The phrase "a top down implementation" is correct and usable in written English.
It can be used when discussing a method or approach that starts from the highest level of a system or organization and works down to the lower levels.
Example: "The project will follow a top down implementation strategy to ensure that all departments align with the company's overall goals."
Alternatives: "a hierarchical implementation" or "a centralized implementation".
He is the person in charge of a top-down implementation of Linux software at Merrill Lynch.
Since the mid-2000s, the Chinese government has advanced an aggressive green building campaign, which is distinguished by its speed, scale, and evolution from one of voluntary participation to a top-down implementation through administrative hierarchies.
A top-down implementation was chosen for the main policy parts.
Although the Sendai Framework, compared with HFA, emphasizes a "people-centered," "bottom-up" shift in broad risk governance, the underlying funding and institutional mechanisms (Priority 3 in SFDRR) appear to assume a technocentric, top-down implementation of DRR strategies.
A business-as-usual, top-down implementation of SFDRR, operating through donor-driven programs and projects that do not strategically incorporate local communities through multilevel risk governance institutions, will not likely change the increasing trend of disasters.
This work has revealed promise in the use of a theoretically informed framework for bottom-up implementation of guidelines, which provides a practical alternative to top-down implementation.
There was in particular a substantive move away from the initial "top-down" implementation model to an increase in local involvement in decision making, particularly in London and the Southern areas.
Previously the top-down implementation of a screening programme met with opposition; the racial identity of white patients was questioned, social concerns about the interbreeding of races were voiced (Tapper 1999).
In none of the case study countries, the community orientation is dominant, but in Germany and Denmark, a combination seems to be possible of both of top-down implementation of ambitious environmental targets and local facilitation and innovation, thus creating more institutional space for community initiatives.
This seems inconsistent with a recently proposed interpretation of frontal theta phase synchrony reflecting the top-down implementation of control in response to general signals of "surprise" (Cavanagh & Frank, 2014).
