cvs/02/assignment2.tex

%Assignment is conducted in pairs. Max. 8 pages.
\documentclass[12pt, a4paper]{article}
\usepackage[latin1]{inputenc}

\begin{document}
  \pagenumbering{roman}
  \thispagestyle{empty}
  \begin{centering}
    Assignment 1 - PAC003: Software Metrics, 5p\\
    Jonas Petersson \& Mathias Börjeson\\
    \emph{jopd01@student.bth.se \& tb00mbo@student.bth.se}\\
  \end{centering}
  \tableofcontents
  \newpage
  \pagenumbering{arabic}
  \section{Internal product attributes}
    \subsection{Explain how the three aspects of the software size (Length,
    Functionality and Complexity) are supplementing each other to describe
    the notion of software size.}
        %length        = is a physical size of the product
        %functionality = counts the functions supplied by the product
        %complexity    = measures the complexity od underlying problem, or a solution
%utan att ha en aning om hur notationen ser ut drar jag till med följande
        These three supplements each other adding references to
        each other. None of these is useful by itself, but by
        adding them up one can get a better perspective of the
        size of the software. The length itself don't tell
        anything of how large the completed software will be, but
        together with functions and complexity one can understand
        the size of the software. Once the size of the software is
        established one may come with effort estimations, and
        based on those make a budget for what resources the
        project will need. Given these three it is possible to get
        an idea of how productive a programmer is during a time
        unit. It will not be a perfect answer, but it will be
        something that could be used to measure deviations in work
        etc.
    \subsection{Give an example where code length measure can be useful and an
    example where source code length measure is not useful.}
        Code length is useful if it is not going to be used by
        itself. One example of this could be if we are interested
        in how much work is done in a week. Then we could look at
        loc, and also take into account the complexity and the functions provided
        (like loc * complexity / functions or something similar).
        Then loc could be useful.

        Code length is useless if it is used by itself. For
        example the statement I am a good programmer since I
        produce more then n loc per week useless.
    \subsection{Explain what are the main ideas behind Albrecht's Function Points.
    Discuss advantages and disadvantages of the measure. Motivate.}
        The main idea behind FP's are to provide  language
        independent metric that can be used no matter what
        language are used. Albrech thought it was wrong that the
        only way to tell effort and cost per effort until he begun
        was in loc. A often used metric to tell productivity was
        cost/loc, and that don't tell anything since different
        languages require different number of loc's to solve the
        same problem. This cost could be lover if the language
        requires a lot of code, but the end cost could still get
        higher if the program takes longer time to complete.
        The main idea behind FP's is to give ways to
        tell cost and productivity in a way that is language
        independent. FP's does satisfy this idea. A easier
        language will get a lower cost/FP and a greater number of
        FP's/person\&month then a more complex language.

        The great advantage with this method is that it is (almost) truly
        language independent, while a disadvantage would be that
        if this is established in the beginning of a project and
        should be used to choose a appropriate language to use, if
        the language is unfamiliar, then these metrics can't be
        computed (like FP's/person\&month). Also this way of presenting
        the result does not take into account training and
        inexperience while showing the result. Also this should
        not be used to compare different projects or groups to se
        the difference between them since this does not take
        everything into account. Also one might be tempted to
        always use the language with the highest productivity,
        this is good in most cases, but sometimes there are other
        factors to sum in, like speed, security etc.
