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  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>Expanding Requirements Through Observation: An Experience Report</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Nina Desnica</string-name>
          <email>1desnicanina@gmail.com</email>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Gil Regev</string-name>
          <email>gil.regev@epfl.ch</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Alain Wegmann</string-name>
          <email>alain.wegmann@epfl.ch</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Ecole Polytechnique Fédérale de Lausanne (EPFL), School of Computer and Communication Sciences</institution>
          ,
          <addr-line>CH-1015 Lausanne</addr-line>
          ,
          <country country="CH">Switzerland</country>
        </aff>
      </contrib-group>
      <fpage>14</fpage>
      <lpage>24</lpage>
      <abstract>
        <p>In this paper, we describe our use of ethnographic techniques for identifying requirements for a web-based system for automatic updates and data exchange in a financial investment company. During a six-month long internship, we observed stakeholders in their daily work, helped them use the system, and discussed the results of our observations with them. This helped us to define a more complete set of requirements than if we would have used only the traditional interview and workshop techniques. We describe the observations we made, analyze the results and discuss the key learning points.</p>
      </abstract>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>Introduction</title>
      <p>
        The work described in this paper was performed as a six-month long internship at the
Multi-Asset (MA) team of a financial investment company based in Switzerland. The
project goal was to improve two processes: data exchange and updates of financial
reports. Apart from analyzing the initial requirements we decided to focus on the
social aspects of work because we wanted to fully meet the users’ needs [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ]. We
loosely applied contextual inquiry, an ethnography-based requirements elicitation
method that was taught the previous year in the Enterprise Architecture course [
        <xref ref-type="bibr" rid="ref3 ref4">3, 4</xref>
        ].
Our approach consisted of maintaining a continuous presence with the users so that
we could observe their daily work, identify the difficulties they faced and help them
solve some of the technical problems. We identified new requirements by discussing
the results of our observations with the users.
      </p>
      <p>This approach helped us to propose requirements that were a priori unknown, and
which significantly changed the scope of the project. It also brought new perspectives
to the development process used in the company. The use of ethnographic techniques
for defining requirements is not new. However, they are hardly ever used in practice
for this purpose, mainly because they are so time consuming. Based on this work, we
believe that internships can provide a good opportunity for using these techniques in
companies.</p>
      <p>This paper is organized as follows. In Section 2 we present the initial project scope.
In Section 3 we describe the observation techniques we used. In Section 4 we describe
how we carried out these techniques. In Section 5 we discuss the results of our work
on the product and on the requirements engineering process. Finally, in Section 6 we
conclude the paper.
2</p>
    </sec>
    <sec id="sec-2">
      <title>The Initial Project Scope</title>
      <p>The MA team consists of 15 people: portfolio managers and quantitative analysts. The
MA team manages equities, currencies, funds and commodities, thus structuring
collected data with the main goal of providing the best investment strategy for their
clients. One of the team’s main challenges is to gather the needed dat in order to
provide customized services to clients based on the performance. The team uses a
systematic investment methodology that is based on a set of economic indicators.
These indicators are not only used by the MA team but also by other teams within the
company, and with clients.</p>
      <p>The intern will be responsible for the implementation of macroeconomic indicators defined
by the MA investment team. These indicators will be implemented using a new database
system (non-sql database coupled with a finance-specific query system) and represented in
the team’s intranet for access to the investment specialists of the firm and selected clients
Finally, the most important part is the creation of a web-based application which has the
main purpose to enable the team members to exchange the information conveyed by the
set of indicators. Furthermore, it should improve the productivity of the whole team; make
the work easier and communication more efficient. The interface should be a user-friendly
setting and it will need to show the latest values on the firm's intranet portal. The web
portal will be a new system that should be built according to the analysis of the difficulties
that employees are facing every day. The intern should start form observing, analyzing the
problems of employees, localize and indicate the main issues and then explore and define
ways to overcome this, and finally implement the solution and shape into a web-portal that
can fulfil employee's needs and meet their expectations.</p>
      <p>Seeking to improve their operations, the MA team launched a project to design a
new web-based support system. The initial project proposal is shown in Figure 1. The
initial project scope is defined, with a brief explanation of the main goal of the
project. The project was proposed as internship to the first author of the paper who
then sought the academic support of the two other authors. These two authors, being
heavily in favor of the use of ethnographic techniques for requirements elicitation
proposed that (a) the project summary be expanded with more details about the
technical work expected from the intern; and (b) that the intern will use observation
methods to identify every-day problems faced by users. The result can be seen in
Figure 2.</p>
      <p>The use of observation (ethnographic) techniques is not mainstream in the IT
industry. We were fortunate that the MA team accepted to use these techniques,
which are often seen as overly time consuming.</p>
      <p>As can be expected from a project in such an early stage, when the intern began her
work in the MA team, there were no specific requirements. There was only a
document that explained the content that was to be displayed by the web application.
