Our system is what used to be called 'polyfragmented' meaning that some dissociated experiences were broken up into tiny little manageable chunks. What that looks like in us some abusive experiences were managed by a cluster of alter-states. Each one holds their own tiny little bit of the experience. One might hold pain, another might hold anger, another might hold fear, another might hold a sense of responsibility or whatever.
When a dissociated memory surfaces for us it is often remembered in tiny little bits as each alter (we call these ones 'memory holders') comes forward with their tiny piece of the puzzle. With these kind of alters in us, they often only exist to hold that one aspect of that one traumatic experience.
So, As you can imagine. with this type of system of dissociation there can be many, many, many, MANY fragments!
But I don't think it is any more difficult to manage than any other type of system. We still have our 'daily alters' that are well developed and very functional. We still have trauma based alters that dealt with similar types of trauma over time and are quite developed, too. And then there are the fragmented ones that don't really serve any function in the system other than to hold one aspect of one individual traumatic experience. In us, once they have brought that forth and the information is processed by us they are pretty much 'done' and we don't ever see them again. So in many ways they are 'easy'.