Solution

The correct answer is Option 1

Key Points

• COCOMO (Constructive Cost Model): COCOMO is a widely used model for estimating software development effort, cost, and schedule. It is based on the size of the software project in KLOC (thousands of lines of code).
• Basic COCOMO: Basic COCOMO provides estimates of effort and schedule using a simple mathematical formula depending on the project type (organic, semi-detached, or embedded).
• Organic Software: Organic projects are small, simple, and have well-understood requirements. The development team is experienced, and the project operates in a stable environment.

Detailed Solution

• The formula for estimating effort in basic COCOMO for organic software is:
  
  E = 2.4 × (KLOC)^1.05 PM
  Where:
  • E: Effort in person-months (PM)
  • KLOC: Thousands of lines of delivered code
• The given options and the correct formula are as follows:
  • Option 1: E = 2.4 × (KLOC)^1.05 PM ✅ (Correct)
  • Option 2: E = 3.4 × (KLOC)^1.056 PM ❌
  • Option 3: E = 2.0 × (KLOC)^1.05 PM ❌
  • Option 4: E = 2.4 × (KLOC)^1.057 PM ❌

Hence, the correct answer is: Option 1: E = 2.4 × (KLOC)^1.05 PM