The next section describes the ethnographic methods we used to elicit more
requirements.
3</p>
    </sec>
    <sec id="sec-3">
      <title>THE ENTHNOGRAPHIC TECHNIQUES WE USED</title>
      <p>The requirements elicitation period lasted two months. It involved different activities
such as interviews, informal conversations, observing users work and helping them
solve their problems. We worked with 8 out of the 15 members of the MA team.
These eight members were five portfolio/investment managers and three quantitative
analysts. We also worked with four users from other departments who collaborated
with the MA team.</p>
      <p>All the interviews were one-on-one, face-to-face, in person conversations. We asked
questions related to the work the user does, situation he or she faces, feelings on the
specific problems and feedback on proposed ideas. The interviews usually occurred at
the user’s desk. We were always taking notes during the interviews and the users were
aware of that. Informal conversations were more relaxed conversations with users.
These conversations occurred in different locations such as the cafeteria and common
rooms. They occurred during breaks and we have never taken the notes in front of the
users. The purpose of these informal conversations was to enable sharing data in a
casual way. This would help the users to relax and share their opinions. The
observation was unstructured. It was meant to spontaneously understand the behavior
of the users at their workplace. We recorded what we saw during or after
observations. Sometimes users came to us for help, which gave us the unique
opportunity to gather more data related to concrete problems they were facing. After
these activities, we wrote down everything we could remember.</p>
      <p>Frequently we combined the different activities in order to obtain a more precise
understanding of the everyday work of users. For example, very often an observation
was followed by an interview or an informal conversation with the user. We spent a
few hours every day observing the workplace and employees. The MA team works in
an open-space office. It was therefore convenient for us to discretely observe
colleagues unnoticed.
4</p>
    </sec>
    <sec id="sec-4">
      <title>Observations</title>
      <p>In this section we describe the situations we observed. For each situation, we explain
the context, the succession of observations, the resulting requirements and some
reflections on the method.</p>
      <sec id="sec-4-1">
        <title>Observation 1: Using post-it notes on the computer screen</title>
        <p>While we were watching around the workplace we spotted the following situation:</p>
        <p>Lana, a portfolio manager, had a few post-it notes attached to her monitor. They
were fastened with scotch tape</p>
        <p>Post-it notes tend to fall-off with time. When people fasten them with scotch tape,
it is often an indication that they want them to stay in place permanently. We asked
Lana why she uses the post-it notes and what is written on them. She replied:
“I keep there just a couple of names of the funds that I use very often.”
This answer made us realize that this information could be added to the web portal.
We asked Lana if this was a good idea and she said “Yes, absolutely!”</p>
        <sec id="sec-4-1-1">
          <title>We made this into the following requirement: Req1: The system shall display the data about the most frequently used funds.</title>
        </sec>
      </sec>
      <sec id="sec-4-2">
        <title>Observation 2: Report updates</title>
        <p>During the first few days of the observation process, we noticed the following
situation:
Every day Mark, one of the MA team members, came to the office a little earlier than
the others. He would update all financial reports manually and ran the calculations
based on this updated data. Finally, he sent an e-mail with a notification to the whole
team.</p>
        <p>At the beginning of the project, we already knew that this process should be
automated because it is tiresome, slow and may be the source of errors. We decided to
ask Mark to explain what he does and how he does this every morning. We engaged
in an informal talk. Here is a summary of what we understood in this discussion:
First, he was looking for fresh financial data on the special financial software. Next,
he copied this data and added it to the Excel sheet. Next, he refreshed the calculated
formulas and repeated this process for the six additional reports. Finally, he sent the
e-mail to the investment team’s mailing list to notify the team that all reports were
updated. This process took Mark about 20 minutes and he felt that was very
inefficient.</p>
        <p>Using this process and the data we obtained, we decided to ask three additional
investment managers for their opinion about this process and whether they find it
useful.</p>
        <p>They all agreed that this process is very important and that they could not start
anything without refreshed data. One of them pointed out that not everybody needs all
the reports, so each one of them named three of the reports they use.</p>
        <p>We found out that this process is crucial for the productivity of the team. Also, we
realized that one person is doing all the updates for everyone else. This made us add
the following requirement:</p>
        <sec id="sec-4-2-1">
          <title>Req2: Automated updates through the system</title>
          <p>The users in charge of the updates pointed out the following:</p>
          <p>Some updates took much time; it would be good if we could have some text that
indicates the phase of the update process.</p>
          <p>We responded to this request by implementing a multi-line textbox that notifies the
user which phase of the update is currently on (Figure 3). After the first prototype, we
decided to test it by giving it to the users to try it out. The reactions were very
positive.
