Prerequisites to Learn AEM: Building Your Foundation

Introduction

Before diving into Adobe Experience Manager development, you need a solid foundation across multiple domains. AEM isn't a single technology—it's an ecosystem that combines web development, Java programming, build tools, and business acumen. Unlike simpler CMS platforms that might only require HTML and PHP, AEM demands understanding of architecture, workflows, and the strategic purpose behind content delivery. After reading this article, you'll understand exactly what skills you need before starting your AEM journey, where gaps exist in your knowledge, and most importantly, why understanding digital marketing transforms you from a developer who codes features into a strategist who builds experiences. This article is your roadmap—use it to self-assess your readiness and identify what to learn first. Prerequisites: Honest self-evaluation of your current skills and commitment to learning outside your comfort zone.

Part 1: Essential Web Technologies

AEM developers work across the full web stack. You'll use HTML, CSS, and JavaScript daily. If you're shaky in any of these, AEM will be frustrating. Let's break down what you need to know.

HTML: The Content Structure Foundation

What You Need:

• HTML5 semantic markup (<header>, <nav>, <main>, <article>, <section>)

• Form elements and accessibility best practices

• Understanding of meta tags, Open Graph, and SEO meta tags

• Data attributes and ARIA roles for accessibility

• How browsers parse and render HTML

Why It Matters in AEM:
Every AEM component renders HTML. When you create a component, you're writing HTL (HTMLTemplate Language) that outputs HTML. If you don't understand semantic HTML, you'll create inaccessible pages that don't rank well in search engines. Consider this:

<!-- Bad: Non-semantic HTML -->
<div class="header">
    <div class="nav">
        <div class="link"><a href="/about">About</a></div>
    </div>
</div>

<!-- Good: Semantic HTML -->
<header>
    <nav>
        <a href="/about">About</a>
    </nav>
</header>

In AEM, you'll often review component markup, and semantic HTML affects:

• SEO: Search engines understand page structure better

• Accessibility: Screen readers can navigate semantic elements

• Responsive Design: Proper structure helps CSS media queries work correctly

• Performance: Less DOM bloat = faster rendering

What You Should Be Able to Do:

• Write semantic HTML5 without looking at references

• Understand the difference between block, inline, and inline-block elements

• Know when to use <div> vs. semantic elements

• Understand data attributes and ARIA roles

• Build accessible forms with proper labels

Self-Assessment:

• ✅ Can you create a accessible contact form with proper labels and error messages?

• ✅ Do you know the difference between <section>, <article>, and <div>?

• ✅ Can you explain why semantic HTML matters for SEO?

If you answered "no" to any, review the MDN HTML Guide.

CSS: Styling and Responsive Design

What You Need:

• CSS selectors (class, ID, attribute, pseudo-classes)

• Box model (margin, padding, border, content)

• Flexbox and CSS Grid layouts

• Responsive design and media queries

• CSS variables and modern CSS features

• CSS preprocessors (SCSS/SASS) basics

• Performance considerations (animations, repaints, reflows)

Why It Matters in AEM:
AEM components are modular, and each component brings its own CSS. You need to understand:

1. Component Styling Isolation — Prevent component CSS from affecting other components

/* Good: Component-scoped styles */
.product-card {
    display: flex;
}

.product-card__title {
    font-size: 1.5rem;
}

/* Bad: Global styles that break other components */
.title {
    font-size: 1.5rem; /* This affects EVERY element with class="title" */
}

2. Responsive Design — AEM components must work on desktop, tablet, and mobile

/* Mobile-first approach */
.product-card {
    display: block; /* Stack on mobile */
}

@media (min-width: 768px) {
    .product-card {
        display: flex; /* Side-by-side on tablet+ */
    }
}

3. Performance — CSS-heavy animations can slow down pages

/* Good: Uses GPU acceleration */
.card {
    transform: translateY(-10px);
    transition: transform 0.3s ease;
}

