The phrase "a top down methodology" is correct and usable in written English.
It can be used when discussing approaches or strategies that start with a broad overview and then narrow down to specific details or actions.
Example: "In our project, we will implement a top down methodology to ensure that our overall goals are clearly defined before addressing individual tasks."
Alternatives: "a hierarchical approach" or "a centralized strategy".
Its modeling approach is based on a top-down methodology and takes into account trade information.
Pursuing a top-down methodology, we generate alternative messages and experimentally test these against an array of social engineering attempts.
The circuit has been designed using a top-down methodology that allows to discover the impact of low-level non-idealities on system-level performance.
To this end, the main requirements the architecture must fulfill are analyzed and a top-down methodology is employed to obtain the different types of modules that make it up.
Holistic approaches do not rely on tracking individuals but follow a top-down methodology in which the crowd is considered as a single entity.
The data are activity based costing data, the cost components of which are generated using a top-down methodology.
Several case studies in Austria and Germany demonstrate a top-down methodology and some results while stepwise calculating potentials from theoretical to technically feasible potentials and setting the scene for the definition of economic potentials based on scenarios and assumptions.
The national average cost of an outpatient visit in Ireland was estimated to be €130 in 2011 using a top-down methodology (National Casemix Programme, date of communication 29/09/2013), however no information is available on how this cost may vary across specialties.
This experiment confirmed the power of our "top down" methodology to reveal the presence of both unexpected and anticipated DNA adducts in in vivo samples through the combination of the full scan, MS, and MS signals.
A fuel-based, top-down, methodology, based on fuel consumption estimates derived from secondary source industry data that are suitable for a macro-level analysis, is used to estimate global shipping carbon emissions.
Based upon this framework, a top-down design methodology is derived.
