Exam (elaborations)
System Analysis & Design exam| 193 questions and answers.
- Module
- SYSTEM ANALYSIS AND DESIGN
- Institution
- Oxford University (OX)
System Analysis & Design exam| 193 questions and answers.
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System Analysis & Design exam 193questions and answers
State 5 Primary Quantitave Elicitation Techniques - answer Questionnaires & Surverys
Document Analysis
Record Searching
Special-Purpose Records
Activity Sampling
Describe 3 Issues When Using Questionnaires - answer •Response rates are typically low, so
how representative of the population at large are those who do respond?
•Completion is encouraged if the questionnaire is not. too long and does not require too much
research by the respondents.
•Questions must be carefully constructed to make sure that people can actually answer them in
an unambiguous manner.
Describe Questionnaire Technique - answer •Sometimes, because they are geographically
widely dispersed, it is difficult or impossible to meet all of the stakeholders.
•In other cases, the business analysts want to know if what they have been told by a small
group of stakeholders is representative of the wider stakeholder population.
•In both cases. a questionnaire can prove invaluable, either a traditional paper-based one or
increasingly, one conducted online.
,What Is Document Analysis? - answer This involves taking a source document. or perhaps a
screen on an existing computer system, and dissecting and recording the information it
contains.
What Should You Consider When You Are Using Document Analysis? - answer •What is the
purpose of the document?
•Who completes the document. and when?
•Who has access to the document and why?
•What information is contained in the document?
•How long is the information retained?
What Is Record Searching ? - answer Trawling through files of records.
It can reveal useful quantitative data
Describe 3 Examples Of Quantitave Data Outputted Through Record Searching - answer •How
many invoices are produced in a month?
•Is there a peak at any time during the month?
•Coupled with document analysis, this technique provides useful volumetric information that
can be input into, for example, database design.
Why Are Special-Purpose Records Useful? - answer Sometimes, it is useful to know how people
spend their time so that the solution improvement effort can be directed to the most significant
tasks.
How Do You Obtain Special-Purpose Records? - answer Ask people to complete a simple form
whereby they record each time they perform a certain transaction, like setting up a new
customer account or raising an invoice.
What Is A Disadvantage Of Special-Purpose Records? - answer The information gained this way
must be treated with some caution, as most likely the people filling in the forms are busy and
may forget or, less commonly, may inflate the figures to make a point.
,What Is Activity Sampling? - answer A more accurate way of finding out how time is spent is for
the business analysts to perform some form of activity sampling exercise.
Here, they take a turn around the office at pre-defined but ideally irregular intervals and note
down what each person is doing at that time.
What Are 3 Things To Consider When Using Activity Sampling - answer •A large enough time
period must be chosen to get a reliable result and managers should be consulted to make sure
that the period of the study is a reasonably typical one.
•Identifying what office workers are doing (especially when they are staring at computer
screens) is actually rather more difficult than when surveying manual workers.
•As with any form of observation, activity sampling is unnerving.
State 4 Types Of Requirements - answer Functional
Non-Functional
General
Technical
What Are Functional Requirements? - answer Functional requirements are functional features
and specifications expected by users from the proposed software product.
What Are Non-Functional Requirements? - answer These define how the solution should
operate or 'the product's qualities'. An example might be 'the result of a query must be
displayed within two seconds of the user hitting the enter key'.
, What Are General Requirements? - answer These are high-level, overarching requirements of a
business policy nature. So, for instance, the need to comply with data protection legislation
would be a general requirement, as might be company policy not to trade in certain products.
What Are Technical Requirments? - answer Technical requirements are the technical issues that
must be considered to successfully complete a project.
These are aspects such as performance, reliability, and availability that your project must meet
on in order to proceed with a project.
In software projects, technical requirements typically refer to how the software is built, for
example: which language it's programmed in, which operating system it's created for, and which
standards it must meet.
What Body Offers A Different System For Classifying Requirements? - answer The IIBA
(International Institute of Business Analysis) in its Business Analysis Body Of Knowledge (Version
2.0)
State 3 Different Requirements According To Business Analysis Body Of Knowledge (Version 2.0)
- answer Business Requirements
Stakeholder Requirements
Solution Requirements
What Are Business Requirements? - answer Business requirements described the needs of the
organisation as a whole, not groups of stakeholders within it.
They are the higher level statements of goals, objectives or needs of the enterprise.
They describe why project is to be undertaken, what objectives the project will achieve and
what metrics is to be used to measure the success of the project.
They are developed and defined through enterprise analysis.
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