/* Bad: Triggers reflows */
.card {
    top: -10px;
    transition: top 0.3s ease;
}

4. Theming — AEM sites often have multiple brands or themes

/* Using CSS variables for theming */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
}

.button {
    background-color: var(--primary-color);
}

/* Override for dark theme */
[data-theme="dark"] {
    --primary-color: #0056b3;
}

What You Should Be Able to Do:

• Create responsive layouts without Bootstrap (understand the fundamentals)

• Debug CSS issues using browser dev tools

• Write performant animations

• Implement CSS variables for theme management

• Understand flexbox and grid deeply enough to build complex layouts

• Work with SCSS/SASS if required by your AEM project

Self-Assessment:

• ✅ Can you build a fully responsive website without CSS frameworks?

• ✅ Do you understand the difference between margin and padding?

• ✅ Can you optimize CSS for performance (minimizing reflows)?

• ✅ Have you worked with CSS preprocessors (SCSS)?

If you need improvement, practice building layouts from scratch without frameworks like Bootstrap.

JavaScript: Interactivity and DOM Manipulation

What You Need:

• ES6+ syntax (arrow functions, destructuring, template literals, classes)

• DOM selection and manipulation

• Event handling and event delegation

• Asynchronous JavaScript (Promises, async/await)

• Fetch API for AJAX requests

• Array and Object methods (map, filter, reduce, spread operator)

• Module systems (import/export)

• Understanding of browser APIs (localStorage, sessionStorage, geolocation)

Why It Matters in AEM:
Modern AEM sites are JavaScript-heavy. Components often need client-side interactivity:

// Example: AEM component with interactivity
class ProductCard {
    constructor(element) {
        this.element = element;
        this.wishlistButton = element.querySelector('.wishlist-btn');
        this.setupEventListeners();
    }

    setupEventListeners() {
        this.wishlistButton.addEventListener('click', (e) => {
            e.preventDefault();
            this.toggleWishlist();
        });
    }

    toggleWishlist() {
        const productId = this.element.dataset.productId;
        const isWishlisted = this.element.classList.toggle('wishlisted');
        
        // Send to backend
        fetch('/api/wishlist', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ productId, isWishlisted })
        }).catch(err => console.error('Wishlist update failed:', err));
    }
}

// Initialize on DOM ready
document.addEventListener('DOMContentLoaded', () => {
    document.querySelectorAll('.product-card').forEach(card => {
        new ProductCard(card);
    });
});

AEM-specific JavaScript patterns:

1. Component Initialization — Each component needs JS when it loads

2. Data Attributes — Passing data from server (HTL) to client (JS)

<!-- HTL (server-side) -->
<div class="product-card" data-product-id="${product.id}" 
     data-price="${product.price}">
    <!-- content -->
</div>

<!-- JavaScript (client-side) -->
const productId = this.element.dataset.productId; // Read from HTML

3. Event Delegation — Dynamically loaded components need event handling

// Delegate event to parent (works for dynamic components)
document.addEventListener('click', (e) => {
    if (e.target.closest('.product-card__delete')) {
        handleDelete(e.target.closest('.product-card'));
    }
});

4. Performance Considerations — AEM pages can have many components

// Bad: Blocks page rendering
const data = fetch('/api/products').then(r => r.json());

// Good: Non-blocking, doesn't delay interactivity
fetch('/api/products')
    .then(r => r.json())
    .then(data => updateUI(data))
    .catch(err => console.error(err));

What You Should Be Able to Do:

• Write modern ES6+ JavaScript without transpilation help

• Debug JavaScript issues using browser dev tools

• Understand event bubbling, capturing, and delegation

• Write async code with Promises and async/await

• Understand module patterns and import/export

• Optimize JavaScript for performance (defer loading, code splitting)

Self-Assessment:

• ✅ Can you write an ES6 class and understand this context?

• ✅ Do you understand Promises and async/await?

• ✅ Can you use fetch API and handle JSON responses?

• ✅ Have you worked with event delegation?

