DDA meaning in Academic & Science ?

Answer:

What is Demand-driven acquisition mean?

Patron-driven acquisition (PDA), also referred to as demand-driven acquisition (DDA), is a model of library collection development in which a library only purchases materials when it is clear that a patron wants them. In an ideal transaction, libraries provide the patron with access to search engines, academic databases and/or library catalogs from which the patron can request items. When certain thresholds are reached for an item (e.g., number of pages read or number of requests), the library purchases the item and delivers instant access to patrons. The library may acquire the resource permanently, or acquire a license to use the resource only at certain times or in certain ways. Since content purchased is in digital format, "PDA emphasizes collecting for and at the moment of need" instead of collecting with a long-term focus.

PDA is frequently associated with e-book collections, although print and hybrid PDA options also exist. There are several benefits to focusing this practice on the use of digital content: delivery is instantaneous; e-books require no physical space, which requires specific costs to maintain; libraries can afford patron access when they might not be able to afford to buy materials, increasing the collection's ability; and purchases are guaranteed usage, which is an important consideration when purchasing materials.

reference

Full Form	Category
Defense Data Architecture	Academic & Science
Discrete Dipole Approximation	Academic & Science
Dembling + Dembling Architects, P.C.	Academic & Science
Danish Data Archive	Academic & Science
Demand-driven acquisition	Academic & Science
Diesel Driving Academy	Academic & Science
Division on Dynamical Astronomy	Academic & Science
Dance Academy	Academic & Science
Demand Deposit Account	Accounts and Finance
Depreciation, Depletion and Amortizatinon	Business
Demand Deposit Accounting	Business
Dividend Disbursing Agent	Business
Demello D'entremont Associates	Business
Doha Development Agenda	Business
Developmental Disabilities Association	Community
Decentralized Derivatives Association	Community
Discuss, Do, and Achieve	Community
Disabled Drivers Association	Community
Delhi Development Authoritydefault	Community
Dogs for Disabled Americans	Community
Dallas Darts Association	Community
Dairy Development Authority	Community
Dallas Diagnostic Association	Community
Developer Distribution Agreement	Computing
Design Data Analysis	Computing
Dual Display Architecture	Computing
Distributed Data Access	Computing
Direct Directional Antenna	Computing
Due Data Availability	Computing
Digital Data Acquisition	Computing
Dynamic Digital Advertising	Computing
Digital Dealers Association	Computing
Disk Drive Adapter	Computing
Database Driven Applications	Computing
Delhi Development Authority	Delhi Government
Digital Differential Analyzer	Electronics
Design Discussion Archive	General
Demand Deposit Accounts	General
Day by Day Agape	General
Digestive Disorders Associates Digestive Disorders Associates	General
Download Dynamic Applications	General
Department for Disarmament Affairs	General
Dattner Dispoto and Associates	General
Digital Differential Analyser	General
Direct Debit Authorization	General
Direct Device Assignment	General
Direct Deposit Advice	General
Dynamic Data Authentication	General
Data Dependent Acquisition	General
Domain Defined Attribute	General
Ding Dongs Anonymous	General
Deaf Dog Advocate	General
Discrete Device Assignment	General
Dynamic Difficulty Adjustment	General
Dual Disorders Anonymous	General
Direct Deposit Account	General
Design Distinction Awards	General
Detroit Diesel Allison	General
Direct Drive Axle	General
Daf Driver Academy	General
Defensive Driving Academy	General
Drowsy Driver Alert	General
Driver Drowsiness Alert	General
Designated Drivers Association	General
Designated Driver Alternative	General
Dual Diagnosis Anonymous	General
Directory Distributing Associates	General
Delaware Department of Agriculture	General
Digestive Disorders Associates	General
Demand Driven Acquisitions	General
Dansk Data Arkiv	General
Direct Debit Authority	Governmental
Death with Dignity Act	Governmental
Developmental Disabilities Administration	Governmental
Don't Defy America	Governmental
Deputy District Attorney	Governmental
Division of Drug Analysis	Governmental
Disability Discrimination Act	Governmental
Downtown Development Authority	Governmental
DURAUNDHA JN	Indian Railway Station
Dutch Direct Auction	International
Digital Display Advertising	Internet
Dangerous Drug Act	Medical
Depressed Drug Addict	Medical
Dispensing Doctors' Association	Medical
Dangerous Drug Act (U.K.)	Medical
Dangerous Drugs Act	Medical
Descriptive Data Analysis	Medical
dideoxyadenosine	Medical
Digital Differential Analysis	Medical
Disability Discrimination Act 1995	Medical
DNA dependent ATPase	Medical
Developmental Disabilities Agencies	Medical
Department of Drug Administration	Medical
Deputy Director for Administration	Military and Defence
Designated Development Activity	Military and Defence
Division Design Analysis	Military and Defence
Digital Directional Antenna	Radio Science
Data Driven Application	Softwares
Document (interface Control Document) Departure Authorization	Space Science
Data Delivery Acknowledgement	Space Science