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UAT_in_large_projects
1.
In next 3
min … Renata Čičman, Tieto Aistė Stikliūtė, Webmedia UAT WITH SALT The taste of UAT in large projects © 2011 Tieto Corporation
2.
Aistė Stikliūtė
Renata Čičman LinkedIn:http://lt.linkedin.com/in/aistestikliute LinkedIn: http://lt.linkedin.com/in/renatacicman Blog: http://luni.net84.net/ Blog: http://reci7422.projektas.in Twitter: @RenataCicman
3.
IN THE NEXT
30 MIN … COMPLAINTS FINDINGS SARCASM GOOD EXAMPLES STOLEN IDEAS ADVANTAGES OF LESSONS LEARNED OUR IDEAS © 2011 Tieto Corporation
4.
HOW TO START? Do
not wait for someone to tell You what to do Determine company culture and Collect existing processes existing systems and procedures Understand the Identify Business Case stakeholders, requirements, ri sks, constraints, assumptions © 2011 Tieto Corporation
5.
WHAT TO BE
CONSIDERED? Context in which the UAT testing is to be performed Consistency in testing across the testing teams Schedule Methods and techniques, metrics, tools Communication © 2011 Tieto Corporation
6.
BEST PRACTICES There are
good practices in context, but there are no best practices. Understand your context and then make your approach (Michael Bolton @ DevelopSense, http://www.developsense.com/presentations/ User%20Acceptance%20Testing%20- %20STAR%20East%202006.pdf) © 2011 Tieto Corporation
7.
ENVIRONMENT – Human resources POSSIBLE
ON TIME? How to make environment come on time: • Rehearsals • Set up the environment in advance • Pre-test the environment • Good configuration management is the key! © 2011 Tieto Corporation
8.
CASE STUDY 2 environments
with different versions of the system • Same test data (periodic loads from production) • Same schedule • No other systems integrated, no other teams involved © 2011 Tieto Corporation
9.
HOW MANY / Human
resources WHAT METRICS TO USE Per team / area: • Percentage of test cases executed • Defects found (per priority/severity) • Defects found (per root cause) •… © 2011 Tieto Corporation
10.
HOW MANY / WHAT
METRICS TO USE How many: depends on what decisions you’ll want to make No ambiguities! Performance metrics? Probably not, but... © 2011 Tieto Corporation
11.
CASE STUDY (2
METRICS) © 2011 Tieto Corporation
12.
CASE STUDY (MANY
METRICS) © 2011 Tieto Corporation
13.
TEST CASES: WHO
SHOULD DEFINE? • Customer knows what’s important to him • Vendor knows how to use the system • Solution: • customer gives guidelines • vendor writes test cases • customer can add test cases © 2011 Tieto Corporation
14.
HOW TO SELECT
WHAT TO TEST? Critical success Typical factors??? scenarios High risk scenarios Business benefits??? Existing requirement documentation © 2011 Tieto Corporation
15.
TRAININGS FOR UAT TEST
ANALYSTS • Purpose of UAT • Ownership of the testing • Rely on "End-User" documentation • Use of the Testing Tool/Repository • Activities involved © 2011 Tieto Corporation
16.
SUPPORT FOR UAT TEST
ANALYSTS • Inexperienced Testers • Compliance Issues • Poor Release Control • Unstable Test environment • Poor Planning • Incomplete Test Scripts • ... © 2011 Tieto Corporation
17.
BUSINESS SUPPORT FOR TEST
ANALYSTS • Gaps in requirements • 3rd parties performing acceptance testing © 2011 Tieto Corporation
18.
‘PILOT’ – THE
WAY TO PREVENT FAILURE • Is our UAT strategy working? • Are our trainings effective? • Gaps in testing scripts? In requirements?! • Should we use UAT environment for ‘Pilot’? • Should testing results from ‘Pilot’ be considered as part of UAT? © 2011 Tieto Corporation
19.
PHASES FOR UAT?
ITER. WTF. How to split: • By functionality to be rolled-out first • By resources availability When to split: • Time frame is long enough • By diversity of activities What ever approach you choose it must be thoroughly planned in advance © 2011 Tieto Corporation
20.
CASE STUDY From staged
UAT1 UAT2 UAT3 Reh. Go-Live to continuous UAT2 cont. Defects retesting UAT1 cont. No env. UAT3 cont. © 2011 Tieto Corporation
21.
COMMUNICATION • How to
communicate with UAT test analysts? • How to communicate progress? • What channels should be used? © 2011 Tieto Corporation
22.
DEFECTS TRACKING •
There shouldn’t be many new defects during UAT. • But they need special attention. © 2011 Tieto Corporation
23.
DEFECT ANALYSIS Why we
find defects in UAT still? • Business-knowledge related defects, like missed requirements • Technical issues because of newly setup environment • Defects were missed in functional testing © 2011 Tieto Corporation
24.
POSTPONING FIXES ACCEPTABLE OR
NOT? • Should UAT defects be of higher priority by default? • When should UAT defects be closed? © 2011 Tieto Corporation
25.
CASE STUDY
Why these bugs are found only now???! Why are you testing things Why TC that I tested 5 times that are not in TC ??? now suddenly FAILS?! © 2011 Tieto Corporation
26.
CHALLENGES • Environmental
(technical) issues • Scope control • Business users engagement • Plan changes © 2011 Tieto Corporation
27.
ENVIRONMENTAL (TECHNICAL) PROBLEMS • super-fast
communicating and escalating • Rescheduling • planning pre-prod or prod tests • postponing UAT • releasing without testing in UAT © 2011 Tieto Corporation
28.
SCOPE CONTROL • Keep
scope unchanged as much as possible • Apply bureaucratic view for any potential changes • Testing scope can be reduced but more often vice versa © 2011 Tieto Corporation
29.
SCOPE TENDS TO
GROW… © 2011 Tieto Corporation
30.
CASE STUDY Scope change
during UAT preparation © 2011 Tieto Corporation
31.
CASE STUDY Scope change
during UAT execution © 2011 Tieto Corporation
32.
BUSINESS ENGAGEMENT Need whipped
cream or a whip? :) Vs. © 2011 Tieto Corporation
33.
BUSINESS ENGAGEMENT UAT timeframe
vs. UAT scope vs. business availability © 2011 Tieto Corporation
34.
SIGN-OFF • Sign-off
time causes sudden diligence :) • The key: sign-off strategy confirmed in advance © 2011 Tieto Corporation
35.
CONDITIONAL SIGN-OFF •
Reduces the number of sign-off iterations • Planning the follow-up: - Due date - Resources for verification © 2011 Tieto Corporation
36.
YOUR QUESTIONS?
Aistė Stikliūtė Renata Čičman LinkedIn:http://lt.linkedin.com/in/aistestikliute LinkedIn: http://lt.linkedin.com/in/renatacicman Blog: http://luni.net84.net/ Blog: http://reci7422.projektas.in Twitter: @RenataCicman © 2011 Tieto Corporation