Part I Altair COMPOSE and OML.- Chapter 1 General Information.- Chapter 2 Introduction to OML.- Chapter 3 Modeling and Simulation in OML.- Chapter 4 Optimization.- Chapter 5 Examples.- Part II Altair ACTIVATE.- Chapter 6 Introduction.- Chapter 7 Expression Blocks.- Chapter 8 Beyond Single Run Simulations.- Chapter 9 Examples.- Chapter 10 Formalism.- Chapter 11 Hybrid Systems.- Chapter 12 Activate-OML Interactions and Batch Simulation.- Chapter 13 Construction of New Blocks.- Chapter 14 Modelica Support.- Chapter 15 Other Activate Tools.