Both of are technique to run Govt. Also a types of managerial way to control public interest

Max Weber is correct. His prognosis was on the spot when he warned about the growing bureaucracy in the West.

Bureaucracy is often synonymous to excessive administrative overbearance in decision-making by state officials as opposed democracy which associated with decisions by elected representatives, often with less regards to bureaucratic bottlenecks. Ideally, both democracy and bureaucracy should be complementary - a striking balance

Bureaucracy can only be tackled with more democracy, with more citizen participation and control.

bureaucracy is the ideal type for all formal organizations. The characteristics of organizations that follow this bureaucratic system are the division of labor and specialization, impersonal orientation, power hierarchical, rules, long career, and efficiency. The dynamics of modern state administration are characterized by bureaucratic system devices. That is the characteristic of the growth of democracy and bureaucratization

Même si weber n'est pas de cet avis, moi je préfère la démocratie de Machiavel, et je pense que ça ne devrait pas être le fait de prétendre associer le peuple aux décisions et les museler dans le réel, la Démocratie devrait être cette expression libre de la manière de diriger, tels JOSEPH DÉSIRE MOBUTU, qui disait " un seul président, un seul parti politique et une seule nation" Il a été traité de dictature pourtant c'est ça la démocratie. Les monarchies Européennes et Britanniques en savent quelques chose. Il s'agit tout simplement du "God save the Queen/King. Par ailleurs la bureaucratie est simplement synonyme de domination administrative excessive dans la prise de décision par l'état via ses agents.

Both are mechanisms designed to operate institutions. Democracy is conventional because it synchronises, while bureaucracy is administrative due to technicality.