If you're weak here, practice building interactive components without jQuery or heavy frameworks.

Part 2: Java Programming Language

Java is the backbone of AEM. You don't need to be an expert, but you need solid fundamentals. AEM uses Java 8+ features extensively.

Core Java Concepts You Need

1. Object-Oriented Programming (OOP)

AEM is built on OOP principles. You'll work with classes, inheritance, interfaces, and polymorphism daily:

// Example: AEM Sling Model (component business logic)
@Model(adaptables = Resource.class)
public class ProductCard {
    // Fields (properties)
    @ValueMapValue
    private String name;
    
    @ValueMapValue
    private Double price;
    
    // Methods
    public String getFormattedPrice() {
        return String.format("$%.2f", price);
    }
}

2. Annotations

AEM relies heavily on annotations (@Model, @Inject, @ValueMapValue, @Component, etc.). You must understand:

• What annotations do (metadata that frameworks process)

• Common AEM annotations and their purpose

• How to read annotation parameters

// Understanding annotation parameters
@ValueMapValue(name = "productName", defaultValue = "Unknown")
private String product;
// ^ This tells Sling Models: 
//   - Read property named "productName" from the resource
//   - If it doesn't exist, use "Unknown" as default
//   - Store it in the "product" field

3. Exception Handling

AEM code often fails silently without proper exception handling. You need to:

• Understand checked vs. unchecked exceptions

• Write try-catch blocks effectively

• Know when to catch, when to log, when to throw

@PostConstruct
protected void init() {
    try {
        // Parse price as Double
        this.price = Double.parseDouble(priceString);
    } catch (NumberFormatException e) {
        // Log the error, don't crash
        log.warn("Invalid price format: {}", priceString);
        this.price = 0.0;
    }
}

4. Collections Framework

You'll work with Lists, Maps, and Sets constantly:

// Example: Processing multiple products
List<Product> products = resource.getChildren()
    .stream()
    .map(child -> child.adaptTo(Product.class))
    .filter(product -> product != null && product.isAvailable())
    .limit(5)
    .collect(Collectors.toList());

5. Generics

Modern Java uses generics extensively:

// With generics
List<String> names = new ArrayList<>();
names.add("Product");
String name = names.get(0); // Type-safe, no casting needed

// Without generics (avoid)
List names = new ArrayList();
names.add("Product");
String name = (String) names.get(0); // Requires casting, error-prone

6. Streams and Functional Programming

Java 8+ streams are essential:

// Filter, map, collect pattern
List<String> productNames = products.stream()
    .filter(p -> p.getPrice() > 0)
    .map(Product::getName)
    .collect(Collectors.toList());

// Sorted, limited
products.stream()
    .sorted(Comparator.comparingDouble(Product::getPrice).reversed())
    .limit(10)
    .forEach(System.out::println);

7. Dependency Injection

AEM uses OSGi dependency injection. You don't need to understand the framework deeply, but understand the concept:

// Instead of creating objects manually
// AEM injects dependencies automatically

@Model(adaptables = Resource.class)
public class ProductCard {
    @Inject
    private ResourceResolver resolver; // AEM provides this
    
    @Inject
    private Logger log; // AEM provides this
}

Java Concepts NOT Critical for AEM

• Database JDBC connections (AEM uses JCR, not SQL)

• Multithreading (mostly handled by AEM framework)

• Java Networking (rarely needed)

• Swing GUI (not applicable to web apps)

• File I/O (AEM uses repository, not filesystem)

What You Should Be Able to Do:

• Write classes with proper encapsulation (getters/setters)

• Understand inheritance and interfaces

• Use collections (List, Map, Set) effectively

• Write functional code with streams

• Read and understand annotations

• Handle exceptions properly

• Debug Java code in IDE (set breakpoints, inspect variables)

Self-Assessment:

• ✅ Can you write a class with properties, constructors, and methods?

• ✅ Do you understand the difference between a class and interface?

• ✅ Can you use List and Map without looking at documentation?