After implementing this feature, we continued to observe the users and saw an
interesting pattern:</p>
          <p>Users do not really follow the task progress closely. They minimize the application
until the end of the process or occasionally take a look at the application window.</p>
          <p>Using this observation, we realized that, it would be more useful if the users had a
simple progress bar so they can quickly check how much time is left until the update
is completed. This idea was converted to a requirement (Figure 4):
Req3: The system shall display progress bar while update processes are running
Having in mind that users usually minimize this window, we also implemented a
notification in the form of a message box that pops up indicating that the update
process has completed. This is linked with requirement 5 explained in Observation 4.</p>
        </sec>
      </sec>
      <sec id="sec-4-3">
        <title>Observation 4: Difficult search of right documents</title>
        <p>Sometimes, users asked us for help with some IT problems. While helping them we
noticed that some users were having difficulties finding the documents they need:</p>
        <p>Jade, one of the managers, asked if we know where she can find the reports about
data analysis for the following day, because they were not where they used to be.</p>
        <p>Jade showed us the folder that usually contains daily reports about data analysis:
Jade found the folder mentioned above by opening around five folders, one after
another. When she opened the folder that contained the reports she needed, she
discovered that the latest reports were four days old.</p>
        <p>We realized that Jade was facing two problems. One was that the location of the
document she was looking for has changed, or the documents were not updated.
Another problem was the complicated structure of files and folders, which was not an
obvious problem for Jade. We hoped that if we ask Jade about this problem it will
become more obvious. We asked her whether she would like to have a better structure
of the folders. She replied:</p>
        <p>“Well, I guess, I don’t know, I just want to be sure that the latest document is on
specific place where I can find it.”</p>
        <p>We noticed that she was obviously worried only about the first problem. In order to
solve the first issue, we had to ensure that all documents will be up-to-date and on
specific location. We already ensured that the documents will be automatically
updated instead of manually which guaranteed that documents will be always
updated. However, the problem was that the reports were updated but placed in a
location where Jade could not find them. We asked Jade if she would like to have a
possibility to choose a personal folder for storing the reports:</p>
        <p>The feedback was really positive and Jade was excited about the idea.</p>
        <sec id="sec-4-3-1">
          <title>The problem led to two new requirements:</title>
          <p>Req4: Users shall be able to choose a folder where they want to store the report for
the following day.</p>
          <p>Req5: System shall open the file location upon the end of the updates
However, we decided to elicit the following problem further.</p>
        </sec>
      </sec>
      <sec id="sec-4-4">
        <title>Observation 5: Searching files through nested folders</title>
        <p>Even though Jade did not point this out as a problem, a better folder structure would
help her to locate the reports much faster. For Jade the process of going through five
levels of folder hierarchy was normal and usual. She was not able to see this as a
problem. Consequently she could never mention this as a requirement. This led to the
following requirement:
Req6: The system shall display all the documents at one place and enable users to
search files they need by using the date and the name of the file.</p>
        <p>Even though we enabled users to choose a folder for the updated reports (Req4), it is
still not easy to find the correct file because a folder usually contains several hundred
documents. Compared to Req5, it is important to mention that users update the reports
once per day, whereupon the system opens the file location, whereas they access
reports several times per day. Hence the search by date and name of file in Req6.</p>
      </sec>
      <sec id="sec-4-5">
        <title>Observation 6: The use of SQL code</title>
        <p>This situation occurred when the one of the quantitative analysts was on vacation.
Therefore, one of the investment managers asked us for help with a database.</p>
        <p>George, the portfolio manager, asked us to put data about a financial transaction
into the database.</p>
        <p>We found a tutorial written by the quantitative analyst, which explains step-by-step
how this task should be done. The steps included the construction of SQL statements.
We showed these instructions to George, who said:</p>
        <p>“I saw that tutorial and I read it, but I cannot understand it. It must be something
basic and easy but I do not have any knowledge about it as I have never been trained
in SQL.”</p>
        <p>Based on this conversation, we solved George’s immediate problem by adding the
data he needed into the database, but we needed to solve the more general problem we
identified, that the system forced non-IT users to write SQL statements. Based on this
discovery, we concluded that this process should be simplified so that users are not
required to have SQL knowledge. Thus, we made this into the following requirement:
Req7: Provide forms that query the database without requiring users to use SQL code</p>
        <p>Using this requirement, we developed a new feature. On the web portal, there is a
section where every user can add any data into the database, simply by inserting
details in a form and clicking the submit button.</p>
      </sec>
      <sec id="sec-4-6">
        <title>Observation 7: Graphical data representation</title>
        <p>One of the initial requirements was a graphical representation of financial indicators.
