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Requirements Decision Making through Architecturally Significant Requirements

Architecturally Significant Requirements

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Requirements	Decision	Making	through	
Architecturally	Significant	Requirements	
Feng Chen
Mo9va9on		
• Inadequate requirements prac5ce 
Ø steers research towards improving Requirements Engineering
(RE).
• The changing RE environment, specifically in enterprise soCware
development
Ø brings the focus to architecture in RE.
Manage requirements through architectures → ASRs as a sweet spot.
Ø Recogni5on of RE as a decision making process
It becomes an appropriate way of viewing contemporary RE.
2
Research	Ques9ons	
RQ 1. How are requirements decisions made in enterprise

soCware development?

RQ 2. What are the requirements challenges and issues facing

prac55oners as well as opportuni5es for improvement?

RQ 3. How to iden5fy architecturally significant requirements?

RQ 4. How to use findings from the previous ques5ons to

improve requirements decision making?

3
Research	Design	
Understanding	the	requirements	
challenges,	issues	and	
opportuni9es	
RQ1	
RQ2	
RQ3	
RQ4	
Research	Ques9ons	 Objec9ves	 Research	Methods	
Discovering	the	knowledge	for	
iden9fying	ASRs	
Improving	requirements	decision	
making	through	ASRs	
Survey	
Grounded	theory	
Valida9ng	the	results	
Literature	review	+	
Experts	interview	
Understanding	the	requirements	
decision	making	context	
Par9cipant	
observa9on	
4	
Revised	from	Figure	3-2,	
page	64	from	the	thesis.
Studied Environment
5	
•  Avaya Inc. – an interna5onal telecommunica5on company
•  Embedded as an employee for 12 months in total
•  IT department – over 800 employees
•  Had access to all the IT project documenta5on including
documenta5on from the R&D projects
•  Par5cipated in many IT project mee5ngs
•  Worked closely with two solu5on architects and a group of
business analysts as part of this research
Studies	
RQ1	
RQ2	
RQ3	
Research	Ques9ons	 Research	Methods	
Survey	
Grounded	theory	
Literature	review	+	
Experts	interview	
Par9cipant	
observa9on	
Study	details	
In-vivo	observa9ons,	three	case	stories,	data	from	
prac99oners,	requirements-related	documents			
Feedback	from	8	BAs,	7	technical	leads,	2	QAs	
Interviewed	10	experts	from	10	different	
organiza9ons	with	187	years’	experience	in	total	
Observed	7	ARB	mee9ngs,	analysed	22	ARB	
presenta9on	files,	interviewed	5	architects	with	75	
years’	experience	in	total		
6	
valida9on

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Requirements Decision Making through Architecturally Significant Requirements