• ✅ Can you write stream operations (filter, map, collect)?

• ✅ Have you debugged Java code in an IDE?

If Java is completely new to you, spend 2-4 weeks learning fundamentals before starting AEM.

Part 3: Apache Maven - Build Tool Mastery

AEM projects use Maven to manage dependencies, compile code, run tests, and deploy applications. You don't need to be a Maven expert, but you need to understand the basics.

What is Maven?

Maven is a build automation tool that:

1. Manages dependencies — Downloads required libraries (Java JARs)

2. Compiles code — Converts source Java to compiled bytecode

3. Runs tests — Executes unit and integration tests

4. Packages artifacts — Creates deployable bundles (JARs, ZIPs)

5. Deploys — Uploads packages to servers

Without Maven, you'd manually download 100+ libraries, manage version conflicts, compile classes, and package files. Maven automates all of this.

Maven Project Structure

Every AEM project follows Maven's standard structure:

your-aem-project/
├── pom.xml                    ← Project configuration (dependencies, plugins)
├── core/                      ← Core Java code (Sling Models, Services)
│   └── src/main/java/
│       └── com/example/aem/
│           ├── models/        ← Sling Models
│           ├── services/      ← OSGi Services
│           └── listeners/     ← Event listeners
├── ui.apps/                   ← Frontend (components, templates)
│   └── src/main/content/
│       └── jcr_root/apps/
│           └── your-site/
│               └── components/
└── ui.content/                ← Content (pages, assets, workflows)
    └── src/main/content/
        └── jcr_root/content/

Key Files:

1. pom.xml — Project Configuration

<project>
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.example</groupId>              <!-- Your organization -->
    <artifactId>aem-project</artifactId>       <!-- Project name -->
    <version>1.0.0-SNAPSHOT</version>           <!-- Project version -->
    <packaging>pom</packaging>                  <!-- Parent project -->
    
    <!-- Dependencies -->
    <dependencies>
        <dependency>
            <groupId>org.apache.sling</groupId>
            <artifactId>org.apache.sling.models.api</artifactId>
            <version>1.3.8</version>
        </dependency>
    </dependencies>
    
    <!-- Build plugins -->
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.felix</groupId>
                <artifactId>maven-bundle-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

2. Common Maven Commands

You'll use these commands constantly:

# Compile code
mvn clean compile

# Run tests
mvn test

# Package for deployment
mvn clean package

# Deploy to AEM instance (auto-install)
mvn clean install -PautoInstallBundle

# Deploy entire project
mvn clean install -PautoInstallPackage

# Skip tests (faster, but not recommended)
mvn clean install -DskipTests

# View dependency tree
mvn dependency:tree

# Download dependencies
mvn dependency:resolve

3. Maven Profiles and Properties

AEM projects use profiles for different environments:

<profiles>
    <!-- Development profile (local instance) -->
    <profile>
        <id>autoInstallBundle</id>
        <properties>
            <aem.host>localhost</aem.host>
            <aem.port>4502</aem.port>
        </properties>
    </profile>
    
    <!-- Production profile -->
    <profile>
        <id>production</id>
        <properties>
            <aem.host>prod-server.com</aem.host>
            <aem.port>4502</aem.port>
        </properties>
    </profile>
</profiles>

Use the right profile when building:

mvn clean install -PautoInstallBundle  # Deploy to local dev
mvn clean install -Pproduction         # Deploy to production

4. Dependency Management

Maven automatically downloads and manages JAR versions. A dependency looks like:

<dependency>
    <groupId>org.apache.sling</groupId>           <!-- Organization -->
    <artifactId>org.apache.sling.models.api</artifactId> <!-- Library name -->
    <version>1.3.8</version>                      <!-- Version -->
    <scope>provided</scope>                       <!-- provided = AEM includes it -->
</dependency>

Scopes:

• compile — Required at runtime (included in package)

• provided — AEM provides it (don't include)

• test — Only for tests

• runtime — Only needed at runtime

Why This Matters: Using provided for AEM libraries prevents version conflicts.

