ENTERPRISE SOFTWARE is an unlikely source of hubbub. Bringing up CRM or ERP in conversation has usually been a reliable way to be left alone. But not these days, especially if you are chatting to a tech investor. Mention the acronyms—for customer-relationship management, which automates front-office tasks like dealing with clients, and enterprise resource planning, which does the same for back-office processes such as managing a firm’s finances or supply chains—and you will set pulses racing.