Posted by jc-Qualitystreet on 2011/02/22
…that is all you need to work effectively!
The mockup activity (or prototyping) is part of a user-centered design approach. And the « Wireframe » has become over the years one of the most favorite artifact of User Experience specialists to communicate a concept, verify design assumptions and testing various options or validate ideas and usability decisions …
Wireframe: the real issues
A wireframe is a « low fidelity » prototype. This non-graphical artifact shows the skeleton of a screen, representing its structure and basic layout. It contains and localizes contents, features, navigation tools and interactions available to the user.
The wireframe is usually:
- black and white,
- accompanied by some annotations to describe the behavior of the elements (default or expected states, error cases, values, content source…), their relationships and their importance,
- often put in context within a storyboard (a sequence of screens in a key scenario)
- refined again and again
- used as a communication tool serving as an element of conversation and confirmation of « agile » user stories
Various tools can be used to create wireframes (with different format and level of fidelity), from the simplest to the most sophisticated ones, free or not…
Just enough is the best…
I’ve seen too many projects (led by traditional development methods) in which a wireframe was one of the numerous artifacts of the project, just additional documentation, created solitary by a single person, aiming at replacing dialogue and conversation between people. What a waste…
But I’m also always amazed when I intervene on a agile project as a coach to observe that wireframes are rarely used. Moreover, design & specifications workshops, interactions, conversations, feedbacks between Product Owner and team are not effective, partially or not done. What a waste…
The winner of the « the best prototyping tool award » is actually… a Trio!
The real strength of the wireframe lies in its ability:
- to be a communication tool, used during a workshop to facilitate discussion with developers, testers and business actors (Product Owner).
- to be created collaboratively, in order to enable everyone on a team to have a shared picture ,
So, wireframes help to generate feedback, to see potential problems with an interface and to clarify conditions of satisfaction.
For these reasons, simple PAPER PROTOTYPING done collectively,
quick collaborative wireframes on the WHITEBOARD,
and rapid sketching activities with BALSAMIQ,
are by far the most effective.
On Agile projects (with short sprint lasting 2 or 3 weeks), this is not only an option! Rapid and valuable prototyping in order to foster collaboration and elicit rapid feedback is a must.
Exploring, illustrating and understanding ust enough, just in time… wireframes should be adjusted in terms of scope, details, timing and level of fidelity with a special focus on feedback, collaboration and interactions. This is probably the reason why I abandoned tools like Microsoft Visio and PowerPoint or Axure RP Pro or PowerPoint that have long been my preference but which are mostly inappropriate in the Agile contexts …
Paper prototyping is probably the fastest and easiest form of wireframes but not the least effective. Direct, simple, visual, cheap, enabling rich feedback, paper wireframes focus above all on collaboration and proximity.
Complexity of the format varies from one context to another, as highly developed paper prototypes can be created with proper equipment, good preparation and facilitation. Interactive paper prototyping sessions offer other benefits: direct manipulation, interactivity, playfulness and creativity.
Larger collaborative workshops (focus on prototyping) can be very valuable both for design and testing activities.
Simplicity is both a value and a strong principle of agility. Paper prototyping is a solid practice of Agile teams
Witheboard: just in time, just enough…
Teamwork on the whiteboard is one of the most efficient form of communication.
Collaborative specifications workshops around the whiteboard are intense and highly valuable:
- they create a collective dynamic leading to a stronger decision
- they are a incredible source of discovery and creativity
- they are interactive, playful, never boring
- they focus on visual and touch through direct manipulation
Several specifications workshops take place during an agile sprint.
Some are dedicated to the scope (user stories) of the current sprint; other (also called Product Backlog refinement) serve to explore, refine, model collectively user stories envisioned for the next sprint. Some teams I coach organize this specification workshop, just in time, the last day of the current sprint (i.e. Friday afternoon) after the Sprint review & Retrospective in order to be ready for the Monday sprint planning.
Other teams organize it in the middle of the sprint in order to have time for requirement exploration, testing, business modeling or quick user research….
Design & specification workshops give the necessary context and conversational elements so crucial to User Stories. They enable to illustrate and clarify the conditions of satisfaction while delivering valuable examples.
Take a picture of the results with you camera, and you have a useful element to associate with your user story description written in the wiki!
Balsamiq is an electronic tool that I recommend to agile teams (complementary with paper and whitebooard). Easy to use and allowing very rapid sketching, the application presents a large library of UI components (build-in and from the users’ community), many templates, export possibilities and precious plugins for Confluence or Jira users.
I use the tool with several co-located team and in distributed contexts offshore via screen sharing: in both cases the contribution of the tool was welcomed by teams and Product Owners « a useful tool that serves human activities« .
The sketchy format also has its interest: it lets you focus design conversations on functionality. No risk to forget the reality!
You must focus on your working software deliveries to measure you project progress. Wireframe is a communication tool.
Balsamiq Mockups can be used to model any type of interface: web portal and websites, software application, mobile interfaces…
This is not a free tool but the price / quality ratio is excellent.