5. Common Maven Issues and Solutions

Issue: "BUILD FAILURE - Cannot find dependency"

Solution: Run mvn clean install
Maven downloads dependencies automatically

Issue: "Plugin not found"

Solution: Check pom.xml has correct groupId and artifactId
Update Maven version: mvn --version

Issue: "Tests fail, but I don't want to fix them yet"

# Skip tests (not recommended for production)
mvn clean install -DskipTests

Issue: "How do I know which version of a library to use?"

Maven Central Repository: https://mvnrepository.com/
Search for the library, copy the dependency block

What You Should Be Able to Do:

• Understand the difference between groupId, artifactId, and version

• Read and modify a pom.xml file

• Run Maven commands (mvn clean install, mvn test)

• Understand Maven dependency scopes

• Troubleshoot common Maven errors

• Know which profile to use for different environments

Self-Assessment:

• ✅ Can you explain what Maven does without looking at docs?

• ✅ Have you modified a pom.xml file?

• ✅ Can you run mvn clean install and understand what's happening?

• ✅ Do you know the difference between provided and compile scope?

If Maven is new, spend a few hours learning it before AEM development.

Part 4: Digital Marketing Fundamentals - Why This Matters

Here's where many developers struggle: they don't understand why they're building what they're building.

AEM is not built for developers—it's built for marketers. Every feature, workflow, and design choice in AEM serves marketing and business goals. As an AEM developer, understanding digital marketing transforms you from someone writing code that works into someone writing code that drives business results.

The Gap: Developers vs. Marketers

Traditional Developer Mindset:

"I'll build the feature exactly as requested. The code is clean, it's fast, and it does what the ticket says."

AEM Developer Mindset:

"I'll build the feature understanding the marketing goal. I'll ask: How will this drive conversions? How will marketers use this? What data do we need? How do we measure success?"

Digital Marketing Basics Every AEM Developer Should Know

1. Customer Journey and Touchpoints

Understanding the customer journey changes how you build:

Website Visitor Journey:
Awareness → Consideration → Decision → Retention
   ↓           ↓              ↓          ↓
 Blog Post   Product Page  Shopping Cart  Email
 (SEO)      (Conversion)  (Purchase)    (Loyalty)

As an AEM developer:

• Blog Post (Awareness): Optimize for search engines (SEO), create content that ranks

• Product Page (Consideration): Build components that showcase benefits, specs, reviews

• Shopping Cart (Decision): Build frictionless checkout, trust signals

• Email (Retention): Build email-safe components, track engagement

Why This Matters:
When asked to build a "featured products component," knowing the customer journey tells you:

• Should it prioritize new products or best-sellers?

• Should it show reviews (builds trust)?

• Should it show inventory status (urgency)?

• Should it track clicks (measure effectiveness)?

2. Conversion Rate Optimization (CRO)

Conversion Rate is: (Conversions / Total Visitors) × 100

If 1M visitors come to your site monthly and only 10k buy, your conversion rate is 1%. Every 0.1% improvement = 1,000 more customers.

AEM Components and CRO:

A/B Testing Example:

Version A: "Shop Now" button (blue)
  → 1% conversion rate

Version B: "Limited Time Offer" button (red)
  → 1.5% conversion rate

Winner: Version B
Over 1M visitors/month: 5,000 additional customers

As an AEM developer, you need to:

• Build components that support A/B testing

• Understand how AEM personalization works

• Know that even small changes can significantly impact business metrics

• Build forms that track conversion steps (where do users drop off?)

Code Example: Tracking conversions

@Model(adaptables = SlingHttpServletRequest.class)
public class CheckoutButton {
    @Inject
    private SlingHttpServletRequest request;
    
    @PostConstruct
    protected void init() {
        // Track button click for analytics
        // Marketers will A/B test: "Shop Now" vs. "Complete Purchase"
        // Help them measure which performs better
    }
}

3. Search Engine Optimization (SEO)

SEO is how customers find your site. Organic search is the #1 traffic driver for most sites.

