Describe the different types of development objects in ABAP and their purposes.

In ABAP (Advanced Business Application Programming), there are various types of development objects that serve specific purposes in building enterprise applications within the SAP environment. These development objects help developers define, manipulate, and manage data, business logic, and user interfaces. Let's explore the different types of development objects in ABAP and their purposes:

1. Programs:
Programs in ABAP are the central building blocks of application development. They contain executable code that defines the business logic and processing steps. ABAP programs can be categorized into two main types: executable programs (report programs) and non-executable programs (include programs). Executable programs are used for defining standalone business processes, whereas non-executable programs are used to store reusable code snippets that can be included in other programs.
2. Function Modules:
Function modules are self-contained units of code that perform specific tasks or calculations. They encapsulate a set of related functionalities and can be called from other ABAP programs. Function modules are reusable and can be shared across multiple programs, promoting modular and efficient programming practices. They are commonly used for performing data validations, calculations, and database operations.
3. Tables:
Tables in ABAP are used to store structured data in the database. They define the structure and attributes of the data, such as fields, data types, and relationships. ABAP tables are organized into transparent tables (directly accessible in the database), pooled tables (shared across multiple applications), and cluster tables (optimized for storing large volumes of data). Tables are crucial for data storage, retrieval, and manipulation within ABAP applications.
4. Structures:
Structures in ABAP allow developers to define custom data types by grouping related fields together. They represent a collection of fields with their data types and lengths. Structures can be used as standalone data types or as components of other development objects like tables or internal tables. They provide a way to organize and access data in a structured manner.
5. Views:
Views in ABAP are logical representations of data extracted from one or more database tables. They allow developers to define custom data subsets, combining data from different tables, and provide a simplified view for data access. Views can be used to enhance data retrieval efficiency and simplify complex joins or aggregations.
6. Classes:
Classes in ABAP follow object-oriented programming (OOP) principles and enable developers to define reusable code structures. ABAP classes encapsulate both data and methods, allowing for data abstraction and modular code organization. They facilitate better code readability, maintainability, and reusability through concepts such as inheritance, polymorphism, and encapsulation.
7. Interfaces:
Interfaces in ABAP define a set of methods that must be implemented by a class or a program. They provide a contract or a blueprint for ensuring consistent behavior across different implementations. Interfaces allow for abstraction and loose coupling, enabling multiple objects to share a common set of methods without being tightly coupled to each other.
8. Programs for User Interfaces:
ABAP offers various tools for creating user interfaces, such as screens (Dynpros), Web Dynpro, and Floorplan Manager. These tools enable developers to design interactive screens, forms, and web-based interfaces to interact with users and capture input. They provide features for input validation, data display, navigation, and interaction with back-end logic.
9. Data Dictionary Objects:
Data Dictionary objects include domains, data elements, and search helps. Domains define the technical attributes of a field, such as data type, length, and values. Data elements provide semantic information about a field and allow for field documentation and value range checks. Search helps assist users in finding valid input values for a field.

By utilizing these various development objects, ABAP developers can create robust and scalable applications that meet specific business requirements within the SAP environment. Each development object plays a