Conceptual modelA conceptual model is a representation of a system. It consists of concepts used to help people know, understand, or simulate a subject the model represents. In contrast, a physical model focuses on a physical object such as a toy model that may be assembled and made to work like the object it represents. The term may refer to models that are formed after a conceptualization or generalization process. Conceptual models are often abstractions of things in the real world, whether physical or social.
Variation naturelleEn démographie, la variation naturelle ou le solde naturel (ou l'accroissement naturel) est la différence entre le nombre de naissances vivantes et le nombre de décès sur un territoire au cours d'une période. Elle peut être soit positive, soit négative, soit nulle. L'accroissement naturel (ou excédent naturel) de la population est le cas où la variation naturelle est positive, ce qui implique que le nombre de naissances vivantes dépasse, sur la période considérée, le nombre de décès.
Linear video editingLinear video editing is a video editing post-production process of selecting, arranging and modifying images and sound in a predetermined, ordered sequence. Regardless of whether it was captured by a video camera, tapeless camcorder, or recorded in a television studio on a video tape recorder (VTR) the content must be accessed sequentially. For the most part video editing software has replaced linear editing.
