Archive for the ‘usability’ Category

Interesting stuff I’ve learned at the Plone Conference 2009 (days 1-2)

Thursday, October 29th, 2009

There’s been lots of interesting stuff going on at this year’s Plone conference, but what’s really excited me are the user interface and general front-end developments taking place, particularly the Dexterity / Deco editing user interfaces and a sensible approach to site theming that doesn’t make your brain melt.

It’s great that there have been so many sessions focusing on these things as it demonstrates how seriously this stuff is being taken in Plone. Designers and integrators certainly have no need to feel like the poor cousins of the hardcore Python programmers and sys admins.

Here are some of the highlights so far:

1. TinyMCE

This is going to be used as the replacement page editor for Kupu in Plone 4 and upwards, although it’s also available to install as an add-on product in Plone 3.

This is great news as we’ve started to identify some serious usability problems with Kupu and we’re keen to get away from using the third-party commercial editor we’ve been using, Editon-Pro.

Whilst Editon-Pro is a great tool, its reliance on running in a Java Applet makes it slow, especially on older computers and it has no simple integration into the main Plone setup. The main advantage Kupu offered was its ability to insert links and images by browsing Plone’s folder structure and to allow users to upload images directly.

Unfortunately, Kupu doesn’t do many of the things that Editon-Pro does quite well, for instance handling page anchors. Kupu’s implementation of this is frankly baffling but TinyMCE’s handling is far closer to Editon-Pro’s and doesn’t require users to adjust their mental model (in Editon-Pro and TinyMCE users can insert their anchors; in Kupu users can only link to anchors which have been automatically created for them).

Another nice feature in TinyMCE is the paste from Word option which is something that Kupu doesn’t seem able to handle at all — Editon-Pro allowed users to “paste as plain text” which may have removed all formatting but at least it worked.

2. collective.xdv and Deliverance

Plone 3 theming is horrible. Just horrible I tell you! Luckily, this is a view shared with everyone else who has ever done Plone theming so two very similar new approaches have been developed: collective.xdv and Deliverance.

These both use rules-based theming to map sections of a Plone page to a custom-built HTML/CSS theme. In essence this means you create your own design and just display the bits of Plone you want in it (i.e. the content). The mapping is done via a XML rules file which in collective.xdv’s case needs to be created manually. For Deliverance these rules can also be created manually but there is also an exciting new project called Banjo (see what they did there?) which is a GUI for generating the rules and which also provides real-time previews of the integrated theme.

So, what’s the difference? In essence it appears that Deliverance is not just Plone-specific — it can be used to theme any third-party system whereas collective.xdv is completely Plone-specific. Xdv is a little easier to get started with as it’s integrated fully into the Plone architecture (as an add-on product) and Deliverance runs as a proxy on a webserver so has a higher installation / configuration overhead.

The good news is that they basically use the same syntax (statements such as “drop”, “replace” etc.) so it should be able to move easily between the two. However, xdv uses XPath to write rules (it’s XSLT-based) whereas Deliverance uses a slightly more designer-friendly CSS-style syntax.

3. Deco

Slightly confusingly there seem to two elements to Plones 4 and 5 called Deco. One is the basic grid layout CSS used for the new default Plone theme which is similar to other CSS layout tools such as 960.gs. The other part of the Deco framework is a drag-and-drop UI which allows content editors to add different elements to their pages without having to do complex things in the page editor.

From a UI perspective it’s a great approach, although the pessimist in me sees it could also be a recipe for some pretty horrendous looking pages.

4. jQuery tools

More UI loveliness –jQuery tools is a lightweight jQuery plugin which provides a lot of the functionality supplied by jQuery UI at a fraction of the download overhead.

In Plone 4+ this is used to provide some great UI controls such as login boxes in stay-on-the-page overlays and dialogues, tabs and carousels.

5. Dexterity

Dexterity is a replacement for Archetypes (Plone’s framework for creating content types) which can be installed as an add-on product for Plone 3. Whilst statements like that might usually make me run in horror, this is great news for a simple reason: it provides through the web content type creation, just as it should be. Basically, another great UI improvement — no more fiddling around with lots of Python code to create your content types.

So, overall there’s some great stuff here — many of the annoyances faced by designers and integrators have been addressed and it’s great to see such an emphasis put on usability.

Posted via email from What’s this for?

Weave: visualising browser data

Friday, September 25th, 2009

Mozilla’s Web Weave UI design challenge seeks to find solutions to the issue of visualising browser data accumulated across a number of devices, such as:

  • Bookmarks
  • History
  • Tabs
  • Stored credentials

The Mozilla Weave project aims to allow synchronisation of this information across different Firefox instances. However, this particular design challenge is looking at ways that this information may be shared across different browsing devices when access to Firefox isn’t possible, i.e. via a web page.

Details of my proposal follow. It has been in part influenced by the findings of one of the Challenge’s recommended readings: Jason Hong, Contextual Web History: Using Visual and Contextual Cues to Improve Web Browser History (PDF), and other existing web-based mechanisms for managing visual assets (e.g. Flickr).

One of the findings of the paper was that visual cues in the shape of thumbnail images of visited websites helped users to better identify sites in their browsing history: the most useful size of these thumbnails was found to be around 235 by 148 pixels (p.5). This visual approach to representing history is being used by other browsers, including Safari and Chrome.

My idea expands on the use of visual cues for browsing history and also applies them them to bookmarks, tabs, credentials and history. As the data in this example becomes visual, it also lends itself to being managed by tools similar to those for managing photos and other visual assets on social networking sites. The Flickr model of page layout and set (”folder”) management, mainly due to its familiarity to me seemed to be of particular use.

