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+/***********************************************************************************
+
+Agile_Production_Platform_Customer_Interactions
+
+created collaboratively in Teams by K.Giammarco, M. Collins and E.Griffor 08-20-2020
+modified collaboratively in Teams by K.Giammarco and J.Beaver 09-17-2020
+
+
+The "Agile Production Platform" (APP) represents the linkage platform being designed 
+to enable agile production / building of alternative supply chains.
+
+The purpose of this model is to facilitate agreement on a baseline typical use case 
+for a Customer placing an order (for face shields, in this case) using the APP.  
+
+The model currently produces one (1) event trace at scope 1.  Reviewers of this model
+are invited to provide feedback for better-named events, other events that may occur
+normally or as a disruption to the sequence, missing or incorrect interactions, and 
+the partitioning of the high level APP functions for architectural cohesion. Lower-
+level (implementation) activities have been deliberately omitted for now in order to 
+reach consensus on intended use at the highest level of abstraction.  
+
+Also invited are direct edits to the model that suggest alternatives for Customer 
+behaviors (including misuse and possible nafarious actions) and APP behaviors that
+would correspond to the new Customer behaviors.
+
+Since there is no concurrent editing capability at present, feedback may be delivered 
+to kmgiamma@nps.edu, mdcolli@evoforge.org and edward.griffor@nist.gov as:
+- comments in the body of an email
+- updated MP model with editor intials appended
+	- may use SAY statements to attach comments directly to events in the event trace
+      as demonstrated herein
+
+
+*************************************************************************************
+
+The narrative for this baseline use case is as follows:
+
+Precondition: A Customer has an urgent need for 5,000 medical face shields.
+
+
+1.	Customer logs into the APP linkage platform.
+ 
+2.	APP authenticates valid customer credentials and prompts the Customer for the need.
+ 
+3.  Customer inputs a need for 5,000 units of a medical face shield with desired
+    attributes.
+ 
+4.  APP identifies the individual components of the needed item.
+ 
+5.  APP determines which Sector Resources to search for equivalent components (prepares
+    component search parameters).
+ 
+6.  APP searches Sector Resources for available component matches and their attributes
+    (e.g., availability, timeliness, cost, reliability, quality, quantity).
+ 
+7.  APP assembles combinations of available components having intersecting
+    attributes (find component matches).
+ 
+8.  The APP constructs a list of valid supply chain elements.
+ 
+8a. If the supply chain for the order is complete, the APP displays the order options to the
+    Customer along with soonest delivery time, total cost, and component attributes for
+    each participant in the chain (e.g., participant reputation, material specifications,
+    product dimensions, suitability for certification).
+    
+8b. Otherwise if one or more components is unavailable, the APP reprocesses the order with
+    a new search for equivalent alternatives to the missing component(s) (back to step 5).
+ 
+9a. If the supply chain is complete, the Customer receives the order options from the APP
+    and filters, sorts, and inspects the presented solutions, selects a solution, and places
+    the order. 
+    
+    9a-1.  The order is delivered to the Customer and meets their expectations.(Favorable
+    Outcome)
+    9a-2.  The order is delivered to the Customer and does not meet their expectations.
+    (Unfavorable Outcome)
+    9a-3.  The order is not delivered to the Customer (Unfavorable Outcome).
+   
+   
+9b. If no alternative supply chain can be found, the Customer is notified by the APP that the
+    order cannot be completed at this time. (Unfavorable Outcome)
+ 
+
+Assumptions/Abstractions:
+
+The "Data for supply chain" event that is included in the APP and the Data Services/
+Resources root represents asynchronous and continuous data for support to the 
+alternative supply chain construction.  The individual interactions involved here
+are another level of refinement reserved for a separate MP model that can be elaborated
+separately from this model which focuses on the Customer-APP interactions.
+
+Known ways to get to an unfavorable outcome:
+- Customer asks for a disproportionately large amount of product and the system is strained
+for other users
+- Allow for aggregation
+
+
+
+
+Questions:
+- Does the APP prioritize orders?
