**3. TWTD**

20 E-Learning – Organizational Infrastructure and Tools for Specific Areas

In this section we will include the frameworks used to develop the main e-learning

Touchless is an SDK that allows users to create and experience multi-touch applications. Touchless started as Mike Wasserman's college project at Columbia University. The main idea: to provide the same functionality of a multi-touch environment using cheap hardware and open-source software. All the user needs is a camera, which will track coloured markers defined by the user. Touchless is released free and open-source to the world under the Microsoft Public License (Ms-PL) on CodePlex [2]. Figure 1 is a snapshot of the major classes of the touchless SDK [2]. We modified the touchless SDK to support different types

The following are some possible solutions to ease the interaction with computers for the

Keyboard emulation with specialized switches that allow the use of scanning or Morse

Software utilities that consolidate multiple or sequential keystrokes.

Trackballs or other input devices provide an alternative to a mouse.

Mouth sticks, head sticks, or other pointing devices.

Technologies used

**2. Technologies adopted** 

**2.1 Touchless as an alternative** 

Fig. 1. Class diagram of touchless SDK [2].

**2.2 Possible solutions** 

physically impaired:

code input.

environments.

Assessments and possible extensions

Section 5 will conclude and provide directions for future research

of disabilities. The details will be introduced in sections 3 and 4.

They want they do (TWTD) is educational software that uses markers and web-camera as a method of interacting with computers (to replace the mouse). The markers are defined according to the level of disability. The users then get educated using computers in different subjects. The aim of this solution is to help physically challenged students who were not able to use computers to get educated in a creative way. Also the solution is economically feasible since it only requires a web-cam and a layer of software for interactions. There are several products that target the same problem. TWTD (since it used touchless SDK) remains by far more economically feasible [9].

We implemented TWTD [9] as a proof of concept that creative solutions may help in educating physically challenged students with minimal resources. We already tried TWTD at special purposes schools in Kuwait to test the first version of the software. What we are presenting in this chapter is version 2 of TWTD.