SEO Fundamentals:

1. Keywords — What words do customers search for?

   • "running shoes" vs. "womens trail running shoes"

   • AEM components should make it easy to optimize for keywords

2. Meta Tags — Tell search engines what the page is about

   HTML

   Copy

   <title>Women's Trail Running Shoes | adidas</title>
   <meta name="description" content="Shop lightweight trail running shoes for women...">

3. Headings Hierarchy — Structure content with H1, H2, H3

   HTML

   Copy

   <h1>Nike Air Max Shoes</h1>        <!-- Only one H1 per page -->
   <h2>Features</h2>
   <h2>Customer Reviews</h2>

4. Mobile Optimization — Google ranks mobile-first

   • Your components must be fully responsive

   • Images must load fast on mobile

   • Text must be readable on small screens

5. Page Speed — Every 1 second delay = 7% fewer conversions

   • Lazy-load images

   • Minimize JavaScript

   • Compress assets

How AEM Helps SEO:

• Built-in sitemap generation

• Structured data (Schema.org) support

• Mobile-responsive components

• Caching and CDN ready

• SEO-friendly URL structure

As an AEM Developer:

• Build semantic HTML (affects rankings)

• Optimize images for web (affects speed)

• Make components mobile-responsive (affects rankings)

• Support AEM's SEO features (canonical tags, redirects)

4. Email Marketing

Email is one of the highest-ROI marketing channels. Many AEM projects include email campaigns.

Email Best Practices:

1. Responsive Design — Email clients include Outlook, Gmail, Apple Mail (all render differently)

   • Test components in multiple email clients

   • Inline CSS (most email clients don't support stylesheets)

   • Use tables for layout (more reliable than divs)

2. Call-to-Action (CTA) — The button/link you want customers to click

   HTML

   Copy

   <!-- Email CTA is different from web -->
   <!-- Must be large, obvious, contrastive -->
   <table>
       <tr>
           <td style="background-color: #FF6B6B; padding: 15px; text-align: center;">
               <a href="https://example.com/shop" style="color: white; font-weight: bold;">
                   Shop Sale →
               </a>
           </td>
       </tr>
   </table>

3. Tracking — Marketers want to know: Who opened? Who clicked? Who converted?

   • Add tracking parameters to URLs

   • Track open rates with pixel tracking

   • Measure click-through rates

AEM's Email Capabilities:

• Build components that render to HTML for email

• Support dynamic content (personalized emails)

• Track engagement metrics

• A/B test subject lines and content

5. Customer Segmentation and Personalization

Marketing isn't one-size-fits-all. Different customers have different needs.

Segmentation Example:

All Visitors (1M/month)
├── New Visitors (200k) → Show: "Welcome, get 10% off"
├── Returning Visitors (600k) → Show: "Your saved items"
├── High-Value Customers (200k) → Show: "Exclusive VIP offers"
└── Churned Customers (inactive 90+ days) → Show: "We miss you, come back"

AEM Personalization:

@Model(adaptables = SlingHttpServletRequest.class)
public class BannerComponent {
    public String getBannerMessage() {
        // Check if visitor is new or returning
        if (isNewVisitor()) {
            return "Welcome! Get 10% off your first order";
        } else if (isHighValue()) {
            return "Exclusive VIP access to new collections";
        } else {
            return "Shop our latest arrivals";
        }
    }
}

Business Impact:

• Personalized emails get 6x higher conversion rates

• Personalized recommendations increase average order value

• Segmented messaging increases engagement

6. Analytics and Measurement

If you can't measure it, you can't optimize it.

Key Metrics:

• Traffic — Number of visitors

• Bounce Rate — % of visitors who leave without interacting (high = bad)

• Average Session Duration — How long do visitors stay?

• Conversion Rate — % of visitors who complete desired action

• Revenue per Visitor — How much $ does each visitor generate?

