**Author details**

Razib Hayat Khan and Poul E. Heegaard *Norwegian University of Science & Technology, Trondheim, Norway* 

Kazi Wali Ullah *Aalto University, Helsinki, Finland* 

## **6. References**

[1] OMG 2009, "UML Profile for MARTE: Modeling & Analysis of Real-Time Embedded Systems", V – 1.0

**Chapter 12** 

© 2012 El-Sattar, licensee InTech. This is an open access chapter distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use,

distribution, and reproduction in any medium, provided the original work is properly cited.

© 2012 El-Sattar, licensee InTech. This is a paper distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

**State of the Art in Interactive Storytelling** 

Hussein Karam Hussein Abd El-Sattar

http://dx.doi.org/10.5772/48549

**1. Introduction** 

goal. It consists of

iii. Success and failure conditions, and iv. A joint plan to be executed by the actors.

Additional information is available at the end of the chapter

**Technology: An Approach Based on Petri Nets** 

Interactive Storytelling is one of most promising technologies for the development of new media and new forms of digital entertainment. Interactive Storytelling can be defined as the endeavour to develop new media in which the presentation of a narrative, and its evolution can be influenced, in real-time, by the user. In traditional forms of storytelling, a storyteller would present the scenario of a story to the audiences in a predefined way (also known as a plot), which limited the variation in character interactions and context. The story refers to the succession of actions that happen in the world represented by the narrative. The origin of computerized storytellers can be traced to the "story-generation system TALE-SPIN" (Meehan, J., 1981) which is the most popular generator of short tales. A scene of the storyline is composed of beats, where the term beat refers to the smallest unit of action that has its own complete shape. A beat is a dramatic action that occurs in a scene to achieve a narrative

i. Pre-conditions, a list of predicates that need to be true for the beat to be selected; ii. Post-conditions; a list of predicates that will be true as a consequence of firing the beat;

The growing interest in Interactive Storytelling as a Research topic and as a potential technology derives from the current competition between traditional and interactive digital media. Interactive Storytelling is of interest to broadcasters and computer game producers alike. In the former case, Interactive Storytelling will bring interactivity into traditional media, potentially revolutionizing the entertainment experience. In the latter, it would improve the narrative and "aesthetic" value of computer games, with the potential to develop new game genres and attract a wider audience. The term Interactive Storytelling is sometimes used in a broader sense in the field of new media, to reflect the fact that some

