What Is a Machine Learning Model?In TheoryIn PracticeRequired ComponentsDifferent ML Algorithms, Different MLOps ChallengesData ExplorationFeature Engineering and SelectionFeature Engineering TechniquesHow Feature Selection Impacts MLOps StrategyExperimentationEvaluating and Comparing ModelsChoosing Evaluation MetricsCross-Checking Model BehaviorImpact of Responsible AI on ModelingVersion Management and ReproducibilityClosing Thoughts