​What is the first step in constructing a first-cut sequence diagram from the elements of the system sequence diagram (SSD)?Question 13Select one:a.​Determine which messages must be sentb.​Create a use case controllerc.​Replace the :System object with all the objects that must collaborated.​Select an input message from the use case

or the student functionality "Update student information", using the Domain Model Class Diagram and the System Sequence diagram:Draw a First-cut Sequence Diagram Draw a Final-cut Sequence DiagramNOTES: See Process Guidelines for how to draw these diagramsIMPORTANT - Please cut and paste an image of your 2 diagrams in the answer Value: 70%Process GuidelinesDraw the First-Cut Sequence DiagramStart with elements from System Sequence Diagram (SSD) and first-cut Design Class Diagram (or Domain Model Class Diagram)A Sequence Diagram uses all elements of an SSD. System object replaced by all internal objects and messagesReplace the :System object with an appropriately named use case controllerFor each input message Determine all internal messages that result from that inputDetermine its objective, what information is neededIdentify the complete set of classes from the domain model affected by the messageWhat class needs it (destination)What class provides it (source)Whether any objects are created as a result of the inputFlesh out the components for each messageIteration, true/false conditions, return values, passed parametersAdd the controller - use case controller acts as intermediary between outside world and internal system Draw the Final-Cut Sequence DiagramAdd a view layer interface class before the controller either as a single GUI class or as Windows classesAdd a data access class for each problem domain class Data access layer should only support database CRUD – (Create, Read, Update, Delete) operations so classes maintain a high level of cohesion and are loosely coupled with the business layer

What is the primary focus of a sequence diagram?a.To detail the database schema of the systemb.To represent the static structure of a systemc.To provide a high-level view of the system's user interfaced.To illustrate the temporal ordering of messages exchanged between objects

This interactive behavior is represented in Unified Modelling Language byQuestion 5Answera.State Machine Diagramb.Sequence diagramc.Collaboration diagramd.both A and B

​Which diagram is directly used to identify methods and write programming code for object-oriented systems?Question 19Select one:a.​Sequence diagramb.​Design class diagramc.​Package diagramd.​State-machine diagram

Sequence Diagrams