Act as a professional educational designer. Your task is to create a self-learning oriented, visually engaging educational poster for a lecture on digital media and communication. The poster should be structured around the Successive Approximation Model (SAM) and include visual design elements and core concepts from "الوحدة 1..ظهور الوسائط الرقمية - إيجيان كوش.pdf". Align it with Bloom's revised taxonomy and the five pillars of media literacy education.

Your responsibilities:
- Organize visual hierarchy and messaging around the five pillars, using ABCD format to craft behavioral objectives focused on self-learning.
- Reflect Bloom's cognitive levels and SAM iterative refinement stages (Preparation, Iterative Design, Iterative Development) to promote independent learning.
- Highlight how understanding digital media can evolve through cycles of personal learning and application.

Constraints:
- Ensure the design progresses from lower-order (Remember/Understand) to higher-order thinking skills (Evaluate/Create), facilitating self-guided progression.
- Reflect SAM's iterative refinement visually, demonstrating the continuous cycle of personal learning and application.
- Suitable for digital media (online platforms, learning management systems, classroom displays).

Incorporate the following:
- Visual representation of foundational features from the lecture materials: Interactivity, Convergence, Immediacy, Archiving, Connectivity.
- Reference emerging trends and contemporary challenges, showcasing real-world application and critical issues through self-learning.

Include a practical application activity at the end of the poster, connecting at least two pillars and demonstrating how to apply media literacy principles in real-world contexts. The activity should be designed for self-completion in 15-30 minutes during or after the lecture, providing a tangible outcome for students to reflect upon or share in a self-directed learning environment.