1a Stages Of Life Cycle Flashcards Preview

ICT A Level > 1a Stages Of Life Cycle > Flashcards

Flashcards in 1a Stages Of Life Cycle Deck (4):
1

Describe the following stages of the systems life cycle. (i) Investigation and analysis(2 marks)

Max two from:
 establishes the nature of the problem (1) by collecting
evidence for analysis (1)
 reviews current solution/studies existing model (1) so
that user requirements can be established (1)  analyses data from

2

Describe the Design stage (2 marks)

Follow a set of objectives (1) that matches the user’s requirements (1)
 considers methods of data capture (1) and how data
will be input, processed and stored (1)
 describes data structures to be used (1) and how
these relate to the processing required/queries
required/reports required/required output (1)
 user interface/planning of screens is considered (1)
detailing how validation will be used (1)
 describes error messages (1) and required feedback
to/from the user (1)
 test plan designed (1) for use in the testing of the
entire system (1)
 provides a detailed description (1) showing how the
new system will be constructed (1)
 identification of position in systems life cycle (Max 1).
[2]

3

Describe the analysis and testing stages of the systems life cycle. (4 marks)

1 for identification, 1 for expansion / example: 4
the analysis stage concludes with a set of requirements (1) the analysis determines what needs to be done (1) analysis involves questionnaires/interviews/document analysis/observation (1) of current system (1)

the finished system is tested against the requirements specification (1) the testing determines whether what has been done works or not (1)
testing is to find bugs/errors (1) using normal/extreme/erroneous data/following a test plan (1) analysis is the first stage/comes before design (1)

4

Describe the implementation and installation stages of the systems life cycle. (4 marks)

Accept for one mark: identification of position in systems life cycle one time
Implementation
eg:
 it uses the design specification/output from the design stage (1) and
takes it forward/puts it into practice (1)
 it is when the coding would be created (1) for the required inputs,
processing and required outputs (1)
 it is when off-the-shelf software is customised (1) dependent upon the
needs of the client (1)
 creates working software (1) that can be tested (1).
One from:\
Installation
eg:
 placing of finished project into use (1) parallel/phased/pilot/direct
strategy used (1)
 presents opportunity for staff training (1) using completed and tested
software code (1).
 Data transfer (1) where data keyed into new system (1)

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