Microsoft is working on an interactive whiteboard which aims to interpret users' sketches to complete the diagrams they were drawing.

The firm will unveil the prototype as part of Techfest - an annual event where its researchers reveal some of the projects they are working onThe digital canvas is designed to help workers make sense of "big data" - the growing amount of information available from sensors and other sources.

The project is still at an early stage.

However, one analyst suggested there would be significant demand for such a product if Microsoft was able to overcome the hurdles involved in bringing it to fruition.Microsoft spent $9.8bn (£6.5bn) on research and development in its last financial year.That is less than Samsung Electronics' $10.5bn investment but more than Apple's $3.4bn, Sony's $4.6bn and Google's $6.8bn R&D tallies.

Storytelling with data

The demonstration of SketchInsight will be hosted by Bongshin Lee at the company's headquarters in Redmond, Washington. The user interface expert has worked on interactive display technologies since joining the firm in 2006.She will show how a user could draw an image on a large touchscreen to call on pre-loaded data to create interactive charts, maps or other diagrams.One example she has rehearsed involves research into people's energy use.

By drawing stick figures Dr Lee can bring up a graph showing the spread of the population covered by the study, and then by sketching a battery alongside it she can bring up another chart illustrating how specific groups of people use different amounts of power.Microsoft suggests the facility would be preferable to current presentation software, including its own Powerpoint program, in which such graphics must be prepared in advance of a presentation.

The project is one of several large-screen technologies under development by Microsoft which it believes will become more common both at work and home in the future."As computers grow more capable of handling massive amounts of data, they also need to become more intuitive to use," Kevin Kurtz, spokesman for Microsoft Research, told the BBC.We're all about bringing that to life with new ways to engage with technology that emphasise voice, touch and gesture."

Tough challenge

While much of the current buzz in tech is focused on small high definition displays found in tablets, smartphones and smart watches, one analyst believes there is untapped demand for the tech giant's vision - not least because of all the data generated by the other gadgets.