Explanation:
Luggage: Custom activity table
An activity can be thought of as any action for which an entry can be made on a calendar. An activity has time dimensions (start time, stop time, due date, and duration) that help determine when the action occurred or will occur. Activities also contain data that helps determine what action the activity represents, for example, subject and description.
Passenger: Customer table
The account and contact tables in Microsoft Dataverse are essential for identifying and managing customers, selling products and services, and providing superior service to the customers. A customer address table is used to store address and shipping information for a customer.
Scenario: The company has a custom app for managing and tracking passenger luggage. The app uses Microsoft Dataverse.
Agents need to view which pieces of luggage match to each passenger, and then need to add the total on the passenger record.

Solution Packager is a tool that can unpack a compressed solution file into multiple XML files and other files, so they can be easily managed by a source control system.
Unmanaged solution: An open solution with no restrictions on what can be added, removed, or modified. This is recommended during development of a solution.
C: Managed solution
A completed solution ready to be imported into an organization. Once imported, components can't be added or removed, although they can optionally allow further customization. This is recommended when development of the solution is complete.
Reference:
https://docs.microsoft.com/en-us/power-platform/alm/solution-packager-tool

Scenario:
Customers can select a meal when they make a reservation and can save the meal choices as a customer preference.
The company offers two types of meals: standard and vegetarian. Meal types can be temporarily unavailable. The airline is considering offering other meal types, such as gluten-free and low-sodium options.
In PowerApps Option set is one of the field types you can use in your Entity. The information type that Option Set stores is a list of text values. And here comes the Option Set advantage - once you define its text values you can centrally managed it.
Example:

Reference:
https://michalguzowski.pl/how-to-work-with-option-set-in-powerapps/

A: Customers should be able to adopt business applications from Microsoft and expect they speak the same language and seamlessly work together. Dual Write allows our customers to not think about these apps as different systems to write to independently; rather, the underlying infrastructure makes it seamless for these apps to write simultaneously.
D: Use Custom APIs to create your own APIs in Dataverse. With a Custom API you can consolidate a group of operations into an API that you and other developers can call in their code. The Common Data Service (current environment) connector enables calling Custom APIs actions in Power Automate.
E: Common Data Service provides access to the environment database on the Microsoft Common Data Service. It is available for Logic Apps, Power Automate, and Power Apps.
Reference:
https://docs.microsoft.com/en-us/business-applications-release-notes/april19/cdm-data-integration/dual-writelink- common-data-service-apps
https://docs.microsoft.com/en-us/connectors/commondataservice/
https://docs.microsoft.com/en-us/powerapps/developer/data-platform/custom-api

Explanation:
Box 1: Omnichannel for Customer Service dashboard
Scenario: Workers must be able to communicate in near real-time with worker support agents.
The company has a team or worker support agents that respond to inquiries from current and prospective workers. Some of the worker support agents are multilingual.
If you choose to expand your customer service offering to provide chat and channels, the Customer Service workspace seamlessly adjusts to support managing conversations as well.
Note: As an agent with the Customer Service Representative security role, when you open Customer Service workspace, you start on the Customer Service Agent Dashboard unless your administrator has changed the default view. This dashboard shows you your active cases, cases you can work in queues you are assigned to, and your open activities. You can open existing cases and activities or begin working new cases from the queues you are assigned to and create activities.
Box 2: Dynamics 365 Customer Service
Scenario: First Up uses an on-premises system to manage current and historical patient data including medications and medical visits.
Reference:
https://docs.microsoft.com/en-us/dynamics365/customer-service/csw-overview
Topic 2, Relecloud
To start the case study
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Background
Relecloud provides regional air service in North Americ
a. The company uses a variety of systems, apps, and services to manage the business. You are hired to design a new solution to manage passenger information, reservations, and maintenance.
Current environment
The company uses Microsoft Office 365.
The company has a custom app for managing and tracking passenger luggage. The app uses Microsoft Dataverse.
For flights longer than four hours, passengers receive a meal. Customers can select a meal when they make a reservation and can save the meal choices as a customer preference.
The company offers two types of meals: standard and vegetarian. Meal types can be temporarily unavailable. The airline is considering offering other meal types, such as gluten-free and low-sodium options.
The company uses paper-based reservation checklists to help ensure that all the steps for a reservation are complete.
The company uses vendors to service aircraft.
Environment
Ensure that employees can sign in to all Microsoft apps by using one set of credentials per employee.
Minimize the use of third-party products and custom development.
Reduce customer support call volumes by having the system automatically resolve common issues.
The security rule for agents must contain the privileges in the default Customer Service Representative security role.
Log issues as cases. The case form must show variable sections based on the case type. Include a custom entity named Seats and grant agents access to the entity.
Application use layout should be role specific.
Agents
You must standardize the format used by agents to enter customer phone numbers.
Agents need a solution to replace paper reservation checklists.
Agents need dashboards to show a current count of all reservations on the entity.
Agents need a way to track reservation issues.
Agents need a visual indicator in the interface to determine the reservation step to provide a seamless customer experience.
Agents need different versions of cancellation policies to send customers. One version must be controllable within the system.
Agents need to view which pieces of luggage match to each passenger, and then need to add the total on the passenger record.
IT
IT staff needs a mobile solution to see IT cases at the top of the menu since this is their primary focus.
IT staff needs a system that is easy to navigate to active cases.
IT specialists want to design Power BI reports. They need to understand the underlying table relationships of the system.
IT specialists need a solution that is visual rather than text-based so they can quickly complete their tasks.
Management
Management requires paginated reports for stakeholders.
Management wants to provide frequent flyers with better service when the flyers call.
Managers need to see all customer dashboards at the top of their menu on their mobile device.
Maintenance
Maintenance supervisors must not have access to Dynamics 365 Customer Service. The supervisors must be able to communicate with the contracts team about contracts.
Aircraft maintenance vendors must have only view and upload privileges to their invoices and receipts.
Contracts with maintenance companies must be stored in Dynamics 365 Customer Service.