Which is better?

We think of software as something we use, like clothes. But software is an ecosystem. We interact with software through other people and through tools. The tool you use for online employee management will be different from the one you use for desktop staff management. The advantage of online staff management is that everyone with whom you work, and everyone who participates, is using the same program. (The alternative is desktop software, where everyone uses a different program.)
Online employee management system tools also tend to have better user interfaces than desktop software. Fewer buttons, fewer menu items. The user interface is tailored to the particular tasks of the project. Your choice of online staff management tool will depend on which tasks you plan to do with it. To manage your budget through an on-line tool, you will need a tool with budgeting capabilities. To manage your company’s stock through an on-line tool, you will need a tool that supports stock transactions. Your choice of on-line staff management tool will also depend on which tools are already available to you. Some on-line tools are designed to work with particular desktop software. Others are designed to work with a particular Internet browser. The advantage of online employee management tools is that everyone uses the same tool, and that tool is designed with the particular tasks of the project in mind.