    \subsection{Describe structural measures presented by Fenton. (Control flow
    structure, Data flow structure, Data structure). Give an example
    where you explain how one could use the structural measures
    (specify which structural measure) to ensure the quality of the
    software product.}
        svar
    \subsection{Draw the flow graph for the program, which
    based on the data provided by everyday measurements of the air
    temperature will calculate the maximum, minimum and the most
    commonly occurred temperature (the temperature that occurs twice
    or more) for a given month. Present program paths that has to be
    executed in order to satisfy the following testing strategies:}
        \subsubsection{Statement coverage}
            svar
        \subsubsection{Branch coverage}
            svar
        \subsubsection{Visit each loop}
            svar
    \subsection{Calculate the cyclomatic complexity of your program. What does
    this figure tell you?}
        svar
  \section{OO metrics}
  \textbf{Measuring the use cases}
    \subsection{Measure the use case specifications shown in Design 1 using the
    chosen use case metrics suite from the lecture}
        svar
    \subsection{Measure the use case specifications shown in Design 2 using the
    chosen use case metrics suite from the lecture}
        svar
    \subsection{Write a short section (up to ½ page) with answers to the following
    questions:}
        \subsubsection{Which of the two systems presented can be expected to be
             more complex and why?}
                svar
        \subsubsection{Which of the two systems can be expected to require more
            effort to be built? Why?}
                svar
  \textbf{Measuring designs}
  \subsection{Measure the class diagram presented in Design 1 using the CK metrics suite presented on the
    lecture.}
          svar
    \subsection{Measure the class diagram presented in Design 2 using
    the CK metrics suite presented on the lecture.}
          svar
    \subsection{Measure the code in the files .java from Design 1 with the CK metrics suite
    presented on the lecture.}
          svar
    \subsection{ Measure the code in the files .java
    from Design 2 with the CK metrics suite presented on the lecture.}
          svar
    \subsection{Write a short section (up to ½ page) with answers to the following
    questions:}
        \subsubsection{Which of the metrics could not be computed based on the class
        diagrams? Why?}
            svar
        \subsubsection{Which of the two systems is more complex? Why?}
            svar
        \subsubsection{Which method of gathering metrics - from UML designs or source
        code - is less time consuming?}
            svar
  \section{External product attributes}
    \subsection{Describe how the external product attributes differ from the
    internal ones. Describe the connection between external and
    internal product attributes.}
          svar
    \subsection{Assume that you are
    working at the company that mainly specializes on developing of
    web-based applications. Your manager gives you an assignment to
    develop a software quality model for the company. The model should
    show external quality attributes, corresponding internal
    attributes and metrics. Present the assumptions that you will use
    while creating of the quality model. Provide an explanatory text
    for your model.}
        max 8 sidor
\end{document}
1	jontas	1.1	%Assignment is conducted in pairs. Max. 8 pages.
2			\documentclass[12pt, a4paper]{article}
3			\usepackage[latin1]{inputenc}
4
5			\begin{document}
6			\pagenumbering{roman}
7			\thispagestyle{empty}
8			\begin{centering}
9			Assignment 1 - PAC003: Software Metrics, 5p\\
10			Jonas Petersson \& Mathias Börjeson\\
11			\emph{jopd01@student.bth.se \& tb00mbo@student.bth.se}\\
12			\end{centering}
13			\tableofcontents
14			\newpage
15			\pagenumbering{arabic}
16			\section{Internal product attributes}
17			\subsection{Explain how the three aspects of the software size (Length,
18			Functionality and Complexity) are supplementing each other to describe
19			the notion of software size.}
20			%length = is a physical size of the product
21			%functionality = counts the functions supplied by the product
22			%complexity = measures the complexity od underlying problem, or a solution
23			%utan att ha en aning om hur notationen ser ut drar jag till med följande
24			These three supplements each other adding references to
25			each other. None of these is useful by itself, but by
26			adding them up one can get a better perspective of the
27	jontas	1.2	size of the software. The length itself don't tell
28			anything of how large the completed software will be, but
29			together with functions and complexity one can understand
30			the size of the software. Once the size of the software is
31			established one may come with effort estimations, and
32			based on those make a budget for what resources the
33			project will need. Given these three it is possible to get
34			an idea of how productive a programmer is during a time
35			unit. It will not be a perfect answer, but it will be
36			something that could be used to measure deviations in work
37			etc.
38	jontas	1.1	\subsection{Give an example where code length measure can be useful and an
39			example where source code length measure is not useful.}
40	jontas	1.2	Code length is useful if it is not going to be used by
41			itself. One example of this could be if we are interested
42			in how much work is done in a week. Then we could look at
43			loc, and also take into account the complexity and the functions provided
44			(like loc * complexity / functions or something similar).
45			Then loc could be useful.
46
47			Code length is useless if it is used by itself. For
48			example the statement I am a good programmer since I
49			produce more then n loc per week useless.
50	jontas	1.1	\subsection{Explain what are the main ideas behind Albrecht's Function Points.