+- Can a customer get orders with "some assembly required" or does it come assembled from
+some service provider? 
+
+Postcondition:  The Customer receives 5,000 face shields (not shown in the model yet).
+
+*************************************************************************************/
+
+
+SCHEMA Agile_Production_Platform_Customer_Interactions
+
+ROOT Customer: 		Log_into_APP
+					Input_a_need_for_5000_medical_face_shields
+                        
+					(	Receive_potential_solutions
+						Filter_sort_inspect_presented_solutions
+						Select_solution
+						Place_order
+					
+                      (	Receive_order
+                        ( Order_meets_expectations 	|
+                          
+                            Order_does_not_meet_expectations )	|
+                        
+                        Does_not_receive_order )	|
+                        
+                        	Unable_to_place_order );
+
+
+ROOT APP: 	{ 	Handle_User_Interactions, 
+    			Manage_Supply_Chain_Options};
+
+Handle_User_Interactions: 	Authenticate_Customer_credentials
+    						Prompt_Customer_for_need
+							Send_customer_order
+							(	Alternative_supply_chain_found
+    							Display_potential_solutions_with_attributes
+    							Place_orders_on_behalf_of_Customer	|
+                                
+                                	Alternative_supply_chain_NOT_found
+                                	Notify_customer_order_cannot_be_completed );
+
+Manage_Supply_Chain_Options:	{ 	Identify_individual_components_of_needed_item
+    								Prepare_component_search_parameters
+    								Find_component_matches
+    								
+    								Construct_list_of_valid_supply_chains
+    								( Complete_supply_chain_available Provide_list_to_user	|
+                                        
+                                        Complete_supply_chain_unavailable ),
+    
+    								Data_for_supply_chain
+    							};
+
+
+COORDINATE $a: Log_into_APP							FROM Customer,
+           $b: Authenticate_Customer_credentials	FROM APP
+    DO ADD $a PRECEDES $b ; OD;
+
+COORDINATE $a: Prompt_Customer_for_need						FROM APP,
+           $b: Input_a_need_for_5000_medical_face_shields	FROM Customer
+    DO ADD $a PRECEDES $b ; OD;
+
+COORDINATE $a: Input_a_need_for_5000_medical_face_shields		FROM Customer,
+           $b: Send_customer_order								FROM APP
+    DO ADD $a PRECEDES $b ; OD;
+
+COORDINATE $a: Send_customer_order								FROM APP,
+           $b: Identify_individual_components_of_needed_item	FROM APP
+    DO ADD $a PRECEDES $b ; OD;
+
+COORDINATE $a: Provide_list_to_user							FROM APP,
+           $b: Display_potential_solutions_with_attributes	FROM APP
+    DO ADD $a PRECEDES $b ; OD;
+
+COORDINATE $a: Display_potential_solutions_with_attributes		FROM APP,
+           $b: Receive_potential_solutions						FROM Customer
+    DO ADD $a PRECEDES $b ; OD;
+
+COORDINATE $a: Place_order							FROM Customer,
+           $b: Place_orders_on_behalf_of_Customer	FROM APP
+    DO ADD $a PRECEDES $b ; OD;
+
+COORDINATE $a: Notify_customer_order_cannot_be_completed	FROM APP,
+           $b: Unable_to_place_order						FROM Customer
+    DO ADD $a PRECEDES $b ; OD;
+
+
+ROOT Data_Services_Resources: 	Data_for_supply_chain;
+
+/*  Abstracted out for now.  Will elaborate in a separate MP model.