The prototypes presented have been created by Balsamiq Mockups and are deliberately lo-fi. However, they help to clarify some of my concepts. They leave aside logging in, Web Weave account management and help screens etc. and are broken down into the following screens:

  • Bookmarks
  • Browsing history
  • Tabs
  • Web accounts
  • Preferences

Main menu

Mozilla Design Challenge

The main menu provides an overview visualisation of all stored data. All main headings, “Bookmarks”, “My browsing history” etc. can be expanded and hidden and show recent activity.

A search box enables users to search across all stored data (with the exception of passwords) — searches would also be filtered by data type (bookmarks, history, tabs etc.).

Bookmarks

Mozilla Design Challenge 1

Both Firefox’s existing method of organising bookmarks and the bookmarking sharing service Delicious allow users to file bookmarks of websites and categorise these by tags (Firefox and Delicious) and / or sorting by folder (Firefox). Whilst this allows for cross-referencing of bookmarks, bookmarks are presented textually as the title of the website, its URL, user generated tags, and in the case of Delicious, a textual description.

My model presents the data visually, showing thumbnail images for each bookmark, alongside its metadata, some of which is automatically generated (URL, site title, date visited), other parts of which are user generated (tags). In this visualisation, all data can be edited in place (as with editing photo metadata in Flickr). Bookmarks can also be deleted via clicking on an icon with a suitable “delete” metaphor, and filed in one or more folders (like Flickr “sets”). The method for filing shown in the prototype was also influenced by Google Mail and Reader’s method of associating emails / feeds with one or more folders.

The folders created by the user are shown to the right, much like sets in Flickr. These can be edited by activation of the relevant edit link. Users may wish to edit the folder’s title and thumbnail image, using either the thumbnail of a representative website or an image selected by URL or direct upload. A default placeholder image would be used in the absence of a selected image.

Browsing history

Mozilla Design Challenge 2

Firefox’s current “show history” option presents a textual list of previously visited sites, showing the following metadata: site title, tags and location (URL).

Jason Hong’s paper cites research that, although up to 81 per cent of web pages visited by users are revisits, web browser history functions are only used around 0.2 per cent of the time to initiate these visits.

In this model, browser history is visualised as it is to an extent in Safari and Chrome, but with more accompanying metadata and the ability to add the sites as bookmarks. Selecting the “Add to bookmarks” functionality allows users to add and amend site metadata and file the bookmark in an existing folder (or inĀ  a a new folder).

The time periods selected for differentiating browsing sessions are kept as per the standard Firefox organisation, i.e. today, this week, then previous months. A calendar widget is suggested as an alternative way of browsing by particular day, with the page content updated dynamically as the user clicks through dates. Other sort options which might suggest themselves are: web site title, URL, the device the page was accessed on or by tabs.

Part 2: tabs, web accounts (credentials) and preferences.

Weave: visualising browser data: part 2

Friday, September 25th, 2009

Mozilla’s Web Weave UI design challenge seeks to find solutions to the issue of visualising browser data accumulated across a number of devices. This is part 2 of an article which outlines a potential solution to some of the issues raised. It covers the visualisation of tabs, accounts and preferences.

Please read: part one: introduction, bookmarks and browsing history first.

Tabs

Mozilla Design Challenge 3

Visualising tab history across a number of devices is possibly a little more challenging than considering bookmarks and general browsing history. Tabs can be open on any number of the user’s devices so one obvious question to be considered is how to arrange this information.

The tabs visualisation stays with the main visual metaphor, with history broken down per tab per device. This assumes the user has some way of adding and deleting participating devices — e.g. a copy of Firefox at home, or another browser running on another computer such as a work PC, laptop or mobile browsing device.

Tab data includes the title of the page being viewed and the tab history. The visualisation displays a thumbnail of the currently open page and previously visited pages. There should be a straightforward way for users to open this on their current device (and possibly all tabs open on other devices), and to save to bookmarks (or if the site is already stored as a bookmark to easily see this).

Views may change slightly depending on how the data is sorted — for instance, if the list were sorted by device name, then the displayed metadata could include information about the device the site was initially opened on.

Accounts (credentials)

Mozilla Design Challenge 5

Whilst it might be useful for users to synchronise account data across a number of devices, it is also the type of data which lends itself least readily to being visualised; in fact it is not appropriate to visualise data such as passwords.

In this model, sites with stored credentials are again presented as browsable thumbnails lending the user the ability to log in directly to protected sites. Some sites may offer API functionality which allows users to manage their credentials via Weave, but the majority will require the user to visit them in order to do so. Any changes to credentials would need to be synchronised immediately in Weave.

Preferences

Mozilla Design Challenge 4

Firefox preferences include a number of different options, the more obvious being browser home page, or Firefox persona. Some of this information may be Firefox-specific, other less so (e.g. home page). The visual metaphor can still be used, employing site thumbnails for selected home page or a visual representation of the selected persona. It could also be useful for users to be able to export the relevant parts of this information for use with other browsers if it cannot be directly applied (e.g. for Internet Explorer, Safari or Chrome); similarly options should be available to import data from a file generated by another browser or to be accessed via Firefox’s preferences menu, providing an option to pull the information directly in from Weave.

Summary

The model presented is quite simple and does not attempt any advanced data visualisation. Instead it uses models of organisation and interaction that users may be familiar with from using other social networking / asset organising websites. It is particularly influenced by models for organising visual information, for instance Flickr’s model of managing photo metadata.