51			Discuss advantages and disadvantages of the measure. Motivate.}
52	jontas	1.2	The main idea behind FP's are to provide language
53			independent metric that can be used no matter what
54			language are used. Albrech thought it was wrong that the
55			only way to tell effort and cost per effort until he begun
56			was in loc. A often used metric to tell productivity was
57			cost/loc, and that don't tell anything since different
58			languages require different number of loc's to solve the
59			same problem. This cost could be lover if the language
60			requires a lot of code, but the end cost could still get
61			higher if the program takes longer time to complete.
62			The main idea behind FP's is to give ways to
63			tell cost and productivity in a way that is language
64			independent. FP's does satisfy this idea. A easier
65			language will get a lower cost/FP and a greater number of
66			FP's/person\&month then a more complex language.
67
68			The great advantage with this method is that it is (almost) truly
69			language independent, while a disadvantage would be that
70			if this is established in the beginning of a project and
71			should be used to choose a appropriate language to use, if
72			the language is unfamiliar, then these metrics can't be
73			computed (like FP's/person\&month). Also this way of presenting
74			the result does not take into account training and
75			inexperience while showing the result. Also this should
76			not be used to compare different projects or groups to se
77			the difference between them since this does not take
78			everything into account. Also one might be tempted to
79			always use the language with the highest productivity,
80			this is good in most cases, but sometimes there are other
81			factors to sum in, like speed, security etc.
82	jontas	1.1	\subsection{Describe structural measures presented by Fenton. (Control flow
83			structure, Data flow structure, Data structure). Give an example
84			where you explain how one could use the structural measures
85			(specify which structural measure) to ensure the quality of the
86			software product.}
87			svar
88			\subsection{Draw the flow graph for the program, which
89			based on the data provided by everyday measurements of the air
90			temperature will calculate the maximum, minimum and the most
91			commonly occurred temperature (the temperature that occurs twice
92			or more) for a given month. Present program paths that has to be
93			executed in order to satisfy the following testing strategies:}
94			\subsubsection{Statement coverage}
95			svar
96			\subsubsection{Branch coverage}
97			svar
98			\subsubsection{Visit each loop}
99			svar
100			\subsection{Calculate the cyclomatic complexity of your program. What does
101			this figure tell you?}
102			svar
103			\section{OO metrics}
104			\textbf{Measuring the use cases}
105			\subsection{Measure the use case specifications shown in Design 1 using the
106			chosen use case metrics suite from the lecture}
107			svar
108			\subsection{Measure the use case specifications shown in Design 2 using the
109			chosen use case metrics suite from the lecture}
110			svar
111			\subsection{Write a short section (up to ½ page) with answers to the following
112			questions:}
113			\subsubsection{Which of the two systems presented can be expected to be
114			more complex and why?}
115			svar
116			\subsubsection{Which of the two systems can be expected to require more
117			effort to be built? Why?}
118			svar
119			\textbf{Measuring designs}
120			\subsection{Measure the class diagram presented in Design 1 using the CK metrics suite presented on the
121			lecture.}
122			svar
123			\subsection{Measure the class diagram presented in Design 2 using
124			the CK metrics suite presented on the lecture.}
125			svar
126			\subsection{Measure the code in the files .java from Design 1 with the CK metrics suite
127			presented on the lecture.}
128			svar
129			\subsection{ Measure the code in the files .java
130			from Design 2 with the CK metrics suite presented on the lecture.}
131			svar
132			\subsection{Write a short section (up to ½ page) with answers to the following
133			questions:}
134			\subsubsection{Which of the metrics could not be computed based on the class
135			diagrams? Why?}
136			svar
137			\subsubsection{Which of the two systems is more complex? Why?}
138			svar
139			\subsubsection{Which method of gathering metrics - from UML designs or source
140			code - is less time consuming?}
141			svar
142			\section{External product attributes}
143			\subsection{Describe how the external product attributes differ from the
144			internal ones. Describe the connection between external and
145			internal product attributes.}
146			svar
147			\subsection{Assume that you are
148			working at the company that mainly specializes on developing of
149			web-based applications. Your manager gives you an assignment to
150			develop a software quality model for the company. The model should
151			show external quality attributes, corresponding internal
152			attributes and metrics. Present the assumptions that you will use
153			while creating of the quality model. Provide an explanatory text
154			for your model.}
155			max 8 sidor
156			\end{document}