Software as a service (SAAS) services featuring software for contractors, subcontractors, and sub-subcontractors in labor-intense businesses to calculate and estimate labor and materials for the creation of quotations, estimates, proposals, contracts, invoices, change orders, work orders, and business reports; Software as a service (SAAS) services, namely, hosting software for use by others for use by contractors, subcontractors, and sub-subcontractors in labor-intense businesses to calculate and estimate labor and materials for the creation of quotations, estimates, proposals, contracts, invoices, change orders, work orders, and business reports