Simplified Spec Nigel Davis 20201204 Specs NE TAPI

Simplified Spec Nigel Davis 20201204

Specs • “NE” • TAPI Device (CD) • Identifies high level equipment collection specs • Control • • Control. Construct, Exposure. Context, VMF Identifies management-control and comms capabilities • Physical • Equipment (individual and assembly) • Identifies emergent capability • Transport • FD • Forwarding rules • • Effect of the internal forwarding construction May be decompose in many levels to explain complex properties May relate to realization options Covers connectivity-service spec • FC • LTP • • Effect of the termination stack Defines adaptation, termination and internal connectivity opportunities • Casc • General • PC, CD • Scheme specs • Considering network schemes • General spec structure • One pattern for all specs • Etc. Key Limited or no work in Core (may have description but no model) Work in the Core but not in TAPI Work in Core and TAPI

Potential Focus • Device (Equipment assembly) and Equipment • Functions emergent from an assembly • The anchor for the LTP, FD and FC specs (and in TAPI for equivalent specs) • (legal assemblies for planning) • Look at use of occurrence in spec layout • LTP • Properties and derivation • • How to identify that a solution has a diminished form of a standard property and hence constrained usage of a general model for implementations with different ranges of configurability (including none). Consider how this plays into augment and client behaviour • Adapter rules… • • Enables arrangement of potential LTPs to be defined and hence potential TPs in TAPI This may improve • TAPI SIP • Computation of potential connectivity-services in TAPI • Internal connection opportunities (mapping-mode/termination-mode) • Multi-port LTP (as per Thursday discussion) • Look at use of occurrence in spec layout • FC spec • • Lightweight spec equivalent to SD 1 -16 SNCTypes May allow for recursive definition Probably not intertwine LTP specs at this stage Look at use of occurrence in spec layout • FD spec • • Focus on current TAPI capability and develop More example usage Examine TAPI for improved indirection FD to Spec (currently emphasizes Spec per FD instance) Should identify supported FC spec Look at use of occurrence in spec layout

Sketch Device (CD) Equipment FD LTP FC