We observed that every day investment managers were plotting graphs from the
updated data in Excel files. In order to automate this process, we made it into two
customer requirements:
Req8: Interactive graphical representation of indicators
Req9: Users shall be able to download graphs directly from the web portal
We asked one of the investment managers if she can show us how she does it.</p>
        <p>Sarah opens the Excel file and updates the data, then plot the graphs. In the Excel
files there were three graphs for the same indicator. When we asked why, she replied:
“Well, sometimes I need to see a graph based on a three-year dataset, but sometimes
I would prefer it based on an annual one.”</p>
        <p>We decided to check whether other users had the same needs. We asked two other
investment managers the same questions.</p>
      </sec>
      <sec id="sec-4-7">
        <title>Observation 8: Choosing dataset for the graphs</title>
        <p>The investment managers told us they used three different datasets: one, three and
five years. This observation was converted to a requirement for a dynamic graphical
representation of indicators:
Req10: Web portal shall enable user to choose dataset for generating graphs
depending on the timeframe
This was implemented in the web portal as a new feature. Users are able to switch
datasets for one, three and five years by pressing a button.</p>
      </sec>
      <sec id="sec-4-8">
        <title>Observation 9: Missing necessary information</title>
        <p>Communication among the investment team was done mostly through e-mails, direct
discussion and meetings. When it comes to the reports discussion it is important to
mention that comments by the investment managers are very valuable. The
discussions are usually done in the office where everybody takes notes about what
other people said. During the observation period we witnessed the following
situations many times:</p>
        <p>Somebody is asking for a clarification of the comment on the report from the last
month, but the person who has the information is not in the office.</p>
        <p>It was very important but hard to keep track of all the comments. We realized that
information exchange about reports could be improved in many ways. Based on the
observations we proposed that comments on reports should be one of the features of
the web portal:
Req11: Enable posting comments on every uploaded file</p>
        <sec id="sec-4-8-1">
          <title>Req12: Automatic emails Table 1 shows the summary our observations, our interpretation of the problems faced by the users, the resulting requirements, and the follow-up observation that led to further requirements if any.</title>
          <p>Observation
1. Using post-it notes on the
computer screen
We spotted that manager glued
post-it notes by scotch tape to
make them permanent
2. Report updates
Watching the manager doing
updates by hand we realized
how they should be automated
3. Checking progress of the
updates
Users do not watch the update
progress continually. They
continue working and
occasionally check the
progress.
4. Difficult search of right
documents
We were asked by a manager
to help her to find a document
5. Searching files through
nested folders
The manager was going
through several levels of nested
folders in order to find the
document
6. The use of SQL
Users could not use the tutorial
that was provided to them in
order to enter data in the
database
7. Graphical data
representation
Observing the managers
plotting the graphs for the
financial indicators
8. Choosing dataset for the
graphs
We noticed that managers were
plotting graphs for three
different periods of time
9. Missing necessary
information
Many people complained that
they cannot get the right
comment on some report
because it’s hard to keep track
of all of the comments during
discussion
Interpretation of the</p>
          <p>problem
Lack of visibility of
needed info
Manually updated reports
sometimes cause errors
Slow, tiresome process
Lack of the progress
indicator for the report
updates
Difficulties finding
documents
Unknown location of a
needed document
Data is not easily
accessible
Updates of the database
are done by writing SQL
queries
Difficulty obtaining three
views of the data
depending on the time
frame
Lack of possibility to
quickly change the
dataset and views
Lack of repository
linking reports with
comments.</p>
          <p>Requirements
Req1: The system shall
display the data about
the most frequently used
funds.</p>
          <p>Req2: Automated
updates through the
system
Req3: The system shall
display progress bar
while update processes
are running
Req4: Users shall be able
to choose a folder where
they want to store the
report for the following
day
Req5: System shall open
the file location upon the
end of the updates
Req6: The system shall
display all the documents
at one place and enable
users to search files they
need by using the date
and the name of the file
Req.7 Provide forms that
query the database
without requiring users
to use SQL code
Req.8 Interactive
graphical representations
of the indicators
Req.9 Download graphs
directly from the portal
Req.10 Buttons for
changing dataset
depending on the time
frame
Req.11 Posting
comments on every
uploaded file
Req.12 Automatic
emails
Further</p>
          <p>Elicitation
Observation 3.</p>
          <p>Observation 5
Observation 8
5</p>
        </sec>
      </sec>
    </sec>
    <sec id="sec-5">
      <title>Discussion</title>
      <p>We believe that if we had not used ethnographic techniques we would have been
unable to capture the details of the everyday work and challenges faced by users. For
example, during Observation 1. If we had not very carefully observed the working
