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Cet ouvrage présente les paradoxes des États africains au regard de leurs potentialités qui contrastent avec leur situation de dépendance vis-à-vis des puissances occidentales et des organisations internationales. Il plaide la sortie de ces États des instances de domination, en les conviant à exercer leur souveraineté sur les plans socioculturels, politiques et économiques. L'ouvrage, dans ses grandes lignes, propose que les États africains mènent des politiques publiques « désidéologisées » de la tutelle occidentale et les invite à tirer le meilleur profit de leurs ressources humaines, naturelles et de leurs partenariats.

What is Spin? Spin is a general tool for the specification and formal verification of software for distributed systems. It has been used to detect design errors in a wide range of applications, such as abstract distributed algorithms, data communications protocols, operating systems code, and telephone switching code. The verifier can check for basic correctness properties, such as absence of deadlock and race conditions, logical completeness, or unwarranted assumptions about the relative speeds of correctness properties expressed in the syntax of Linear-time Temporal Logic (LTL). The tool translates LTL formulae automatically into automata representations, which can be used in an efficient on-the-fly verifications procedure. This DIMACS volume presents the papers contributed to the second international workshop that was held on the Spin verification system at Rutgers University in August 1996. The work covers theoretical and foundational studies of formal verification, empirical studies of the effectiveness of different types of algorithms, significant practical applications of the Spin verifier, and discussions of extensions and revisions of the basic code.