It's been another busy year in the enterprise software industry, marked by high-profile acquisitions and IPOs, the rise of in-memory computing, a red-hot HCM (human capital management) market, and even the apparent settling of a long-running Silicon Valley feud. Here's a look at some of the highlights. In-memory databases going mainstream: SAP has been hyping its HANA in-memory computing platform for a few years now, but the clamor around in-memory got even louder in 2013.