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produce more then n loc per week useless. |
produce more then n loc per week useless. |
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\subsection{Explain what are the main ideas behind Albrecht's Function Points. |
\subsection{Explain what are the main ideas behind Albrecht's Function Points. |
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Discuss advantages and disadvantages of the measure. Motivate.} |
Discuss advantages and disadvantages of the measure. Motivate.} |
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|
%denna var bra http://www.spr.com/products/function.htm |
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The main idea behind FP's are to provide language |
The main idea behind FP's are to provide language |
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independent metric that can be used no matter what |
independent metric that can be used no matter what |
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language are used. Albrech thought it was wrong that the |
language are used. Albrech thought it was wrong that the |
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where you explain how one could use the structural measures |
where you explain how one could use the structural measures |
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(specify which structural measure) to ensure the quality of the |
(specify which structural measure) to ensure the quality of the |
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software product.} |
software product.} |
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svar |
%http://sern.ucalgary.ca/~kliewerc/SENG/623/summaries.htm#sum02 var lite halvbra... det bästa jag kunde hitta dock, + F4... |
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Control flow is a diagram with nodes, connected via the |
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directed connections showing the possible routs the |
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program (or actually the flow of data in the program) may |
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take. This could be broken down to several diagrams if it |
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gets to large and complex. This diagram can be used to |
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decide how many test cases is needed to test the program |
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completely. |
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|
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The data flow structure could be shown in a module-call |
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graph. The module-call graph shows what modules calls what |
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other modules, and thereby showing more the flow of |
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information within the program. This may also be used to |
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show coupling and cohesion in the program. |
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|
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The data structure can be measured both locally and |
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globally. Locally it is interesting how much data |
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structure each data item has, and globally it is the |
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amount of data for the system. For the local data |
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structures very little research has been done, but for the |
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global there are more. |
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\subsection{Draw the flow graph for the program, which |
\subsection{Draw the flow graph for the program, which |
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based on the data provided by everyday measurements of the air |
based on the data provided by everyday measurements of the air |
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temperature will calculate the maximum, minimum and the most |
temperature will calculate the maximum, minimum and the most |
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commonly occurred temperature (the temperature that occurs twice |
commonly occurred temperature (the temperature that occurs twice |
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or more) for a given month. Present program paths that has to be |
or more) for a given month. Present program paths that has to be |
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executed in order to satisfy the following testing strategies:} |
executed in order to satisfy the following testing strategies:} |
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|
See appendix a for the diagram. |
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\subsubsection{Statement coverage} |
\subsubsection{Statement coverage} |
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svar |
a-b-c-d-e-f-g-h-i-j-k-l-m-n |
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\subsubsection{Branch coverage} |
\subsubsection{Branch coverage} |
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svar |
a-b-c-d-e-f-g-h-i-j-k-l-m-n \\ |
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|
a-b-c-b-c-d-e-g-i-j-k-m-n \\ |
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|
a-b-c-d-e-f-g-h-i-j-k-l-m-k-m-n \\ |
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\subsubsection{Visit each loop} |
\subsubsection{Visit each loop} |
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svar |
%osäker på om detta är rätt...jag har bara antagit att man skall göra ett test så att man kör alla looparna |
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|
a-b-c-b-c-d-e-f-g-e-f-g-h-i-g-h-i-j-k-l-m-k-m-n |
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\subsection{Calculate the cyclomatic complexity of your program. What does |
\subsection{Calculate the cyclomatic complexity of your program. What does |
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this figure tell you?} |
this figure tell you?} |
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svar |
%Cyclomatic complexity (CC) = E - N + p |
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%where E = the number of edges of the graph |
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%N = the number of nodes of the graph |
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%p = the number of connected components |
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%http://www.sei.cmu.edu/str/descriptions/cyclomatic.html |
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Hopefully you mean McCabe's cyclomatic complexity\\ |
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% e = no of arcs | n = no of nodes |
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e-n+2 | 18 - 14 + 2 = 18 - 16 = 2 \\ %men vad säger nu detta |
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This tells us the number of tests we have to do to cover |
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each path in the program. It could also be used to give a |
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estimation of how complex the final software will be. If |
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higher then 20 it should be seen as a high risk project, |
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and if higher then 50 as a very high risk project. %nuffrorna kommer från http://www.sei.cmu.edu/str/descriptions/cyclomatic.html |
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\section{OO metrics} |
\section{OO metrics} |
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\textbf{Measuring the use cases} |
\textbf{Measuring the use cases} |
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|
%vi skall använda templaten, och bifoga denna... |
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\subsection{Measure the use case specifications shown in Design 1 using the |
\subsection{Measure the use case specifications shown in Design 1 using the |
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chosen use case metrics suite from the lecture} |
chosen use case metrics suite from the lecture} |
145 |
svar |
svar |
181 |
\subsection{Describe how the external product attributes differ from the |
\subsection{Describe how the external product attributes differ from the |
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internal ones. Describe the connection between external and |
internal ones. Describe the connection between external and |
183 |
internal product attributes.} |
internal product attributes.} |
184 |
svar |
The internal attributes can be measured from within the |
185 |
\subsection{Assume that you are |
system (like loc etc) while for the external attributes |
186 |
working at the company that mainly specializes on developing of |
one must look at the finished product to se the external |
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web-based applications. Your manager gives you an assignment to |
attributes. Also in general internal attributes are |
188 |
develop a software quality model for the company. The model should |
considered easier to measure (and then predict) then the |
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show external quality attributes, corresponding internal |
external attributes. |
190 |
attributes and metrics. Present the assumptions that you will use |
|
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while creating of the quality model. Provide an explanatory text |
This is partly since the internal attributes can be |
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measured more ``directly'' then the external. For |
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instance loc is easy to count while usability is a lot |
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harder to measure. For the internal attributes one can |
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expect to be able to get absolute values while on the |
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external attributes one can expect them to be less |
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accurate. |
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|
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However several of the internal attributes (if not all) |
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does affect the external attributes in a way that can |
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(in most cases) be predicted. One can for instance say |
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that in a specific solution if the loc is increased |
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(both with comments) then one could expect to get a |
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higher maintainability. Also most of the external |
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attributes can be affected via the internal if the |
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developers keep the external attributes in mind. |
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|
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In most cases (if not always) the customer of the product |
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is more interested in the external attributes. Does this |
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mean that the external attributes are of ``greater'' |
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value to the team developing the product? |
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|
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Not always but in many cases. Also one should keep in |
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mind that just because the external attributes are more |
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important that the internal could be forgotten. |
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%\subsection{Assume that you are working at the company that |
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%mainly specializes on developing of web-based applications. |
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%Your manager gives you an assignment to develop a software |
219 |
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%quality model for the company. The model should show external |
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%quality attributes, corresponding internal attributes and |
221 |
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%metrics. Present the assumptions that you will use while |
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%creating of the quality model. Provide an explanatory text |
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%for your model.} %Jag tyckte inte om att läsa den texten;) |
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\subsection{Assume that you are working at a company that |
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mainly specializes in development of web-based applications. |
226 |
|
Your manager gives you an assignment to develop a software |
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quality model for the company. The model should show external |
228 |
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quality attributes, corresponding internal attributes and |
229 |
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metrics. Present the assumptions that you will use while |
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creating the quality model. Provide an explanatory text |
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for your model.} |
for your model.} |
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max 8 sidor |
%huh? - jag kollar på denna... men vill du ha den så;) |
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max 8 sidor (totalt; inte på denna;) |
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\end{document} |
\end{document} |