+								{ 	[ Suppliers ],
+									[ Shippers ],
+									[ Manufacturers ],
+									[ Distributers ],
+    								[ Design_Engineering ],
+									[ Shipping_Distribution ],
+									[ Customer_Services ],
+									[ Market_Services ],
+    								[ Purchase_Order_Contract_Payment ] 	
+								};
+
+*/
+
+Data_Services_Resources, APP SHARE ALL Data_for_supply_chain;
+
+
+
+/*------------------------ TABLES, CHARTS & DIAGRAMS --------------------------*/
+
+COORDINATE $a: $$EVENT
+DO
+/* Customer durations, placeholder values only */
+	IF $a IS Log_into_APP 									THEN SET $a.duration AT LEAST 1; FI;
+  	IF $a IS Input_a_need_for_5000_medical_face_shields 	THEN SET $a.duration AT LEAST 5; FI;
+  	IF $a IS Receive_potential_solutions 					THEN SET $a.duration AT LEAST 1; FI;
+  	IF $a IS Filter_sort_inspect_presented_solutions 		THEN SET $a.duration AT LEAST 20; FI;
+  	IF $a IS Select_solution 								THEN SET $a.duration AT LEAST 1; FI;
+  	IF $a IS Place_order 									THEN SET $a.duration AT LEAST 3; FI;
+/* APP durations, placeholder values only */
+	IF $a IS Authenticate_Customer_credentials 				THEN SET $a.duration AT LEAST 1; FI;
+  	IF $a IS Prompt_Customer_for_need 						THEN SET $a.duration AT LEAST 1; FI;
+  	IF $a IS Send_customer_order 							THEN SET $a.duration AT LEAST 1; FI;
+  	IF $a IS Identify_individual_components_of_needed_item 	THEN SET $a.duration AT LEAST 5; FI;
+  	IF $a IS Prepare_component_search_parameters 			THEN SET $a.duration AT LEAST 5; FI;
+	IF $a IS Find_component_matches 						THEN SET $a.duration AT LEAST 60; FI;
+  	IF $a IS Construct_list_of_valid_supply_chains 			THEN SET $a.duration AT LEAST 10; FI;
+  	IF $a IS Provide_list_to_user 							THEN SET $a.duration AT LEAST 1; FI;
+  	IF $a IS Display_potential_solutions_with_attributes 	THEN SET $a.duration AT LEAST 1; FI;
+  	IF $a IS Place_orders_on_behalf_of_Customer 			THEN SET $a.duration AT LEAST 1; FI;
+OD;
+
+
+/* Durations Table */
+
+TABLE Durations_Table 	{ 
+							TABS 	string Event_name, 
+									number Start_time, 
+									number Duration_time;
+						};
+
+
+/* Gantt Chart */
+
+BAR CHART 	Gantt_Chart { TITLE("Gantt Chart");
+	FROM 	Durations_Table;
+	X_AXIS Event_name;
+	ROTATE; /* to place the X_AXIS vertical */
+};
+
+COORDINATE $e: $$EVENT
+	DO 	/* add this event to the Table */ 
+		Durations_Table 		<|
+			Event_name: 	SAY($e),
+			Start_time: 	$e.start.smallest,
+			Duration_time:  $e.duration.largest;
+	OD;
+
+
+
+/* Display on Output */
+
+/*SHOW Durations_Table;
+SHOW Gantt_Chart;
+SHOW ACTIVITY DIAGRAM APP;*/
+
+/*----------------------------------- QUESTIONS ------------------------------------*/
+
+COORDINATE $x: Customer 
+			DO  ADD SAY("What additional interactions for the Customer may be needed " 
+                		"while the Customer is waiting for the order?")
+  					PRECEDES $x;
+			OD;
+
+
+/*----------------------------------- COMMENTS -------------------------------------*/
+
+SAY("Partitioned the APP into user-facing " "and back end-facing functionality.");
+
+COORDINATE $x: Data_for_supply_chain 
+			DO  ADD SAY("Represents asynchronous and continuous data " 
+                		"for support to the alternative supply chain construction.")
+  					PRECEDES $x;
+			OD;
+
+IF #Order_meets_expectations > 0 THEN
+SAY("Favorable Outcome");
+FI;
+
+IF #Order_does_not_meet_expectations > 0 THEN
+SAY("Unfavorable Outcome");
+FI;
+
+IF #Does_not_receive_order > 0 THEN
+SAY("Unfavorable Outcome");
+FI;
+
+IF #Unable_to_place_order > 0 THEN
+SAY("Unfavorable Outcome");
+FI;