One of the first items which should be identified in resolving a problem or need is an objective in the various fields of knowledge as it enables determining which results must be achieved. Objectives are the starting point in identifying goals, processes, tasks and the people in charge; moreover, activities defined to fulfil their follow-up are based on a set of proposed objectives and enable evaluating results. This article shows how objectives can be defined and used in various fields, especially in software engineering, and depicts the flaws found.