What the term hierarchical means is an understanding of risks because of different levels in a hierarchy, which can be explained as risks at “system-of-systems” level, individual system level, sub-system level and component level. What the term holographic modeling means is a multi-view image of a system, regarding to identifying vulnerabilities.

It is a integral methodology or philosophy that hierarchical holographic targeted at commanding and conveying the innate character of immanent different features and the attributes of a system, including perspectives, multiple aspects, views, facts, dimensions and hierarchies.

Hierarchical holographic models (HHM) thinks that is possible for any system to have no less than one conceptual (or mathematical) model. They attempt to command the position and perspectives which is included in diverse conceptual and mathematical models of the same system.

As the paper mentioned before, it is possible for sources of risk to be resolved into various kinds, including social, functional, operational, spatial and ecological risks. Marine, estuarine and terrestrial environments may be contained in ecological risks because each of these sources may be further resolved hierarchically.

Due to the marine environment, pelagic, benthic and shore environment may be explored usefully and respectively. From a single perspective and a holographic sub-model, each sub-model is a holistic perspective of the system.

As to a resource manager, one of the most tasks is to collect resource and screen better resource. However any management will face risks. And I will represent a multiple perspective of the problem of risk identification for the system through using the HHM method.

The frame of methodology for identifying all risk of sources which are related to the system comprise 8 primary perspectives, the first one is management of change, including interpersonal trust, personal trustworthiness, empowerment management and institutional adjustment, secondly program consequence such as technology, schedule, cost, all these elements should be considered.

The third one is temporal, which means planning and design, transformation, system expansion and steady state system acquisition. The forth is contract management, contractor, requirements for contracts and proposal, and integration of system. Sometime we will sign contractor with freelancers, which is needed to be treated seriously.

The fifth one is model, i.e. hardware, external, organizational, software and human; the sixth is information management including information storage, retrieval, process control, data analysis and information transmission. Information is vital for dealing with and finishing a project so that we should keep communicating with freelancers smoothly based on the requirements of clients. Then another is functional and geographical.

For instance, it is functional perspective for one vision or decomposition of the risk for database system, and the functional perspective pay attention to the diverse services which will be offered by the system.

The database system was resolved into five primary sub systems from a functional perspective. And then those functional areas were assessed for risk sources to other decompositions through referring to references crossly.

Another view of the HHM refers to carrying out the database over time. Although not every overlapping stage of the system achievements can be distinguished clearly, they consist of a subsystem in the tentative decomposition

When managing all kinds of freelances, we will face various problems and risks. Learn how to manage these risks will help us finish projects smoothly.