Online Analytical Processing
(OLAP) in Business Analytics
A Key Tool for Data Analysis &
Decision-Making
What is OLAP?
• - OLAP = Online Analytical Processing
• - Technology for interactive, multidimensional
analysis of large data sets
• - Supports business decision-making with fast,
summarized data insights
• - Complementary to OLTP (Online Transaction
Processing)
Why OLAP in Business Analytics?
• ✅ Helps uncover trends and patterns
• ✅ Enables strategic planning & forecasting
• ✅ Allows quick answers to complex queries
• ✅ Supports better decision-making through
data insights
Key Features of OLAP
• - Multidimensional view of data
• - Fast query and retrieval performance
• - Interactive analysis: slice, dice, drill down,
roll up
• - Supports aggregated and summarized data
OLAP vs OLTP
• Aspect | OLTP | OLAP
• -------|-------|-----
• Purpose | Day-to-day operations | Decision-
making
• Operations | Insert, Update, Delete | Read &
Analyze
• Data | Current, transactional | Historical,
aggregated
• Speed | Fast writes | Fast reads
OLAP Operations
• Operation | What it Does
• ----------|-----------------
• Slice | Selects a single dimension (e.g., Sales in
2025)
• Dice | Creates a sub-cube (e.g., Sales in 2025,
Region = East)
• Drill Down | From summary to details (e.g.,
Year → Month)
• Roll Up | From details to summary (e.g.,
Month → Year)
Types of OLAP
• MOLAP (Multidimensional OLAP)
1 ️
1️⃣
• - Data stored in cubes, fast for summarized
queries
• ROLAP (Relational OLAP)
2️⃣
• - Data stored in relational databases, good
for detailed queries
• HOLAP (Hybrid OLAP)
3 ️
3️⃣
• - Combines MOLAP & ROLAP benefits
Business Applications of OLAP
• 📈 Retail: Analyze sales by region, product, &
time
• 💰 Finance: Monitor profitability across
branches
• 🏥 Healthcare: Track patient trends & outcomes
• 📣 Marketing: Evaluate campaign effectiveness
& customer segments
Advantages of OLAP
• 🌟 Fast query response
• 🌟 Interactive & intuitive for business users
• 🌟 Supports complex calculations & forecasting
• 🌟 Helps discover hidden insights in big data
Summary
• - OLAP enables fast, multidimensional analysis
of business data
• - Essential for business analytics & decision-
making
• - Complements transactional systems by
analyzing historical & aggregated data
Thank You!
• Any Questions?

OLAP_in_Business_Analytics.pptx online Analytics

  • 1.
    Online Analytical Processing (OLAP)in Business Analytics A Key Tool for Data Analysis & Decision-Making
  • 2.
    What is OLAP? •- OLAP = Online Analytical Processing • - Technology for interactive, multidimensional analysis of large data sets • - Supports business decision-making with fast, summarized data insights • - Complementary to OLTP (Online Transaction Processing)
  • 3.
    Why OLAP inBusiness Analytics? • ✅ Helps uncover trends and patterns • ✅ Enables strategic planning & forecasting • ✅ Allows quick answers to complex queries • ✅ Supports better decision-making through data insights
  • 4.
    Key Features ofOLAP • - Multidimensional view of data • - Fast query and retrieval performance • - Interactive analysis: slice, dice, drill down, roll up • - Supports aggregated and summarized data
  • 5.
    OLAP vs OLTP •Aspect | OLTP | OLAP • -------|-------|----- • Purpose | Day-to-day operations | Decision- making • Operations | Insert, Update, Delete | Read & Analyze • Data | Current, transactional | Historical, aggregated • Speed | Fast writes | Fast reads
  • 6.
    OLAP Operations • Operation| What it Does • ----------|----------------- • Slice | Selects a single dimension (e.g., Sales in 2025) • Dice | Creates a sub-cube (e.g., Sales in 2025, Region = East) • Drill Down | From summary to details (e.g., Year → Month) • Roll Up | From details to summary (e.g., Month → Year)
  • 7.
    Types of OLAP •MOLAP (Multidimensional OLAP) 1 ️ 1️⃣ • - Data stored in cubes, fast for summarized queries • ROLAP (Relational OLAP) 2️⃣ • - Data stored in relational databases, good for detailed queries • HOLAP (Hybrid OLAP) 3 ️ 3️⃣ • - Combines MOLAP & ROLAP benefits
  • 8.
    Business Applications ofOLAP • 📈 Retail: Analyze sales by region, product, & time • 💰 Finance: Monitor profitability across branches • 🏥 Healthcare: Track patient trends & outcomes • 📣 Marketing: Evaluate campaign effectiveness & customer segments
  • 9.
    Advantages of OLAP •🌟 Fast query response • 🌟 Interactive & intuitive for business users • 🌟 Supports complex calculations & forecasting • 🌟 Helps discover hidden insights in big data
  • 10.
    Summary • - OLAPenables fast, multidimensional analysis of business data • - Essential for business analytics & decision- making • - Complements transactional systems by analyzing historical & aggregated data
  • 11.