environment, we would not have been able to see the details and significance of the
post-it notes. Some observation results led to further observations where we
discovered issues that were even less apparent on the surface. For example,
Observation 4. The investment manager complained about the location of the file he
was searching for. If we would not have asked him to show us how he searched for
the document, we would never have been able to spot the other problem that he was
facing. It is similar with Observation 2. We discovered the additional need of the
users after watching how they interacted with the application. This is a very good
example that proves that if we had not used an ethnographic approach and watched
over the shoulder of the users, we probably would never have found out about this.</p>
      <p>Without direct observation it would have been difficult to identify the problem in
observation 6, where the non-IT users needed to use SQL code in order to add data in
the database. We might have found it by studying the tutorial, but often these
documents are not stored in a central repository where they are readily available. In
these cases, even finding the document requires observation and time. In this specific
case, it is quite probable that if the quantitative analyst were present, he would have
solved the data entry issue easily and we would have never have been able to observe
this problem.</p>
      <p>This case showed another important aspect. The user asked us to help him enter the
data. This provided us with a magnificent opportunity to: a) solve his immediate
problem; b) find the tutorial and understand that he couldn’t use it; c) establish a
relationship of trust with the user because we were able to help him. This last point is
probably the most important because a good relationship with users is very valuable.</p>
      <p>
        Helping users to do their work goes beyond the apprenticeship model proposed by
Beyer and Holtzblatt [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ] where the user is the master and the designer is the
apprentice. But designers, in this case the intern, may be experts in using the system.
They can then help the users to use the system, therefore building a two-way
relationship rather than the one-way master-apprentice.
      </p>
      <p>In observation 8 the key point is that we spotted the problem because we asked the
user to show us the process of plotting the graphs. The obvious requirement was the
need for automated graphical representation of the data, but again we spotted another
problem that was not that obvious. If we would not have observed very closely the
update process, we would have never spotted the second problem.</p>
      <p>
        About half of the observations and resulting requirements are strongly related with
the ergonomics of the system. This is not surprising because the use of ethnography in
IT has mostly been in this field, e.g. [
        <xref ref-type="bibr" rid="ref1 ref2">1, 2</xref>
        ]. Most other observations and requirements
are related to content needed by the users. One observation and requirement has to do
with the need to shield users from the technical details of the system.
      </p>
      <p>
        One of the advantages we had in this work is that the intern was a developer,
therefore able to understand the system on the one hand and users and their needs on
the other. By spending time in the open space and observing users she was able to
spot many aspects of work that users were not able to express. The observation
sessions were less structured than contextual interviews as defined by [
        <xref ref-type="bibr" rid="ref1 ref2">1, 2</xref>
        ], but they
did enable the two-way relationship we discuss above. Whereas Beyer and Holtzblatt
recommend that the designer moves away as quickly as possible from the inverse
relationship, we found it useful to be able to help users and therefore foster the very
partnership that Beyer and Holtzblatt seek [
        <xref ref-type="bibr" rid="ref1 ref2">1, 2</xref>
        ].
      </p>
      <p>
        This work bears resemblance to the early work on ethnography and requirements
engineering [
        <xref ref-type="bibr" rid="ref5">5</xref>
        ], where lightweight ethnography techniques for engineers were
developed. As envisioned in [
        <xref ref-type="bibr" rid="ref5">5</xref>
        ], it is the intern, a would-be engineer, who did the
ethnography work without an ethnographer as proxy.
6
      </p>
    </sec>
    <sec id="sec-6">
      <title>Conclusion</title>
      <p>In this paper we described a project where an intern was given the opportunity to
observe the work of users in order to improve the requirements of an IT system.
During formal interviews, many users indicated needs that were difficult to
understand. The observation helped us to better understand these needs and to identify
additional requirements.</p>
      <p>In most organizations it is impossible to have an engineer observe users in the way
that is described in this paper. By just being there. Engineers are costly resources. It is
difficult to invest their time in such seemingly wasteful activities. That said, many
organizations would happily use interns for this activity, their time being seen as less
costly. Universities should make encourage industry relationships to help their
students find such internships and then coach them accordingly. For many engineers it
is the first and last time they could really use ethnography skills. For companies it can
be a very valuable use of the intern’s time.
7</p>
    </sec>
  </body>
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