The article presents the study of the formation of financial support models for business projects and identifies key success factors in creating investment attractiveness for different groups of participants. It is proved that the theoretical basis of the research allows to expand the subject area and attract synergies, integration models and block algorithms of interaction between individual participants in the formation of financial resources for business projects (investment, credit) while expanding the use of financial aggregates. The factors influencing the construction of financial mechanisms for business projects are presented, the factors in terms of positive and negative consequences are given, some ways of developing financial instruments to attract resources and opportunities to eliminate certain risks and threats are proposed. The levers of funding for different groups are outlined, in particular, depending on the urgency of the project, industry and business, the involvement of participants in government or commercial organizations, the level of competitiveness of the project, the ability to use financial resources and social responsibility in general. The results of the study represent the essential content and possibilities of applied use of the basic tools of financial mechanisms: project financing, bank lending, investment and their subtypes. Mechanisms and algorithms for combining individual tools taking into account the stages of the life cycle and with the possibility of attracting investment in the process of conducting business projects are proposed. More real investment areas of attracting financial investments are presented on real examples to solve urgent issues of overcoming the crisis and ensuring the development of the economic system of the country and regions in the current conditions. Attention is paid to the study of the peculiarities of attracting financial support through state support programs, grant programs from domestic and foreign organizations with an understanding of their relevance in today's uncertainty and the importance of socially oriented entrepreneurship. Key words: business project, financial system, project financing, investment attractiveness, credit management, integration mechanisms, resource provision, efficiency.

The article considers the development of integration mechanisms as a direction of strategic management in the implementation of procedures for reengineering business projects. The basis for reengineering is certain production and commercial processes - business projects, which are separated from the general business structure of the company to ensure partial involvement of innovative tools to generate and implement appropriate algorithms for reengineering and strengthen action on specific market activities. Theoretical developments on outlining the possibilities of ensuring the competitive development of business projects through the involvement of tools in the field of management, the formation of various models of organizational structures and areas of attracting financial resources are presented. It is proposed to build a reengineering model for projects through the basis of technological development, organizational development and market development. Prospects for the integration of organizational and management system through a set of tools and taking into account the results of their interaction are outlined. The directions of attraction of financial resources to business projects are presented, possibilities and prospects of project financing are defined, formation of a portfolio for increase of investment attractiveness, attraction of crediting mechanisms are considered. Recommendations for involving the integration mechanism of business project reengineering are developed and algorithms of procedural implementation are presented with definition of features of introduction of risk management models. The article provides a theoretical basis and formulates practical proposals for effective development of business projects on the basis of reengineering and activation of market behavior. Market activity of business entities in the implementation of individual projects is based on the prerequisites for the creation of internal key competencies and external market success factors by strengthening the innovative orientation of business in the current uncertainty of economic systems. Keywords: business project, business process reengineering, organizational mechanism, management mechanism, financial mechanism, integration mechanisms, risk management, effectiveness.

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