The Master Chief's backstory is never explained in the games. A prequel of Halo: Combat Evolved, the 2001 novel The Fall of Reach, reveals much of the character's history and was released as a companion to the game.
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;
The forming of corporate groups usually involves consolidation via mergers and acquisitions, although the group concept focuses on the instances in which the merged and acquired corporate entities remain in existence rather than the instances in which they are dissolved by the parent.eff defines business group as a group of companies that does business in different markets under common administrative or financial control whose members are linked by relations of interpersonal trust on the basis of similar personal ethnic or commercial background.