I think I agree with @cheddar here. The type of bolus should be independent of the bolus mechanism. We should distinguish between manual injection and pump, but that should happen in another field.

If the intention is to differentiate the length of time it takes to deliver a normal bolus, each pump delivers at a different rate. So for example (and this is not intended to be accurate!), an insulin pen or syringe takes 1 second, an Animas takes 10 seconds, a Minimed takes 20 seconds, a Snap takes 30 seconds, and a Tandem takes 40 seconds. (Again, not actual values, just to illustrate that there is no consequential distinction between a syringe bolus and an insulin pump normal bolus.)