The following International Abstracts in Operations Research Classification numbers appear in the entries in the Annual Comprehensive Index:
- 1010-Accidents
- 1015-Allocation: Resources
- 1020-Behaviour
- 1025-Bidding
- 1030-Communication
- 1040-Computers
- 1044-Computers: Calculation
- 1046-Computers: Data-structure
- 1048-Computers: Information
- 1050-Control
- 1060-Cybernetics
- 1070-Decision
- 1074-Decision: Applications
- 1076-Decision: Rules
- 1078-Decision: Studies
- 1080-Demand
- 1090-Design
- 1100-Distribution
- 1110-Equipment
- 1120-Experiment
- 1130-Facilities
- 1140-Financial
- 1150-Forecasting
- 1150-Forecasting: Applications
- 1160-Gaming
- 1170-Growth
- 1180-Information
- 1190-Innovation
- 1200-Inspection
- 1210-Inventory
- 1214-Inventory: Order Policies
- 1216-Inventory: Storage
- 1220-Investment
- 1230-Learning
- 1240-Location
- 1250-Maintenance
- 1250-Maintenance, Repair & Replacement
- 1260-Management
- 1270-Marketing
- 1280-Materials
- 1290-Measurement
- 1300-Organization
- 1310-Performance
- 1320-Personnel
- 1320-Personnel & Manpower Planning
- 1330-Planning
- 1340-Production
- 1344-Production: FMS
- 1346-Production: JIT
- 1348-Production: MRP
- 1350-Project Management
- 1360-Quality & Reliability
- 1360-Reliability
- 1365-Queues: Applications
- 1370-Research
- 1375-Risk
- 1380-Scheduling
- 1390-Search
- 1400-Service
- 1420-Storage
- 1430-Supply
- 1440-Systems
- 1450-Testing
- 1455-Timetabling
- 1460-Values
- 1465-Vehicle Routing & Scheduling
- 1470-Work
- 2005-Advertising
- 2010-Agriculture & Food
- 2010-Agriculture & Food
- 2020-Biology
- 2030-Commerce
- 2040-Communications
- 2045-Community OR
- 2050-Construction
- 2050-Construction & Architecture
- 2055-Cutting Stock
- 2060-Ecology
- 2070-Economics
- 2080-Education
- 2085-Energy
- 2090-Engineering
- 2100-Finance
- 2100-Finance & Banking
- 2110-Forestry
- 2115-Geography
- 2115-Geography & Environment
- 2120-Government
- 2130-Health Services
- 2140-Law
- 2140-Law & Law Enforcement
- 2150-Libraries
- 2160-Manufacturing Industries
- 2165-Marketing
- 2170-Medicine
- 2180-Meteorology
- 2190-Military
- 2190-Military & Defence
- 2200-Mineral Industries
- 2210-Petroleum
- 2220-Politics
- 2230-Public Service
- 2240-Recreation
- 2240-Recreation & Tourism
- 2250-Science
- 2260-Social
- 2270-Space
- 2280-Sports
- 2290-Transportation: Air
- 2300-Transportation: General
- 2310-Transportation: Rail
- 2320-Transportation: Road
- 2330-Transportation: Water
- 2340-Urban Affairs
- 2350-Water
- 2360-World Affairs
- 3010-Adaptive Processes
- 3020-Artificial Intelligence
- 3024-Artificial Intelligence: Decision Support
- 3026-Artificial Intelligence: Expert Systems
- 3030-Calculus of Variations
- 3040-Combinatorial Analysis
- 3050-Computational Analysis
- 3054-Computational Analysis: Parallel Computers
- 3056-Computational Analysis: Personal Computers
- 3060-Control Processes
- 3065-Cost Benefit Analysis
- 3070-Decision Theory
- 3070-Decision Theory
- 3070-Decision Theory: Multi
- 3070-Decision Theory: Multiple Criteria
- 3074-Decision Theory: Multiple Criteria
- 3080-Differential Equations
- 3090-Fuzzy Sets
- 3100-Game Theory
- 3100-Games
- 3110-Gradient Methods
- 3120-Graphs
- 3130-Heuristics
- 3140-Information Theory
- 3150-Lagrange Multipliers
- 3160-Markov Processes
- 3170-Matrices
- 3190-Networks
- 3192-Networks: Flow
- 3194-Networks: Path
- 3196-Networks: Scheduling
- 3198-Neural Networks
- 3200-Numerical Analysis
- 3210-Optimization
- 3216-Optimization: Simulated Annealing
- 3220-Probability
- 3230-Programming: Assignment
- 3235-Programming: Branch and Bound
- 3240-Programming: Convex
- 3250-Programming: Critical-Path
- 3260-Programming: Dynamic
- 3270-Programming: Fractional
- 3280-Programming: Geometric
- 3285-Programming: Goal
- 3290-Programming: Integer
- 3300-Programming: Linear
- 3310-Programming: Markov Decision
- 3320-Programming: Mathematical
- 3325-Programming: Multiple Criteria
- 3330-Programming: Network
- 3340-Programming: Nonlinear
- 3350-Programming: Parametric
- 3360-Programming: Probabilistic
- 3370-Programming: Quadratic
- 3380-Programming: Transportation
- 3385-Programming: Travelling Salesman
- 3390-Queues
- 3390-Queues: Theory
- 3400-Sets
- 3410-Simulation
- 3412-Simulation: Analysis
- 3414-Simulation: Applications
- 3416-Simulation: Languages & Programs
- 3418-Statistics: Data Envelopment Analysis
- 3420-Statistics: Decision
- 3430-Statistics: Distributions
- 3440-Statistics: Empirical
- 3450-Statistics: Experiment
- 3460-Statistics: General
- 3470-Statistics: Inference
- 3480-Statistics: Multivariate
- 3490-Statistics: Regression
- 3500-Statistics: Sampling
- 3510-Stochastic Processes
- 3520-Textbooks: General
- 3530-Time Series
- 3530-Time Series & Forecasting Methods
- 4005-Developing
- 4005-Developing Countries
- 4010-Education
- 4010-Education in OR
- 4020-History
- 4025-OR in a Region
- 4025-OR in a Region or Country
- 4030-Philosophy
- 4040-Practice
- 4050-Relationships with other disciplines