Requirements Elicitation

A background study is (define)

Collect, read synthesize relevant documents

interview methods (list)

IRL, phone, skype, email

stakeholder identification step 1:

Identify all relevant groups and roles

Types of questions in questionnaire

Weighing, multiple choice

this observation type involves you get involved in the task, even become a team member

active

A stakeholder is:

anyone who has a stake in the project

Articfact-driven elicitation techniques (list)

background study, questionnaires, data collection, repertory grids, storyboards, prototypes, knowledge reuse

disadvantages of group session

composition, risk of losing focus, superficial coverage

advantages of prototypes (list)

concrete flavor of how software operate, has other uses

stakeholder identification step 2:

consider relations between stakeholders

stakeholder _______ is required for successful RE

cooperation

negative scenario can be thought of as a ____________

counter-example

What is Req Elicitation?

determining the needs of stakeholders

Questionnaires are _______ for acquiring info _____, _____, and _____ from ______ people.

effective cheaply quickly remotely many

abnormal scenario is when...

everything does not proceed as expected

normal scenario is when ....

everything proceeds as expected

positive scenario can be thought of as a _________

example

observation/ethnographic studies main idea is (idea)

focus on task elicitation in system as-is

Data collection is (define)

gathering undocumented facts and figures

Purpose of card sorting:

get more info about concepts already elicited

disadvantages of interview (list)

hard to master, lot of time, difficult self-report, misunderstandings tacit knowledge

two stages of unstructured group session (list)

idea generation, idea evaluation

scenarios __________ concrete examples of ______________ interaction

illustrate real-life

stake-holder-driven elicitation techniques (list)

interviews, observation, group sessions

advantages of knowledge reuse (list)

less effort, effective for completing RD

advantages of group session

less formal interactions, wider exploration, conflict resolutions

Knowledge acquisition from stakeholders is difficult because (list reasons)

limited access, distributed sources, different backgrounds, tacit knowledge, conflicting viewpoints, politics, turnover

Questionnaire is (define)

list of questions submitted with list of answers

single interview may involve _________ ________

multiple stakeholders

advantages for scenarios (list)

narrative style, concrete, acceptance test cases,

disadvantages of prototypes (list)

not cover all aspects, misleading, bad code, inconsistencies

disadvantages of knowledge reuse (list)

only effective if domain is close, defining abstract domains for reuse hard, near-matches tricky

disadvantages for scenarios (list)

partial, combinatorial explosion, over-spec, irrelevant details

this observation type involves no interference with task performers

passive

ethnographic studies are (type of observation)

passive observation

Types of observation

passive, active

stakeholder selection based on (list factors)

position, role in decisions, domain expertise, personal interests and conflicts, influence

scenario types

positive, negative, normal, abnormal

advantages of interview (list)

possible to clarify, data rich

interviews are ________ _________ for knowledge elicitation

primary technique

prototype is (define)

quick implementation of some aspects

__________ ________ must be selected to ensure adequate coverage

representative samp

Guidelines for questionnaires (list)

representative sample, incentives, unambiguous questions, redundant questions, cross-validation

genera reuse process (list in order)

retrieve knowledge, transpose to current system, validate result, adapt if necessary, integrate system knowledge

advantages of observation/ethnographic studies

reveal tacit knowledge, contextualization of required info, focus on system as-is

group sessions are (define)

series of group workshops where elicitation takes place

disadvantages of observation/ethnographic studies

slow and expensive, hawthorne effect

function prototype focuses on _______ _____ ____

specific functional specifications

knowledge reuse idea is ... (main idea)

speed up through reuse of knowledge

Questionnaires are helpful for preparing for __________ _______

stakeholder interviews

Repertory grid is (define)

stakeholders characterizing target concept through attributes and value ranges

Card Sorting is (define)

stakeholders partition a set of concept cards

sources of requirements (list)

stakeholders, existing documents, similar systems, problems and situation, environment, previous systems, requirements checklist

In this type of group session, every member has defined role, and focused on high-level reqs

structured group session

this interview type has a predetermined set of questions

structured interview

interview types (list)

structured, unstructured

type of group sessions (list)

structured, unstructured

artifact driven elicitation is (define)

studying materials before talking to stakeholders

storyboard is (define)

tells story through sequence snapshot

mockup is a prototype that is _________ ________

thrown away

evolutionary protoype is a prototype that is __________ towards ________ _________

transformed efficient code

in this type of group session, it is more akin to brainstorming where each member has less defined role

unstructured group session

this interview type has no predetermined set of questions

unstructured interview

user interface prototype focuses on _________

usability

storyboard idea is (idea behind it)

validate info from concrete examples through narratives

when is elicitation completed (answer)

when stakeholder buys into requirements