Network

 You are a project manager in a construction company. One of your tasks includes "building the roof," for which some standardized schedule network diagram templates are available. These templates help in the creation of project network diagrams and are examples of:

 
 
  Choice 1 Conditional diagramming method
 
  Choice 2 PERT
 
  Choice 3 System dynamics
 
  Choice 4 Fragment network/ subnetwork

 

Choice 4.

 

Regards.

 

 Curious to know why 4?

pieces of network are called subnetworks - and building roof network is a piece

 i knew subnetwork meaning but could not connect with roof and also with question having template word in it....got to sleep i guess :)

I think so