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Question :

What is the difference between high level design and low level design?

Posted by: vikas on 9/29/2012

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Category QA Testing Interview Questions
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Added on 9/29/2012
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Every software design is presenting with one high level design and one low level design.Because high level design is a system level document and low level desings are functionalise and modules level documents.
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Posted by: satya

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High Level Document and Low Level Document are comes under Software Requirement Specifications(SRS).It comes under the Design phase which is in SDLC.
High Level Documents are design documents wat exactly meaning is what the customer wants this comes under HLDD.
Low Level Documents in this we have in which way client wants the application and describes about the procedures and sub routins and basic documents.
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Posted by: Chandrika.D

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Source: CoolInterview.com

High Level Document and Low Level Document are comes under Software Requirement Specifications(SRS).It comes under the Design phase which is in SDLC.
High Level Documents are design documents wat exactly meaning is what the customer wants this comes under HLDD.
Low Level Documents in this we have in which way client wants the application and describes about the procedures and sub routins and basic documents.
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Posted by: Rajan

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High Level Design (HLD) is the overall system design - covering the system architecture and database design. It describes the relation between various modules and functions of the system. data flow, flow charts and data structures are covered under HLD.
Low Level Design (LLD) is like detailing the HLD. It defines the actual logic for each and every component of the system. Class diagrams with all the methods and relation between classes comes under LLD. Programs specs are covered under LLD.

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Posted by: Gurpartap singh

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