Difference between top down and bottom up processing

Posted By: Sm Adminon: December 17, 2015In: Miscellaneous

Top down:
Top down is the flow of information from the top level which includes the opinions, suggestions, experience, etc. to the bottom level for the functioning of activities.
Bottom up:
Bottom up approach is the flow of information from the bottom level which includes the report and feedback to the higher level for the observation.
Differences:

Basis	Top down	Bottom up
Definition (www.oxforddictionaries.com)	Denoting a system of government or management in which actions and policies are initiated at the highest level; hierarchical.	Proceeding from bottom or beginning of hierarchy or process upwards; non-hierarchical.
Synonyms	Formal, common, good, through, whereby and mechanised	Head-on, formal, thus, whereby and via
Pronunciation	Eng (UK): / tɒp daʊn/ Eng (US): / täp doun/	Eng (UK): / ˈbɒtəm ʌp/ Eng (US): / ˈbädəm əp/
Word origin	It was originated in between 1960-65.
Advantages/Benefits	Its advantages are: funding agencies may require detailed plans implemented exactly as planned you are in control cost effective if successful easy to evaluate plans	Its advantages are: easier to engage partners, build up momentum possibility to use “free” resources through networking easier to engage target group easier to adapt to different needs ‘natural’ communication networks
Disadvantages	Its disadvantages are: Your target groups may need something different. difficult to engage partners and target group difficult to change even if it is not working	Its disadvantages are: networking itself may take up resources costs and staff may time per target member reached may be high you can’t have full control if you let people participate and influence your programme more difficult to evaluate and legitimate towards funding agencies
Example in Sentence	The ABC Company is using top down approach to flow the information.	The manager plans flows from bottom up approach