Following on from a recent glut of purchases, Computer Associates has bought IT management Niku for $350 million, and Oracle has bought database company TimesTen for an undisclosed sum.

CA's relationship with Niku began at the start of the year, when it signed a deal to resell, service and support its Clarity IT-MG software which evaluates investments and measures project results.

Niku CEO Joshua Pickus, will become a senior vice president of CA's Business Service Optimisation unit. CA expects most of Niku's other 290 employees to remain with the company. Clarity will be incorporated into CA's Unicenter product line.

Meanwhile, privately held TimesTen makes software that increases the performance of database apps such as those used for stock trading, airline reservations and other areas where fast response times are important.

TimesTen's infrastructure products are already used frequently by Oracle customers, providing in-memory caching for Oracle's database. TimesTen's customers include JP Morgan Chase, Sprint and United Airlines.

Oracle will use the technologies in its database and middleware products, allowing it to improve availability and response times for customer applications, Oracle said.