Characteristics: Advantages, Disadvantages. Tempera is typically applied onto a prepared surface. Wood panel paintings, for instance, were prepared with layers of gesso (a mixture of size and chalk) to form a smooth surface. The tempera was then applied (over a prepared drawing or sketch) and built up slowly in a series of thin, transparent layers.
Corporations are defined as entities because they have a legal identity separate from those of their owners.orporations are defined as entities because they have a legal identity separate from those of their owners.
Definition. A group of companies is an economic entity formed of a set of companies which are either companies controlled by the same company, or the controlling company itself.Controlling a company means having the power to appoint the majority of its directors.e define: - the restricted contour, or core, of the group as all the companies more than 50% owned, directly or indirectly, by a parent company heading the group; the parent company is not more than 50% owned either directly or indirectly by another company. In this definition, groups form pairwise disjoint sets;