Techniques of Test Estimation:
In this section we will discuss about the Testing Effort
estimation. How we can estimate the effort using test estimation techniques..
We can understand easily with following live example:
i.
Following exercise will help us to find
out the estimate effort and time required to test all functionalities like –
first test Login Functionality, Now test seat available functionality, now test
reservation functionality, and fax functionality etc.
ii.
As a result login functionality can be tested
in 1 to 1.50 hours. Same like this need to list all work and related efforts
with estimated timing.
iii.
Just pause the training lecture and first
complete the required exercise. We can hope, you will sensible guess for the required
effort.
iv.
This technique is called Bottom – up
strategy of Test Estimation Efforts. This technique is based on lowest level of
task and achieves the highest level. So here you can estimate the resources,
duration and dependencies of estimation task effort.
v.
Decision for Estimation efforts according
to Bottom Up strategy is not taken by the single person. This is the result of
collaborative wisdom of the all team members including (experts and experienced
staff members).
vi.
We hope on the based of your experience
with this live example, you are able to guess the intelligent estimate related
to effort required to test the website.
vii.
Now we will discuss about the top – down
approach to guess the estimation of required testing effort timing but this
will be base on experience.
viii.
Next Technique is Classify Project based
on their complexity and size and seeing in past if there is any event which is
been passed like such project.
ix.
Next Technique is evaluating the Average
Effort per test case as previously done for similar projects. Estimation
will take according to past similar project and work will be started.
x.
Estimates of Testing Effort can be
influenced by many factors like people factors, timing pressures, geographic
distribution of the test eng. Team and so on
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test estimation techniques, live example for test estimation,
bottom up strategy for test estimation, top down approach to guess the estimation
of required testing effort, classify project technique, average effort per
test case
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