I am new to Perl scripting...

Anyone please help me regarding this issue...

I have a perl script ( such as a startup script or the initial script ) ... i have 5 others scripts ( which are like different scenarios and run after the startup script ) ..... i need not run all the 5 scripts always ... i run the startup script and i need to call the script based on any scenario ( among those 5 scenarios )... how can i do this????