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© Ferroday Ltd 2006 On-line dictionaries with ISO 13584 Part 1 Introduction and terminology.

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Presentation on theme: "© Ferroday Ltd 2006 On-line dictionaries with ISO 13584 Part 1 Introduction and terminology."— Presentation transcript:

1 © Ferroday Ltd 2006 On-line dictionaries with ISO 13584 Part 1 Introduction and terminology

2 © Ferroday Ltd 2006 Structure of course Part 1 – Introduction to information representation and demonstration of industrial dictionaries Part 2 – Description of ISO 13584 and comparison with other standards Part 3 – Theory and practice of building ISO 13584 dictionaries Part 4 – Practical exercise in building an ISO 13584 dictionary

3 © Ferroday Ltd 2006 Terminology 1 Data – observations, measurements, or facts Data representation – the quantities, characters or symbols that substitute for data and on which operations may be performed by a computer Information – what is conveyed or represented by a particular sequence of quantities, characters or symbols

4 © Ferroday Ltd 2006 Terminology 2 Information model – structure for a data representation derived by a formal process Dictionary – collection of words and their meanings arranged in a defined structure Information exchange – data representation conveyed in a form that is understandable by the recipient

5 © Ferroday Ltd 2006 Information structure Data objects and representation symbols: Example: ‘Mat’, ‘cat’, ‘old’, ‘had sat’, ‘green’ Data organised for exchange of information: En. The old cat had sat on the green mat Fr. The old cat had sat on the mat green Ge. The old cat had on the green mat sat To communicate unambiguous information we need a defined specification for the structure of the data representation

6 © Ferroday Ltd 2006 Information meaning It was brillig and the slithy toves did gyre and gimble in the wabe. All mimsy were the borogroves and the mome raths outgabe. (Lewis Carrol) To communicate usable information in a defined structure we also need a dictionary

7 © Ferroday Ltd 2006 Information exchange The communication of usable information always requires: Symbols as objects to represent the data An nformation model to define the structure of the objects A dictionary to define the meanings of the objects Everyone in a communication process must use the same model and the same dictionary to achieve an unambiguous result

8 © Ferroday Ltd 2006 Types of information model Entity relationship (software engineering) Define objects by their attributes (properties) Assigning a value to an attribute creates an instance of an object Classification (taxonomies in biology) Classify objects by their family relationships to other objects ISO 13584 dictionaries are structured as: a classification at the user level an entity relationship model at the processing level

9 © Ferroday Ltd 2006 Modern cutting tools

10 © Ferroday Ltd 2006 Tools for multiple tasks

11 © Ferroday Ltd 2006 Industrial problems Current designs of tools cannot be described by existing standards Customers are demanding tool procurement data in digital form Every customer has a different system Tool users are digital control systems that need data in digital form Integration between product design, tool operation and tool design Future tool developments will require an updateable standard

12 © Ferroday Ltd 2006 Industrial solution

13 © Ferroday Ltd 2006 ISO 13399 Cutting tool data representation and exchange ISO 13399-1 Entity relationship model for exchange of tool geometry and tool assembly data ISO 13399-2 Dictionary for cutting items ISO 13399-3 Dictionary for tool items ISO 13399-4 Dictionary for adaptors ISO 13399-5 Dictionary for assembly items ISO 13399-50 Dictionary for reference systems and common concepts ISO 13399-60 Dictionary for connection systems ISO 13399-100 Specification for the dictionary

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