\section{User eXperience evolution}

The integration of collaborative environments goes beyond functional aspects.
Offering the population an unified experience across these environments has
been the key to encourage the use of the platform as it reduces the perception
of the complexity. Thus, the SPB Portal information architecture was redesigned
to provide a transparent navigation and to reach users with different profiles.
A process of harmonization has been employed on the interaction models of each
tool to reduce the learning curve.  At the same time, a new visual style was
created to unify the navigation experience and to comply with the guidelines of
the digital communication identity pattern established by the Federal
Government.

With the increase of the system features and the addition of new tools, the
visual style has steadily evolved to keep the navigation unified.  Moreover,
tools from different backgrounds, which in many cases run functionalities with
similar concepts, made us face the challenge of developing a transparent
interface that unifies various context. For each required feature, we often
have to conciliate data with distinct structure and information pattern from
each used tool. The interface was the meeting point for this data with links
that users will not notice.  The most common features (i.e. search, display,
and edition of profile information and content) have been brought in line with
the structure and other existing features of the SPB Portal.

The other challenge is related to responsive web design. The SPB Portal
interface and each of its pages were designed following the bounds of
responsiveness provided or supported by each tools.  In particular, in the case
of Noosfero, which do not have any official branch dedicated to improve its
responsiveness, we needed to engage with the expansion of this platform, where
we made a lot of contributions and dialogues with the community and
maintainers.

In summary, after the release of the new SPB Portal in 2014, several
validations activities were implemented in 2015 and 2016. The aim was to bring
the users closer to features that they have more interest and designing a
navigation which deepens in accordance with the user's depth of knowledge.
