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what is meant by data dictionarythe data dictionary is an organized listing of all data constituents that are related to the system with precise
define behavioural modellingthe state transition diagram shows the characteristics of a system by depicting its states and the events that cause the
what is meant by information flow continuitywhen we refine a fundamental model for a system the information flow continuity should be maintained ie
define data flow diagrama data flow diagram is a graphical description that depicts information flow amp the transforms that are applied as data move
state entity and relationship diagram erd depicts linkage between data objectsthe erd is the notation that is used to execute the data modelling
define cardinality amp modality cardinality specification of the number of occurrences of one that can be correlated to number of occurrences of
define data objects attributes amp relationship data object representation of any collective information that must be understood by software it
define traceabilitytraceability is the overall property of requirements specification which reflects the easiness of finding related
what are the principle stages of vord methodviewpoint identification identify the services provided to each point of viewviewpoint structuring
define requirement engineeringrequirement engineering is a process in which all of the activities required to maintain and create a system
write down the src for add a node function add nodedescription adds a node to an existing designinputs node type design identifier node
mention some of the notations for requirements specificationstructured natural language use standard templates or formdesign description language
write down the functional requirement for a library management systemthe user should capable to search either all of the primary set of databases or
what are the types of software system requirementsfunctional requirements services the system should be requirednon-functional requirements
what is meant by system requirementsplace the system services and constraints in detailserves as a link between the system purchaser amp the system
define verification ampvalidationverification the set of actions that make sure software correctly implements a particular functionvalidation the set
what are the different architectures developed during bpedata architecture agraveframework for the information needs of a businessapplication
state the system engineering hierarchythe world view is made up of a set of domains diwhich can either be a system or a system of systemswv
define system modellingdefine the processes that provide the needs of the view under consideration shows the behaviour of the processes and the
define software lifecyclesoftware lifecycle is the time period beginning with the idea for a software product ending whenever the software is
mention some of the drawbacks of rad modelunuseful for a large-scale projectsinterest of developers amp customers are necessarynot useful and perfect
list out the activities of linear sequential modelsoftware requirement analysis determines the nature of the problem function information domain
what are the phases of problem solving loop problem definition identifies the problem to be resolvedtechnical development helps to resolve the
what are the characteristics of softwaresoftware is engineered or modified it is not manufactured in the traditional sensesoftware is free of wear
what is meant by software engineeringthe application of a disciplined systematic quantifiable approach to the development maintenance amp operation