AEM and Analytics:

• Integrate with Adobe Analytics to track visitor behavior

• Track page views, clicks, form submissions

• Measure which components drive conversions

• Test variations and measure winners

Example: Component Analytics

@Model(adaptables = SlingHttpServletRequest.class)
public class ProductCard {
    @PostConstruct
    protected void init() {
        // Track product views for analytics
        // Marketers can see: Which products are viewed most?
        // Which convert visitors to buyers?
        // Use this data to optimize product placement
    }
}

Why Digital Marketing Understanding Makes You a Better AEM Developer

Scenario 1: Building a Product Search Component

❌ Without Marketing Knowledge:

Developers builds a search that returns all matching products, ranked by ID.

✅ With Marketing Knowledge:

Developer builds a search that:

• Returns best-sellers first (higher conversion)

• Shows products with high reviews (builds trust)

• Highlights new arrivals (drives traffic)

• Tracks which searches convert (data for optimization)

• A/B tests: "Sort by relevance" vs. "Sort by popularity"

Scenario 2: Building an Email Campaign Component

❌ Without Marketing Knowledge:

Developer builds component that looks identical to web version.

✅ With Marketing Knowledge:

Developer builds component that:

• Renders with inline CSS for email client compatibility

• Includes tracking pixels for open rates

• Uses dynamic content for personalization

• Tests in multiple email clients (Outlook, Gmail, etc.)

• Measures: open rate, click-through rate, conversion rate

Scenario 3: Building a Personalization Rule

❌ Without Marketing Knowledge:

Developer implements exactly what was requested.

✅ With Marketing Knowledge:

Developer asks:

• What's the business goal? (increase AOV? reduce bounce rate?)

• Who should see this? (new vs. returning? by geography?)

• How do we measure success? (conversion? engagement time?)

• Can we A/B test this? (which variation performs better?)

• What data do we need to track?

Digital Marketing Topics You Should Understand

How to Learn Digital Marketing (Without Being a Marketer)

You don't need an MBA in marketing, but you need basic literacy:

Learn These First:

1. Complete Google Analytics 4 Certification (Free, ~4 hours)

   • Understand how marketers measure success

   • Learn about user behavior tracking

   • See what data matters

2. Read "Traction" by Gabriel Weinberg (Easy, business book)

   • Understand different marketing channels

   • See how marketing and product work together

   • Learn what drives business growth

3. Watch Marketing Fundamentals on YouTube (1-2 hours)

   • Customer journey

   • Funnel optimization

   • Email marketing basics

   • Social media strategy

4. Understand Your Company's Business Model

   • How do we make money?

   • Who is our customer?

   • What problem do we solve?

   • What drives conversions?

5. Ask Marketing Questions

   • In code reviews, ask: "How does this help our marketing goals?"

   • In meetings, ask: "How will we measure success?"

   • Understand the "why" behind feature requests

Key Takeaways

What You Need Before AEM

Technical Prerequisites:

• HTML/CSS/JS: Strong foundation in web technologies (not expert level, but competent)

• Java: Solid understanding of OOP, annotations, collections, streams

• Maven: Basic knowledge to build, test, deploy projects

• IDE: Comfort with debugging in IntelliJ or Eclipse

Why Digital Marketing Matters

• AEM is built for marketers, not developers

• Understanding marketing goals transforms you from "code writer" to "business contributor"

• Digital marketing knowledge helps you:

  • Ask the right questions

  • Build components that drive conversions

  • Understand why features exist

  • Measure success

  • Communicate with stakeholders

Learning Order

1. Web Technologies (HTML, CSS, JavaScript)

2. Java Programming (OOP, collections, streams)

3. Maven (build tool basics)

4. Digital Marketing (fundamentals, analytics, CRO)

The Advantage

Developers with both technical and marketing knowledge become:

• More effective AEM developers

• Better communicators with marketing teams

• Contributors to business strategy, not just code writers

• More valuable to their organizations

• Better able to judge feature requests critically