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define the factors of prime concern for system modelingfollowing four factors are of prime concern for system modeling1 system modeling is undertaken
what are the rules for making dfd the below factors must be considered when making dfds 1 keep a note of all processes and
name the techniques used in behavioural modelin conventional approach of modeling analyst collects great deal of comparatively unstructured data
illustrate about the behavioural modelbehavioural model definesdata of proposed systemi the internal functioning of proposed system ii
define the behavioural modelit defines operational behaviour of the system in this model numerous operations of the system are represented in
what are the tools of environmental model i statement of purpose it indicates basic objectives of systemii event list it describes
state about the elementary modeling techniques a model illustrating bare minimum requirements is known as essential model it has two componentsa
what are the tools are mainly used for information gathering1 record review a review of recorded documents of organisation is performedmanuals
define the process of requirements gathering tools requirements gathering is an art person who gathers requirements must have knowledge of what and
what are the problems in comes in srs there are numerous features which make requirements analysis difficult these are explained below1 complete
define the concept of srsan srs clearly defines following bull external interfaces of the system they identify information which is to flow from
state about the software requirements specification this document is produced as output of requirement analysis requirement analysis involves
in how many types requirements have been classifiedrequirements are classified in the below two typesi functional requirements they define the
what are the types of requirements there are numerous categories of the requirementson the basis of their priority requirements are classified into
define the types of requirements managementrequirements management comprises the below processes1 identifying controls and tracking requirements2
what is requirements definition descriptionoutput of requirements of engineering process is requirements definition description rdd requirements
what is requirements engineering requirements engineering is systematic use of proven techniques principles and language tools for cost effective
enginnering the productbecause of complexity involved in software development engineering approach is being used in software design use of
determine the problems of software maintenancesoftware maintenance has the below problemsi it is very cumbersome to analyse and understand code
what are the advantages of software maintenancesoftware maintenance is a very broad activity which includes error correction deletion of obsolete
categories of software maintenancethere are three categories of maintenance i corrective maintenanceii adaptive maintenanceiii perfective
why software maintenance is requiresoftware maintenance is done due to the below factorsi to rectify the errors which are encountered during the
discuss about the software maintenance maintenance in the normal sense means correcting problems caused by wear and tear though software maintenance
explain the process of black box testing this is applied during the later stage of testing it enables software developer to derive a set of
state the process of white box testingwhite box testing this method also termed as glass box testing is performed early in testing process by