Usabilidade

Competitividade e Inovação

Agenda

Definição Valor Testemunhos Métodos e técnicas Padrões No mundo… no Brasil Em Pernambuco

Usabilidade

"Usability is the measure of the quality of a user's experience when interacting with a product or system — whether a Web site, a software application, mobile technology, or any user-operated device.”Usability.gov

Ciclos de usabilidade

"Usability is an approach to product development that incorporates direct user feedback throughout the development cycle in order to reduce costs and create products and tools that meet user needs.” UPA

Ciclos de usabilidade

Usabilidade e estratégia

Usabilidade

Valor

Mais funcionalidades = Mais ValorLess is more

Mais complexidade = Mais ValorSimplicity is the killer application

Usuários vão logo perceber o valorValue must be clearly communicated in the context of the need

Se é valor para mim, o é para todosUser resaerch is required to understand your user

Valor é diferente para cada pessoaValue is the same for everyone. Easy customization and personalization is the future

Entregar valor é problema do pessoal de marketingUser-centered design allows the team to work

Usabilidade

Testemunhos

Increased Productivity

“The average mid–sized company could gain $5 million per year in employee productivity by improving its intranet design to the top quartile level of a cross–company intranet usability study. The return on investment? One thousand percent or more.”Nielsen (2002)

Overall Value

“I estimate that spending about 10% of a project’s budget on usability activities doubles usability.”Nielsen,2003

ROI

About IBM…“The company said in the month after the February 1999 relaunch that traffic to the Shop IBM online store increased 120 percent, and sales went up 400 percent.”Battey (1999)

Exemplo ROI

Melhor usabilidade– Ganhar um dia de

treinamento• Economia:

• R$ 4.270,00

– Aumento de produtividade de 10 %, Ganho no ano:

• R$ 156.000,00

Exemplo – Sistema ER– Usuários: 100– Salário: R$ 1.200,00– Custo trabalhista ano:

R$ 1.560.000 + impostos

Impacto financeiro – Usa por 1/3 do tempo– R$ 520.000,00

Fonte: Nielsen, 1993

Increased Sales

“One study estimated that improving the customer experience increases the number of buyers by 40% and increases the order size by 10%.”Creative Good (2000)

Increased Web Site Traffic

“A bad design can cost a Web site 40 percent of repeat traffic. A good design can keep them coming back. A few tests can make the difference.” Kalin (1999)

Decreased Cost

“The average UI has some 40 flaws. Correcting the easiest 20 of these yields an average improvement in usability of 50%. The big win, however, occurs when usability is factored in from the beginning. This can yield efficiency improvements of over 700%.” Landaer (1995)

Tremendous Saving

Sun Microsystems has shown how spending about $20,000 could yield a savings of $152 million dollars. Each and every dollar invested could return $7,500 in savings.”Rhodes (2002)

Engenharia de Usabilidade

Métodos e Técnicas

"Usability is a quality attribute that assesses how easy user interfaces are to use. The word 'usability' also refers to methods for improving ease-of-use during the design process.”Jakob Nielsen, Usability 101

Prototipagem

Padrões Industriais

Reconhecimento da Industria

28

Qualidade: ISO 9126

ISO 13407

Usabilidade na Industria

Consulting e Indoor

EUA CE Austrália

Brasil

Usabilidade no Cin em PE

Porto Digital

Convênio de Cooperação

Disseminar a cultura de usabilidade

Criar trabalho na área de usabilidade

Levar processos em empresas de TI em PE

Obrigado

Centro de Informática – UFPE– Alex Sandro Gomes

• asg@cin.ufpe.br• www.cin.ufpe.br/~asg