Browse Prior Art Database

Rule- and Context-based To-Do Lists Disclosure Number: IPCOM000127657D
Original Publication Date: 2005-Sep-08
Included in the Prior Art Database: 2005-Sep-08
Document File: 2 page(s) / 24K

Publishing Venue



Compared to traditional to-do lists, rule- and context-based to-do lists integrate the temporal information as given in to-do lists with location-based information. In addition to the dead-line approach of to-do lists, this approach utilizes a rule-set which expresses the relationship between temporal and/or spacial information sources. Generally, rules can be user-defined as well as automatically generated by software agents. The system that solves the rule-set is event-driven, meaning that upon arrival of an event, the respective rules are examined and evaluated. As a result of this process new events are scheduled or new rules are added to the rule-set.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 52% of the total text.

Page 1 of 2

Rule- and Context-based To-Do Lists

Traditional to-do lists usually are based on a time stamp until when a given task should be finished. However, in the quotidian life, a well-kept to-do list does not help much if the list is not checked in regular or short time intervals in order not to miss any deadlines. Therefore to-do lists are often combined with an alarm or reminder functions which trigger an alarm event at a previously configured time. Similar, rules exist for scheduling applications, which remind someone shortly before a particular event to give them time to prepare. A reminder-based system can be useless if for instance the alarm for an event is triggered 5 minutes before an important meeting in the office however the person is still at home.

Other existing and related services are location-based services. Location-based services answer three questions: Where am I? What's around me? How do I get there? They determine the location of the user by using one of several technologies for determining position (e.g., GPS receiver, Bluetooth devices, triangulation using mobile base stations), then use the location and other information to provide personalized applications and services. Known applications are traffic advisories, navigation help including maps and directions, and roadside assistance. Other services can combine the present location with information about personal preferences to help users to find food, lodging, and entertainment that fits their taste and pocketbook. Besides some certain well-defined user-profile information that is combined with the location information, location-based services are a pure push technology where a service providers advertise (and hence push) information to clients. Therefore the technique is unsuitable for user-initiated services such as the to-do list problem.

Rule- and context-based to-do lists significantly extend the horizon of traditional to-do lists by introducing a novel rule-based concept. Events combine spacial and temporal information in order to build a rule-set that is being dynamically resolved. Hence, this concept is capable to automatically solve time/l...