[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] abstractions      models  action states, activity diagrams      final action state      initial action state      simple action state  actions     behavior sequences      conditional      optional      repeated      state and      state diagrams         getDateAndTime          LogMessage  activations, sequence diagrams  active simple states  active state  activity diagrams      action states  2nd      concurrency      control-flow transitions      decisions      final action state      flow transitions      initial action state      object-flow      swimlanes  2nd  activity modeling  actor classes  actor generalizations  actor instances  actors  2nd      backup system      human resource      project manager      resource manager      system administrator  aggregation     association ends      link ends  alphabet, language and  ancestors  anonymous objects  APIs (application programming interfaces)  applied profile dependency  applying tags  architectural elements  architectural views      component      deployment      dynamic      environment model architectural view      implementation      static      user  architecture     iteration and      language architecture  architecture-centric processes  artifacts  association classes  association ends      aggregation      composite aggregation      multiplicity      navigation      qualifiers      rolenames  association roles     collaboration diagrams      links and  associations  2nd  3rd      association ends         aggregation          composite aggregation          multiplicity          navigation          qualifiers      binary associations          interfaces          types      collaboration diagrams      communicate associations      communication associations      n-ary associations          interfaces          types      type-instance dichotomy  attribute values, object diagrams  attributes      classes          syntax      instance scoped      object scoped      object values      objects      simple constraints      structoral features