Context-aware configurations are related to a content resource, allows different configs for different content resources. Parameters within nested contexts allow hierarchical based inheritance and global fallback values when required. Leveraging the Context-Aware Configuration Java API, one can retrieve the appropriate configuration for each content resource without concerning where it is stored or how the inheritance works.

AEM Core Components are a standard set components to be used with AEM. Built with Adobe's best practices and standards, Core Components provide a baseline set of functionality for any Sites implementation. However, it's often necessary to customize the functionality of core components to address project-specific requirements. The business logic for the core components is implemented in Sling Models, which can be customized using the delegation pattern.

AEM offers three deployment models: On-Premise, Managed Service & AEM as a Cloud Service. Each designed to meet different organizational needs, technical requirements, and strategic objectives. Understanding these options is crucial for making an informed decision that aligns with your business goals, technical capabilities, and budget constraints.

In AEM development, it's common to encounter scenarios where the same set of dialog fields such as alternative text for an image, or text and background color options are needed across multiple components. Traditionally, developers might copy-paste these dialog configurations into each component, but this leads to code duplication and maintenance headaches.

Enabling Show/Hide functionality for AEM dialog fields improves user experience by allowing content authors to focus on relevant fields, thereby making the authoring process more efficient and less error-prone.

Design Dialog allows developers and template authors to configure component behavior at the template level. It includes setting default values and controlling the visibility of fields in the component dialog. Acting as a bridge between Template Editor and Component Dialog, it provides a way to customize component behavior dynamically.

To troubleshoot issues, we may need to impersonate users in the author environment. With the Impersonate functionality, a user can work on behalf of another user.

Sling Model Injectors allow developers to retrieve and inject data directly into Sling models. However, sometimes, standard injectors aren't enough when you need to pull custom or complex data, such as tag properties or content fragments. In such cases, custom Sling Model injectors can be developed to meet specific data requirements.

Creating dynamic and interactive components can significantly enhance the authoring experience. One effective enhancement is dynamically populating the options of a select field within a component dialog. This is especially useful when the options need to be fetched from an external source or depend on other selections made by the author.

OSGi Configuration allow us to configure run-mode specific properties. All the out-of-the-box OSGi configurations are available at /system/console/configMgr while custom configurations can be created as per business requirements. These configurations are typically managed within the AEM project's ui.config module in the code repository.

Troubleshooting and debugging are crucial aspects of working with AEM, allowing developers to identify, analyze, and fix issues in their code. Since AEM projects often involve extensive custom code for Models, Services, Servlets, and Schedulers, debugging allows real-time inspection and provides valuable insights into the root cause, enabling effective fixes. To debug an AEM application, you can use Java Remote Debugging.

In AEM development, prioritizing code quality is essential. Even during deployment via Cloud Manager, it's crucial to meet specific metrics for security, reliability, maintainability, and code coverage. SonarQube enables continuous code inspections, identifying issues early in the development lifecycle that could affect these metrics. Though integration, developers can ensure the maintenance of clean, efficient, and secure code throughout the AEM development process.

Page properties in AEM serve as metadata that provide essential information about a webpage. While AEM provides a standard set of properties to meet basic web project needs, organizations often enhance them with extra functionalities or custom data fields to effectively address more complex or unique requirements in content management.

In AEM backend Java development, Sling Models are utilized to retrieve dialog values using annotations. However, writing boilerplate code such as getter methods for passing these values to HTL can be tedious. To simplify this process, Project Lombok can be integrated, automatically generating the necessary boilerplate code with annotations like @Getter. This streamlines development tasks by eliminating the need for manual getter method creation.

Query Builder offers an easy way of querying the content repository of AEM. The API is built using the JCR API. AEM includes a Query Debugger tool that allows you to execute search queries on the JCR (Java Content Repository). Utilize this tool to perform a dry run of the AEM queries, optimize them, and then implement them into your code.

In accordance with specific project requirements, there might be a need to incorporate Multifield within the component dialog. Let's explore how to retrieve Multifield data and effectively utilize it in HTL.

There are two potential scenarios for integrating Adaptive forms into AEM Sites: one for new projects and another for existing projects. Adobe has developed the aem-core-forms-components which can be used to incorporate forms standard components into AEM Sites.

Granite UI provides a large range of the basic components needed to create component dialog on the authoring environment. These components are constructed using Coral UI-based elements.

In AEM components, it's often necessary to establish default values. This ensures that when components are dragged onto the page, they display predefined initial values. This functionality is achievable through the utilization of cq:template and cq:templatePath.