malfunctions and make repairs more quickly.